ratio of sodium metabisulfate and water to take gold chloride solution back to powder?

ratio of sodium metabisulfate and water to take gold chloride solution back to powder?
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What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O

Description : What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O

Last Answer : (a) sodium carbonate,Na 2 CO 3

What product is formed when electricity is passed throughan aqueous solution of sodium chloride? (1) Sodium and water (2) Sodium oxide (3) Sodium and chlorine (4) Sodium hydroxide

Description : What product is formed when electricity is passed throughan aqueous solution of sodium chloride? (1) Sodium and water (2) Sodium oxide (3) Sodium and chlorine (4) Sodium hydroxide

Last Answer : (4) Sodium hydroxide Explanation: When electricity is passed through an aqueous solution of sodium chloride, it gives hydrogen, chlorine and sodium hydroxide as a product.

Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of (A) Calcium sulphate (B) Sodium chloride(C) Sodium sulphate(D) Magnesium chloride

Description : Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of (A) Calcium sulphate (B) Sodium chloride (C) Sodium sulphate (D) Magnesium chloride

Last Answer : (B) Sodium chloride

An aqueous solution of sodium chloride is prepared by dissolving 10kg of sodium chloride in 50 kg of water find (i) Weight % (ii) Mole % of solution. [Atomic weight of Na = 23, Cl = 35.5]

Description : An aqueous solution of sodium chloride is prepared by dissolving 10kg of sodium chloride in 50 kg of water find (i) Weight % (ii) Mole % of solution. [Atomic weight of Na = 23, Cl = 35.5] 

Last Answer : Weight of NaCl = 10 kg Weight of H2O = 50 kg Total weight = 60 kg Weight % of NaCl = (10/ 60) * 100 =16.67% Weight % of H2O = (50/ 60) * 100 = 83.33% Molecular weight of NaCl = 58.5 k moles of NaCl ... 100 = 5.79% Mol % of H2O = (moles of H2O / Total moles)*100  = (2.78/ 2.949)*100 = 94.26%

A solution of sodium thiosulphate on addition of few drops of ferric chloride gives violet colour due to the formation of

Description : A solution of sodium thiosulphate on addition of few drops of ferric chloride gives violet colour due to the formation of

Last Answer : A solution of sodium thiosulphate on addition of few drops of ferric chloride gives violet colour due to the formation of ... `Fe_(2)(S_(2)O_(3))_(2)`

What happens when sodium chloride solution is mixed with lead nitrate solution?

Description : What happens when sodium chloride solution is mixed with lead nitrate solution?

Last Answer : The chemical reaction is:2 NaCl + Pb(NO3)2 = PbCl2(s) + 2 NaNO3

In patients receiving massive blood transfusion for acute blood loss, which of the following is/are correct? A. Packed red blood cells and crystalloid solution should be infused to restore oxygen-carrying capacity and intravascular volume. B. Two units of FFP should be given with every 5 units of packed red blood cells in most cases. C. A “six pack” of platelets should be administered with every 10 units of packed red blood cells in most cases. D. One to two ampules of sodium bicarbonate should be administered with every 5 units of packed red blood cells to avoid acidosis. E. One ampule of calcium chloride should be administered with every 5 units of packed red blood cells to avoid hypocalcemia.

Description : In patients receiving massive blood transfusion for acute blood loss, which of the following is/are correct? A. Packed red blood cells and crystalloid solution should be infused to restore oxygen ... should be administered with every 5 units of packed red blood cells to avoid hypocalcemia.

Last Answer : Answer: A DISCUSSION: Patients who are suffering from acute blood loss require crystalloid resuscitation as the initial maneuver to restore intravascular volume and re-establish vital signs. If 2 to 3 liters ... when the infusion of blood proceeds at a rate exceeding 1 to 2 units every 5 minutes

The pH value of 12 may be of an aqueous solution of 1. Sodium hydroxide 2. Lithium hydroxide 3. Sodium chloride 4. Hydrogen chloride The correct statements are: (a) 1 and 2 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4

Description : The pH value of 12 may be of an aqueous solution of 1. Sodium hydroxide 2. Lithium hydroxide 3. Sodium chloride 4. Hydrogen chloride The correct statements are: (a) 1 and 2 (b) 2 and 4 (c) 3 and 4 (d) 1 and 4

Last Answer : Ans:(a)

Solution used in Doctor's treatment for the removal of mercaptans is (A) Sodium hydroxide (B) Sodium plumbite (C) Cupric chloride (D) Potassium isobutyrate

Description : Solution used in Doctor's treatment for the removal of mercaptans is (A) Sodium hydroxide (B) Sodium plumbite (C) Cupric chloride (D) Potassium isobutyrate

Last Answer : (B) Sodium plumbite

A student took Sodium Sulphate solution in a test tube and added Barium Chloride solution to it. He observed that an insoluble substance has formed. The colour and molecular formula of the insoluble substance is (a) Grey, Ba2SO4 (b) Yellow, Ba(SO4)2, (c) White, BaSO4 (d) Pink, BaSO4,

Description : A student took Sodium Sulphate solution in a test tube and added Barium Chloride solution to it. He observed that an insoluble substance has formed. The colour and molecular formula of the insoluble substance is (a) Grey, Ba2SO4 (b) Yellow, Ba(SO4)2, (c) White, BaSO4 (d) Pink, BaSO4,

Last Answer : Answer: (c) White, BaSO4

silver nitrate is added to a solution of sodium chloride?

Description : silver nitrate is added to a solution of sodium chloride?

Last Answer : A solution of silver nitrate is added to a solution of sodium chloride, it produces a white insoluble precipitate of silver chloride.  AgNO3 (aq)+NaCl(aq)→AgCl(ppt)+NaNO3 (aq)

Brine is an a) aqueous solution of sodium hydroxide b) aqueous solution of sodium carbonate c) aqueous solution of sodium chloride d) aqueous solution of sodium bicarbonate

Description : Brine is an a) aqueous solution of sodium hydroxide b) aqueous solution of sodium carbonate c) aqueous solution of sodium chloride d) aqueous solution of sodium bicarbonate

Last Answer : c) aqueous solution of sodium chloride

A student prepares aqueous solutions of the following salts: Copper sulphate, ferrous sulphate, sodium sulphate and barium chloride. Write the color of each solution thus formed?

Description : A student prepares aqueous solutions of the following salts: Copper sulphate, ferrous sulphate, sodium sulphate and barium chloride. Write the color of each solution thus formed?

Last Answer : Answer. Copper sulphate (aq) – blue in color Ferrous sulphate (aq) – pale green in color Sodium sulphate (aq) – colorless Barium chloride (aq) – white in color

Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Description : Which of the following aqueous solutions would hav the lowest boiling point? Would it be a 1.0 molal solution of: w) Hydrochloric acid x) Sodium Hydroxide y) Acetic Acid, z) Magnesium Chloride

Last Answer : ANSWER: Y -- ACETIC ACID

2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar

Description : 2.5 liters of a sodium chloride (NaCl) solution contain 5 moles of the solute. What is the molarity? w) 5 molar x) 2 molar y) 2.5 molar z) 12.5 molar

Last Answer : ANSWER: X -- 2 MOLAR 

Which of the following statements is correct about aniline? (a) is weak acid. (b) diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid. (c) can be nitrated with concentrated HNO3 to form p-nitroaniline. (d) gives an intense green color with a suspension of bleaching powder in water

Description : Which of the following statements is correct about aniline? (a) is weak acid. (b) diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid. (c) can be nitrated with ... p-nitroaniline. (d) gives an intense green color with a suspension of bleaching powder in water

Last Answer : diazotizes to benzenediazonium chloride when treated with ice-cold nitrous acid.

What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Description : What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Last Answer : ANSWER: A

What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Description : What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine

Last Answer : ANSWER: A

Chemical name of bleaching powder is (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride

Description : Chemical name of bleaching powder is (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride

Last Answer : (2) Calcium hypochlorite Explanation: Calcium hypochlorite is a chemical compound with formula Ca(ClO)2. It is widely used for water treatment and as a bleaching agent. This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite.

Tear gas is – (1) Chloroprene (2) Carbonyl chloride (3) Nitrous oxide (4) Bleaching powder

Description : Tear gas is – (1) Chloroprene (2) Carbonyl chloride (3) Nitrous oxide (4) Bleaching powder

Last Answer : (2) Carbonyl chloride Explanation: Tear gas, formally known as a lachrymatory agent or ladnymator (from lacrima meaning "tear" in Latin), is a non-lethal chemical weapon that ... temporary blindness, etc. Lachrymators are thought to act by attacking sulphydryl functional groups in enzymes.

The chemical name of Bleaching powder is (A)Calcium Chloride (B) Calcium Chloro-Oxide (C) Calcium Oxychloride (D) Hypochloride

Description : The chemical name of Bleaching powder is (A)Calcium Chloride (B) Calcium Chloro-Oxide (C) Calcium Oxychloride (D) Hypochloride

Last Answer : (C) Calcium Oxychloride

Polyvinyl chloride containers are not suitable for storing (A) Foodstuffs (B) Woolen clothes (C) Metallic powder (D) None of these

Description : Polyvinyl chloride containers are not suitable for storing (A) Foodstuffs (B) Woolen clothes (C) Metallic powder (D) None of these

Last Answer : (A) Foodstuffs

Chemical name of bleaching powder is : (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride

Description : Chemical name of bleaching powder is : (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride

Last Answer : Calcium hypochlorite

Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Description : Ammonial is a mixture of (1) aluminium powder and ammonium nitrate (2) aluminium powder and ammonium chloride (3) aluminium powder and ammonium sulphate (4) aluminium powder and potassium nitrate

Last Answer : aluminium powder and ammonium nitrate

Tear gas is : (1) Chloroprene (2) Carbonyl chloride (3) Nitrous oxide (4) Bleaching powder

Description : Tear gas is : (1) Chloroprene (2) Carbonyl chloride (3) Nitrous oxide (4) Bleaching powder

Last Answer : Carbonyl chloride

Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Last Answer : i hope it helped you

Pick out the wrong statement. (A) Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action (B) Soap powder is prepared by mixing soap with hydrated sodium carbonate (C) Detergents differ from soaps in their action in hard water (D) Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

Description : Pick out the wrong statement. (A) Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action (B) Soap powder is ... ., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

Last Answer : (D) Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

The common name of sodium bicarbonate is - (1) Soda ash (2) Baking soda (3) Soda lime (4) Baking powder

Description : The common name of sodium bicarbonate is - (1) Soda ash (2) Baking soda (3) Soda lime (4) Baking powder

Last Answer : (2) Baking soda Explanation: Sodium bicarbonate (NaHCO3) is also known as baking soda, bread soda, cooking soda, and bicarbonate of soda. It is primarily used in cooking (baking), as a leavening ... of the batter and forms the characteristic texture and grain in pancakes, cakes, quick breads, etc.

Commercially, sodium bicarbonate is known as – (1) Washing soda (2) Baking soda (3) Bleaching powder (4) Soda ash

Description : Commercially, sodium bicarbonate is known as – (1) Washing soda (2) Baking soda (3) Bleaching powder (4) Soda ash

Last Answer : (2) Baking soda Explanation: Sodium bicarbonate or sodium hydrogen carbonate is the chemical compound with the formula NaHCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a ... . It is a component of the mineral patron and is found dissolved in many mineral springs.

What is baking powder? (a) mixture of baking soda with tartaric acid (b) mixture of washing soda with citric acid (c) mixture of sodium hydrogen carbonate with edible acid (d) option a and c both

Description : What is baking powder? (a) mixture of baking soda with tartaric acid (b) mixture of washing soda with citric acid (c) mixture of sodium hydrogen carbonate with edible acid (d) option a and c both

Last Answer : (d) option a and c both

Sodium carbonate (soda ash) is not used in the manufacture of (A) Fire extinguishers (B) Sugar (C) Baking powder (D) Detergents

Description : Sodium carbonate (soda ash) is not used in the manufacture of (A) Fire extinguishers (B) Sugar (C) Baking powder (D) Detergents

Last Answer : (D) Detergents

Which of the following has sodium bicarbonate as its main constituent? (A) Baking soda (B) Baking powder (C) Washing soda (D) None of these

Description : Which of the following has sodium bicarbonate as its main constituent? (A) Baking soda (B) Baking powder (C) Washing soda (D) None of these

Last Answer : (B) Baking powder

Crucible is repaired by? (i) Magnasite Powder (ii) Magnasite Powder & Sodium Silicate.* (iii) Sodium Silicate (iv) Aluminium powder

Description : Crucible is repaired by? (i) Magnasite Powder (ii) Magnasite Powder & Sodium Silicate.* (iii) Sodium Silicate (iv) Aluminium powder

Last Answer : (ii) Magnasite Powder & Sodium Silicate.*

The common name of sodium bicarbonate is (1) Soda ash (2) Baking soda (3) Soda lime (4) Baking powder

Description : The common name of sodium bicarbonate is (1) Soda ash (2) Baking soda (3) Soda lime (4) Baking powder

Last Answer : Baking soda

Dry powder fire extinguishers contain (1) sand (2) sand and sodium carbonate (3) sand and potassium carbonate (4) sand and sodium bicarbonate

Description : Dry powder fire extinguishers contain (1) sand (2) sand and sodium carbonate (3) sand and potassium carbonate (4) sand and sodium bicarbonate

Last Answer : sand and sodium bicarbonate

Commercially, sodium bicarbonate is known as (1) Washing soda (2) Baking soda (3) Bleaching powder (4) Soda ash

Description : Commercially, sodium bicarbonate is known as (1) Washing soda (2) Baking soda (3) Bleaching powder (4) Soda ash 

Last Answer : Baking soda

10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 mL of 1.0 M Mohr salt solution was added c

Description : 10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 mL of 1.0 M Mohr salt solution was added c

Last Answer : 10g sample of bleaching powder was dissolved into water to make the solution one litre. To this solution 35 ... Cl_(2)` approximately is (mol wt = 71)

What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.

Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Description : Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Last Answer : (i) H2 + Cl2 → 2HCl (ii) 3 BaCl2 + Al2(SO4)3 → BaSO4 + 2 AlCl3 (iii) 2Na + 2H2O → 2NaOH + H2↑

Explosion occurs in contact with sodium water but why does sodium chloride not occur ?

Description : Explosion occurs in contact with sodium water but why does sodium chloride not occur ?

Last Answer : Sodium reacts with water to form sodium alkali. This can happen then. This reaction is due to generating a lot of heat. However, sodium chloride is salt. A type of ionic compound. Makes. Which dissolves in water. Such an explosion does not occur because there is no reaction organization.

What happens sodium chloride dissolves in water?

Description : What happens sodium chloride dissolves in water?

Last Answer : It separates into positive sodium and negative chlorideions.

How At 60 c how much more sodium chloride than sodium chloride will dissolve in 100 ml of water?

Description : How At 60 c how much more sodium chloride than sodium chloride will dissolve in 100 ml of water?

Last Answer : What is the answer ?

What is a chemical reaction called when two chemicals react to form sodium chloride (NaCl) and water (H2O).?

Description : What is a chemical reaction called when two chemicals react to form sodium chloride (NaCl) and water (H2O).?

Last Answer : What is the answer ?

In Addison’s disease, there is excessive retention of (A) Potassium (B) Sodium (C) Chloride (D) Water

Description : In Addison’s disease, there is excessive retention of (A) Potassium (B) Sodium (C) Chloride (D) Water

Last Answer : Answer : A

Municipal water in India is generally treated with (a) Chlorine (b) Potassium permanganate (c) Sodium Chloride (d) Sodium Carbonate

Description : Municipal water in India is generally treated with (a) Chlorine (b) Potassium permanganate (c) Sodium Chloride (d) Sodium Carbonate

Last Answer : Ans:(a)

Lime water contains (a) sodium hydroxide (b) calcium hydroxide (c) sodium carbonate (d) calcium chloride

Description : Lime water contains (a) sodium hydroxide (b) calcium hydroxide (c) sodium carbonate (d) calcium chloride

Last Answer : Ans:(b)

What is the most common salt in sea water? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

Description : What is the most common salt in sea water? (1) Calcium carbonate (2) Potassium chloride (3) Sodium chloride (4) Magnesium sulphate

Last Answer : (3) Sodium chloride Explanation: Sodium chloride, also known as salt, common salt, table salt or halite, is an ionic compound with the formula NaCl, representing equal proportions of sodium and ... for the salinity of the ocean and of the extracellular fluid of many multi-cellular organisms.

The presence of which of the following salts in water causes corrosion in steam boilers? (1) Sodium Chloride (2) Magnesium Chloride (3) Calcium bicarbonate (4) Potassium bicarbonate

Description : The presence of which of the following salts in water causes corrosion in steam boilers? (1) Sodium Chloride (2) Magnesium Chloride (3) Calcium bicarbonate (4) Potassium bicarbonate

Last Answer : (2) Magnesium Chloride Explanation: Magnesium chloride is the name for the chemical compound with the formula MgCl2 and its various hydrates MgCl2(H2O)x. These salts are typical ionic halides, being highly soluble in water.

Which of the following is responsible for permanent hardness of water? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

Description : Which of the following is responsible for permanent hardness of water? (1) magnesium bicarbonate (2) sodium chloride (3) calcium sulphate (4) calcium bicarbonate

Last Answer : (3) calcium sulphate Explanation: Permanent hardness is caused by dissolved calcium sulfate (which is not removed by boiling). Hard water contains dissolved magnesium and calcium ions. These make ... . Temporary hardness is caused by dissolved calcium hydrogen carbonate (which is removed by boiling)

Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl