Description : 1 g of complex `[Cr(H_(2)O)_(5)Cl]Cl_(2).H_(2)O` was passed through a cation exchanger to produce HCl. The acid liberated was diluted to 1 litre. What
Last Answer : 1 g of complex `[Cr(H_(2)O)_(5)Cl]Cl_(2).H_(2)O` was passed through a cation ... molarity of acid solution [Molecular weight of complex=266.5]?
Description : Which will have greater molar conductivity ? Solution containing 1 mol KCl in 200 cc or 1 mol of KCl in 500 cc.
Last Answer : Ans. 1 mol of KCl in 500 cc.
Description : the hardness of a water sample (in terms of Equivalents of `CaCO_(3)`) containing `10^(-3)MCaSO_(4)` Is : (Molar mass of `CaSO_(4)=1365h mol^(-1)`)
Last Answer : the hardness of a water sample (in terms of Equivalents of `CaCO_(3)`) containing `10^(-3)MCaSO_(4)` Is : ( ... 10 ppm B. 50 ppm C. 90 ppm D. 100 ppm
Description : The volume strength of `1M H_(2)O_(2)` is (Molar mass of `H_(2)O_(2) = 34 g mol^(-1)`)
Last Answer : The volume strength of `1M H_(2)O_(2)` is (Molar mass of `H_(2)O_(2) = 34 g mol^(-1)`) A. `11.35` B. `22.4` C. `16.8` D. `5.6`
Description : On treatment of 100mL of 0.1 M solution of `CoCl_(3).6H_(2)O` with excess `AgNO_(3),1.2xx10^(22)` ions are precipitated. The complex is :
Last Answer : On treatment of 100mL of 0.1 M solution of `CoCl_(3).6H_(2)O` with excess `AgNO_(3),1.2xx10^(22)` ions are ... `[Co(H_(2)O)_(4)Cl_(2)]Cl.2H_(2)O`
Description : Cation exchanger is regenerated usually with (A) NaOH (B) H2SO4 (C) Hydrazine (D) Alum solution
Last Answer : (B) H2SO4
Description : In an organic compound of molar mass `108 gm mol^-1 C, H and N` atoms are presents in `9 : 1 : 3.5` by mass. Molecular can be
Last Answer : In an organic compound of molar mass `108 gm mol^-1 C, H and N` atoms are presents in `9 : 1 : 3.5` by mass. ... (5)H_(6)N_(3)` D. `C_(4)H_(18)N_(3)`
Description : A six co-ordinate complex has the formula `CoCl_(3).5NH_(3).H_(2)O`. Electrical coductance measurements indicate the presence of three ions in one for
Last Answer : A six co-ordinate complex has the formula `CoCl_(3).5NH_(3).H_(2)O`. Electrical coductance measurements indicate the ... complex? A. 3 B. 2 C. 4 D. 1
Description : What is the molar mass of haemocyanin and the freezing point of the solution when an aqueous solution is prepared by dissolving 1.5 grams of haemocyanin a protein obtained from crabs in 0.25 litres of?
Last Answer : Haemocyanins are a group of proteins.
Description : During the preparations of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of the calcium chloride taken in the guard tube is to -SST 10th
Last Answer : C - Calcium chloride is a good dehydrating agent. It absorbs moisture or water content from the gas making it dry. Calcium chloride is widely used as a desiccant for drying gases and liquid hydrocarbons in many industries due to its ability to absorb water.
Description : A solution contains 1g mol. Each of p-toluene diazonium chloride and p-nitrophenyl diazonium cholride. To this 1g mol.of alkaline solution of phenol i
Last Answer : A solution contains 1g mol. Each of p-toluene diazonium chloride and p-nitrophenyl diazonium ... Predict the major product. Explain your answer.
Description : Polyvinyl alcohol is used as a (A) Cation/anion exchanger (B) Water soluble adhesive (C) Textile fibre (D) Non-sticky coating on frying pans
Last Answer : (B) Water soluble adhesive
Description : Which of the following is the most widely used disinfectant in water treatment? (A) Chlorine (B) Irradiation of water by ultraviolet light (C) Cation exchanger (D) Coagulation
Last Answer : (A) Chlorine
Description : Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution ... ) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)
Last Answer : (c) (ii) and (iv) only
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
Description : A certain fluid is flowing in a 0.5m x 0.3 channel at the rate of 3 m/s and has a specific volume of 0.012 m³/kg. Determined the mass of water flowing in kg/s. a. 267 kg/s b. 378 kg/s c. 375 kg/s d. 456.5 kg/s m = Aν/V
Last Answer : 375 kg/s
Description : Molar gas constant has value A. 7 J mol-1 K-1 B. 8 J mol-1 K-1 C. 8.31 J mol-1 K-1 D. 5 J mol-1 K-1
Last Answer : 8.31 J mol-1 K-1
Description : in titration of 25 mL of the solution containing Cu2+ with the concentration of 0.01 molar , with SCN – (0.01 Molar) , if we use the indicator that changed its color in PSCN= 9. Calculate the error of titration PKSP(CuSCN) =13.4?
Last Answer : just the color change from the indicator. Thus, a careful selection of the indicator will reduce the indicator error. For example, if the equivalence point is at a pH of 8.4, then the ... are in the range of aqueous pH changes are of little use. Instead, the titrant and indicator used
Description : Sodium chloride molar mass?
Last Answer : The molar mass of sodium chloride is 58,44.
Description : What do you observe when ethyne is passed through ammoniacal cuprous chloride solution?
Last Answer : A red-brown precipitate of copper acetylide is formed.
Description : A 0.2 g sample containing copper (II) was analysed iodometrically, where copper (II) is reduced to copper (I) by iodide ions. `2Cu^(2+) +4I^(-)rarr2 C
Last Answer : A 0.2 g sample containing copper (II) was analysed iodometrically, where copper (II) is reduced to copper (I) by ... ` B. `63.5%` C. `53%` D. `37%`
Description : A solution containing 30 g of non-volatile solute exactly in 90 g of water has a vapour pressure of 2.8 kPa at 298 K. Further 18 g of water is added to this solution. The new vapour pressure ... K. Calculate (i) the molecular mass of solute and (ii) vapour pressure of water at 298 K -Chemistry
Last Answer : For a very dilute solution ∴ Molecular mass, MB = 34 g/mol.
Description : Pick out the wrong statement: (A) The capacity of an evaporator is reduced by the boiling point elevation (B) Corrosive liquid is normally passed through the tubes in a ... recompression evaporator (D) Heat sensitive materials should be concentrated in high pressure evaporators
Last Answer : (D) Heat sensitive materials should be concentrated in high pressure evaporators
Description : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce
Last Answer : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of ... D. `5.9xx10^(-6)` moles per litre
Description : P,Q, R and S are four metals whose typical reaction are given below (I) (II) When Q is added to a solution containing the ions of the other metals, me
Last Answer : P,Q, R and S are four metals whose typical reaction are given below (I) (II) When Q is added to a solution ... P lt S` D. `Q lt P lt S lt R`
Description : The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present in `30 mL` of `0.01M` solution of `[Cr(H_(2)O)_(
Last Answer : The volume (in `mL`) of `0.1M Ag NO_(3)` required for complete precipitation of chloride ions present ... Cl]Cl_(2)`, as silver chloride is close to:
Description : A complex of platinum, ammonia and chloride produces four ions per molecules in the solution. The structure consistent with the observation is :
Last Answer : A complex of platinum, ammonia and chloride produces four ions per molecules in the solution. The structure consistent ... [Pt(NH_(3))_(4)Cl_(2)]Cl`
Description : Which is obtained, when H2S is passed through the solution of sodium zincate?
Last Answer : ZnS
Description : A molar solution is one that contains one mole of a solute in [IIT 1986] (A) 1000 g of the solvent (B) One litre of the solvent (C) One litre of the solution (D) 22.4 litres of the solution
Last Answer : (C) One litre of the solution
Description : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of the metal was formed. What is the equivalent weight of th
Last Answer : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of ... formed. What is the equivalent weight of the metal ?
Description : 1 mole of `OH^(-)` ions is obtained from 85 g of hydroxide of a metal. What is the equivalent weight of the metal ?
Last Answer : 1 mole of `OH^(-)` ions is obtained from 85 g of hydroxide of a metal. What is the equivalent weight of the metal ?
Description : Which of the following electrolytes is a major anion in body fluid? a) Chloride Chloride is a major anion found in extracellular fluid. b) Potassium Potassium is a cation. c) Sodium Sodium is a cation. d) Calcium Calcium is a cation.
Last Answer : a) Chloride Chloride is a major anion found in extracellular fluid.
Description : Which of the following electrolytes is a major cation in body fluid? a) Potassium Potassium is a major cation that affects cardiac muscle functioning. b) Chloride Chloride is an anion. c) Bicarbonate Bicarbonate is an anion. d) Phosphate Phosphate is an anion.
Last Answer : a) Potassium Potassium is a major cation that affects cardiac muscle functioning.
Description : Which of the following is an example of a "cation": w) ammonium x) chloride y) sulfate z) oxalate
Last Answer : ANSWER: W -- AMMONIUM
Description : At the equilibrium of the reaction , `N_(2)O_(4)(g)rArr2NO_(2)(g)`, the observed molar mass of `N_(2)O_(4)` is 77.70 g . The percentage dissociation o
Last Answer : At the equilibrium of the reaction , `N_(2)O_(4)(g)rArr2NO_(2)(g)`, the observed molar mass of `N_(2)O_(4)` is ... A. 28 .4 B. 46 .7 C. 22.4 D. 18 .4
Description : A 2.5 gm impure sample containing weak monoacidic base (Mol. wt. = 45) is dissolved in 100 ml water and titrated with 0.5 M HCI when of `((1)/(5))^(th
Last Answer : A 2.5 gm impure sample containing weak monoacidic base (Mol. wt. = 45) is dissolved in 100 ml ... D. Weight percentage of base in given sample is 80%.
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.
Description : When any solution passess through a cation exchange resin that is in acidic form, H ion of the resin is replaced by cations of the solution. A solutio
Last Answer : When any solution passess through a cation exchange resin that is in acidic form, H ion ... D. tetraaquadichloro chromium (III) chloride dihydrate.
Description : How many tablets ,each containing 8.75 grains of mercuric chloride will be required to make one pint of 0.2% solution?
Last Answer : 4.375 gr. in 1 fl ounce = 1% w/v solution 4.375 gr X 0.2 = 0.875 gr required to get 1 fl.oz 0.2% 0.875 gr x 20 = 17.5 gr required to get 20 fl.oz 0.2 % 17.5 gr/8.75 gr = 2 tablets
Description : How many tablets, each containing 8.75 grains of mercuric chloride will be required to make one quart of 0.05% solution?
Last Answer : 4.375 gr. in 1 fl ounce = 1% w/v solution 4.375 gr X 0.05 = 0.2187 gr required to get 1 fl.oz 0.05% 0.2187 gr x 40 = 8.748 gr≈ 8.75 grain required to get 40 fl.oz 0.05 % 8.75 gr/8.75 gr = 1 tablets Therefore, one tablet is required to prepare one quart of 0.05% solution.
Description : In the electrolysis of silver chloride, a charge of `4xx10^(5)` C is flowing through the electrolyte. Calculate the number of silver `(Ag^(+))` ions f
Last Answer : In the electrolysis of silver chloride, a charge of `4xx10^(5)` C is flowing through the electrolyte. ... silver `(Ag^(+))` ions flowing through it.
Description : A high voltage applied to a gas discharge tube containing neon gas at very low pressure causes a current to flow through the tube. Which one of the following are the particles that flow towards the ... Are they w) electrons x) protons y) negatively charged neon ions z) positively charged neon ions
Last Answer : ANSWER: Z -- POSITIVELY CHARGED NEON IONS
Description : Received a text from George Jackson @ 325-267-8914 is he safe?
Last Answer : Not. He is a scammer. See scam report here: http://answers.answerspal.com/386/avoid-text-message-scam?start=15#a_list_title
Description : What value is the product of (-310)(-267) in simplified form?
Last Answer : -43
Description : 267 .Double knives movers offers advantage over conventional mower are a)Double knife are dynamically balanced b) They can be operated at higher forward speeds then conventional mower c)They produce more uniform stubble height d)All of the above
Last Answer : d)All of the above
Description : Suppose that we have numbers between 1 and 1000 in a binary search tree and want to search for the number 364. Which of the following sequences could not be the sequence of nodes examined? (A) 925, 221, 912, 245, 899, ... 926, 203, 912, 241, 913, 246, 364 (D) 3, 253, 402, 399, 331, 345, 398, 364
Last Answer : (C) 926, 203, 912, 241, 913, 246, 364
Description : If the average of two numbers are 138& product is 2241. Then find the difference of both numbers? A) 225.40 B) 259.25 C) 267.81 D) 294.57
Last Answer : B) let the two number be a & b sum of two numbers, a+b = 138*2 =276---1 product of two numbers, a*b=2241 (a+b)2 = a2 + 2ab + b2 ------2 (a-b)2 = a2 -2ab +b2 ------3 solving 2 & 3, 76176 - (a-b)2 = 4*2241 a-b = 259.25
Description : Calcium carbonate is most soluble in: w) 0.2 Molar Sodium carbonate x) 0.1 Molar Calcium chloride y) 0.1 Molar Sodium hydroxide z) 0.1 Molar Hydrochloric acid
Last Answer : ANSWER: Z -- 0.1 MOLAR HYDROCHLORIC ACID