Description : What is the molarity of a salt solution prepared b dissolving three moles of salt in 500 milliliters of water? w) 1 x) 2 y) 4 z) 6
Last Answer : ANSWER: Z -- 6
Description : Absorption of Vitamin B12 requires the presence of (A) Pepsin (B) Hydrochloric acid (C) Intrinsic factor (D) Boh (B) and (C)
Last Answer : Answer : D
Description : Moles of solute divided by kilograms of solvent is expression for: w) molarity x) solute-to-solution ratio y) mole percentage z) molality
Last Answer : ANSWER: Z -- MOLALITY
Description : An indicator is one kind of the following compound (a) Reducing agent. (b) Salt (c) Base (d) Weak base or acid only
Last Answer : (d) Weak base or acid only
Description : If 1.8 L of water is added to 2.5 L of a 7.0 M KOH solution what is the molarity of the new solution?
Last Answer : If 1.8 L of water is added to 2.5 L of a 7.0 M KOH solution,what is the molarity of the new solution?
Description : The relation between molarity (M) and molarity (m) is given by : (`rho` = density of solution (g/mL), `M_(1)` = molecular weight of solute) :-
Last Answer : The relation between molarity (M) and molarity (m) is given by : (`rho` = density of solution (g/mL), `M_(1 ... ))` D. `m = (1000M)/(1000rho -MM_(1))`
Description : `0.01` M HA (aq.) is `2%` dissociated, `[OH^(-)]` of solution is :
Last Answer : `0.01` M HA (aq.) is `2%` dissociated, `[OH^(-)]` of solution is : A. `2xx10^(-4)` B. `10^(-8)` C. `5xx10^(-11)` D. `2xx10^(-12)`
Description : An aqueous solution of CuSO4 is acidic in nature because the salt undergoes (a) dialysis (b) hydrolysis (c) electrolysis (d) photolysis
Last Answer : Ans:(b)
Description : When 0.50 liter of a 12M solution is diluted to 1.0 liters the molarity of this new solution is?
Last Answer : 6.0 M when you multiply 12M by the .50 liters you will get the6.0 M
Description : What is the molarity of 10.0 g of KCl in 0.500 L of solution?
Last Answer : The molarity is 0,268.
Description : What is the molarity of a solution that contains 0.40 mol HCl in 9.79 L solution?
Last Answer : The molarity is 0,041
Description : Amount of Topic 10% for 4000 m2 if rate of clodinafop is 60 g/ha. a). 600 g b). 480 g c). 300 g d). 240 g
Last Answer : d). 240 g
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 : For a solution of volatile liquids, the partial vapour pressure of each component in solution is directly proportional to its (a) Molarity (b) Mole fraction (c) Molality (d) Normality
Description : Why does molality of a solution remain unchanged with change in temperature while its molarity changes?
Last Answer : Molality of a solution depends on the mass of solvent and man does not vary with change in temp. where as molarity depends on volume of solution and volume change with change in temp.
Description : What is molarity solution ?
Last Answer : The number of moles of dissolved solution per liter of a solution is called the molarity of that solution.
Description : Molarity and Molality of a solution of an liquid (mol. Wt. = 50) in aqueous solution is 9 and 10 respectively. What is the density of solution ?
Last Answer : Molarity and Molality of a solution of an liquid (mol. Wt. = 50) in aqueous solution is 9 and 10 respectively. What ... /cc C. 1.05 g/cc D. 1.35 g/cc
Description : In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_(2)O_(7)` solution of molarity `M_(1)`
Last Answer : In the titration of `K_(2)Cr_(2)O_(7)` and ferrous sulphate, following data is obtained: `V_(1)` mL of `K_(2)Cr_ ... V_(2)` D. `M_(1)V_(1)=M_(2)V_(2)`
Description : A dilute solution of `H_(2)SO_(4)` is made by adding 5 mL of `3N H_(2)SO_(4)` to 245 mL of water. Find the normality and molarity of the diluted solut
Last Answer : A dilute solution of `H_(2)SO_(4)` is made by adding 5 mL of `3N H_(2)SO_(4)` ... of water. Find the normality and molarity of the diluted solution.
Description : What is the molarity of a solution made by dissolving 6 moles of naoh in 3 kg?
Last Answer : Need answer
Description : What is the molarity of 5.60 mol of sodium carbonate in 1500 ml of solution?
Last Answer : Molarity = moles of solute/Liters of solution ( 1500 mL = 1.5 Liters ) Molarity = 0.800 moles NaOH/1.5 Liters = 0.533 M sodium hydroxide ...
Description : One of the following ways of expressing the concentration of a solution does not depend on temperature. It is-----? A. Molarity B. Molality (Answer) C. Normality D. Formality
Last Answer : B. Molality (Answer)
Description : Define Molarity of solution and how it is calculated?
Last Answer : Molarity of solution= It is the number of gram moles of solute present in one litre of solution. M= gram moles of solute/ volume of solution in litres
Description : 20 gram of caustic soda are dissolved in water to prepare 500 ml of solution. Find the normality and molarity of solution.
Last Answer : Basis: 500 ml solution. Weight of solute = 20 gm Molecular weight of NaOH = 40 Gram moles of solute = 20/40 = 0.5 Molarity = Gram moles/ Volume of solution in lit 0.5/0.5 = 1 M Normality = gram equivalent of solute/ volume of solution in lit = 0.5/0.5 = 1N
Description : Define Molarity of solution.
Last Answer : Molarity of solution= gram moles of solute/ volume of solution in litre
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 : Hydrolysis of an ester can be accomplished by (a) base-promoted hydrolysis (b) acid-catalyzed hydrolysis (c) both of the above (d) neither of the above
Last Answer : both of the above
Description : A buffer consists of a weak acid and is salt.
Last Answer : (i) CH3COOH + CH3COONa (ii) C6H5COOH + C6H5COONa (iii) H2CO3 + NaHCO3 (iv) H3PO3 + NaH2PO4
Description : Loss of or weak residual magnetism in an alternator or generator can be corrected for by _________________. A. running the rotor in the opposite direction for 5 minutes B. allowing the generator ... rheostat fully counterclockwise D. using a storage battery or battery charger to 'flash' the field
Last Answer : Answer: D
Description : Which of the following plots will obtained for a conductomeric titration of strong acid against a weak base?
Last Answer : Which of the following plots will obtained for a conductomeric titration of strong acid against a weak base? A. B. C. D.
Description : Antacid contain a) Weak acid b) Weak base c) Strong acid d) Strong base
Last Answer : b) Weak base
Description : Which of the following statements is false about aniline? (a) It is a primary aromatic amine. (b) It is a weak base which forms salts with acids. (c) It liberates nitrogen on treatment with ice-cold nitrous acid. (d) It can be prepared by the reduction of nitrobenzene with tin and HCl
Last Answer : It liberates nitrogen on treatment with ice-cold nitrous acid
Description : Which one of the following statements about buffers is false? a. They work inside cells. b. They consist of a weak acid and weak base. c. They prevent pH shifts. d. They enhance chemical reactions.
Last Answer : d. They enhance chemical reactions.
Description : The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong (A) Base and strong acid (B) Base and weak acid (C) Acid and weak base (D) None of these
Last Answer : Option A
Description : Find the percentage change in profit of company M in 2007 from the previous year. 1) 50% increase 2) 20% increase 3) 10% increase 4) 10% decrease
Last Answer : 1) 50% increase
Description : When the electrolyte level of a lead-acid storage battery has decreased due to normal evaporation, the level should be reestablished by adding _____________. A. distilled water only B. sulfuric acid ... of sulfuric acid and distilled water D. a strong solution of sulfuric acid and distilled water
Last Answer : Answer: A
Description : The concentration of a salt solution in terms of mass by mass percentage is 20 and the mass of the solution is 550 g. Determine the mass of solute present in the solution. -Chemistry
Last Answer : Mass by mass percentage = 20% Mass of solution= 550gram Mass of solute/mass of solution multipled by 100 Therefore, 20/100 = 1/5 Hence, Mass of solute=Mass of solution/5 = 550gram/5 = 110Gram Therefore, The mass of solute is 110gm
Description : From separate solution of four sodium salt NaW, Nax, NaY and NaZ had pH 7.0 , 9.0 , 10 . 0 and 11.0 respectively , when each solution was 0.1 M , the
Last Answer : From separate solution of four sodium salt NaW, Nax, NaY and NaZ had pH 7.0 , 9.0 , 10 . 0 and 11.0 ... acid is :- A. HW B. HX C. HY D. HZ
Description : `50 mL` of `0.1 M` solution of a salt reacted with `25 mL` of `0.1 M` solution of sodium sulphite. The half reaction for the oxidation of sulphite ion
Last Answer : `50 mL` of `0.1 M` solution of a salt reacted with `25 mL` of `0.1 M` solution of sodium ... was `3`, what would be the new oxidation number of metal:
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)
Description : 6 to 10% solution of acetic acid is used as a preservative for various food items. It is commonly known as?
Last Answer : Vinegar
Description : Platinum and silver are corroded by (A) Caustic soda solution (B) Phosphoric acid (C) Sulphuric acid (10%) (D) None of these
Last Answer : (D) None of these
Description : Gunmetal and bronze are not corroded by the action of (A) Wet chlorine (B) Synthetic detergent solution (C) Hydrochloric acid (10%) (D) Nitric acid (< 25%
Last Answer : (B) Synthetic detergent solution
Description : What would you need to do to calculate the molarity of 0.2kg of nail in3kg of water?
Last Answer : Feel Free to Answer
Description : What is the molarity of a soloution which contains 22.41 grams of NaCl in 50.0 mL of soloutuon?
Last Answer : 0.4482
Description : Ammonium salts decompose quite readily on heating : (i) Ammonium salt of weak oxidizing anion (e.g. `Cl^(-), CO_(3)^(2-), SO_(4)^(2-)`) `overset("heat
Last Answer : Ammonium salts decompose quite readily on heating : (i) Ammonium salt of weak oxidizing anion (e.g. `Cl^(-), CO_(3) ... N_(2)` D. `NO, NH_(3), N_(2)O`
Description : A 0.22 M solution of lactic acid (pKa 3.9) was found to contain 0.20 M in the dissociated form and 0.02 M undissociated form, the pH of the solution is (A) 2.9 (B) 3.3 (C) 4.9 (D) 5.4
Last Answer : Answer : C
Description : How many angles letter M ha?
Last Answer : It has 3 interior angles
Description : In Indo-gangatic plains, rice-wheat cropping system covers about (A) 5 m ha (B) 10 m ha (C) 15 m ha (D) 20 m ha
Last Answer : (B) 10 m ha