Question

A. What volume of a 2.09M solution of NaClO contains 4.98g of NaClO? ____mL B. What...

A. What volume of a 2.09M solution of NaClO contains 4.98g of NaClO?

____mL

B. What volume of 0.551M NH4Br can be prepared from 1.08L of 3.46M NH4Br?

Your answer should have three significant figures.

______L

Homework Answers

Answer #1

A) Number of moles of NaClO = 4.98 g / 74.44 g/mol = 0.0669 mol

Molarity = number of moles / volume of solution in L

2.09 M = 0.0669 / volume of solution in L

volume of solution in L = 0.0669 / 2.09 = 0.0320 L

1L = 1000 mL

0.0320 L = 32.0 mL

Therefore, the volume of solution = 32.0 mL

B) Number of moles of NH4Br = molarity * volume of solution in L

Number of moles of NH4Br = 3.46 * 1.08 = 3.74 mole

Molarity = number of moles / volume of solution in L

0.551 = 3.74 / volume of solution in L

volume of solution = 3.74 / 0.551 = 6.79 L

Therefore, the volume of solution = 6.79 L

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What is the final volume (L) of each of the following diluted solutions? Part A a...
What is the final volume (L) of each of the following diluted solutions? Part A a 4.0 % (m/v) KOH solution prepared from 10.0 mL of a 20.0 % KOH solution Express your answer using two significant figures. Part B a 1.6 M HCl solution prepared from 25 mL of a 6.0 M HCl solution Express your answer using two significant figures. Part C a 8.0 M NaOH solution prepared from 50.0 mL of a 12 M NaOH solution Express...
Part A Calculate the mass percent (m/m) of a solution prepared by dissolving 52.18 g of...
Part A Calculate the mass percent (m/m) of a solution prepared by dissolving 52.18 g of NaCl in 152.8 g of H2O. Express your answer to four significant figures. Part B Vinegar is a solution of acetic acid in water. If a 185 mL bottle of distilled vinegar contains 26.5 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures. Part C Calculate the mass/volume percent (m/v) of 24.0 g...
A). To what volume should you dilute 121 mL of an 8.00 M CuCl2 solution so...
A). To what volume should you dilute 121 mL of an 8.00 M CuCl2 solution so that 52.0 mL of the diluted solution contains 4.44 g CuCl2? B). Silver nitrate solutions are often used to plate silver onto other metals. What is the maximum amount of silver (in grams) that can be plated out of 5.1 L of an AgNO3 solution containing 3.4 % Ag by mass? Assume that the density of the solution is 1.01 g/mL. Express your answer...
What would the concentration of the resulting glucose solution be if 200 mL of a 22...
What would the concentration of the resulting glucose solution be if 200 mL of a 22 % (m/v) glucose solution were diluted to a final volume of 1 L with distilled water? Express your answer using one significant figure. How many liters of a 0.85 % (m/v) NaCl solution can be prepared from 700 mL of a 9.5 % (m/v) stock solution? Express your answer using two significant figures.
An aqueous solution contains 4.3% NaCl by mass. Part A Calculate the molality of the solution....
An aqueous solution contains 4.3% NaCl by mass. Part A Calculate the molality of the solution. Express your answer using two significant figures. Part B Calculate mole fraction of the solution. Express your answer using two significant figures.
What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a...
What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a density of 1.179 g/mL, should be used to make 4.85 L of an HCl solution with a pH of 1.90? Express your answer to two significant figures and include the appropriate units.
Chemistry Question Part a) A solution of hydrofluoric acid contains 48.0% HF by mass and has...
Chemistry Question Part a) A solution of hydrofluoric acid contains 48.0% HF by mass and has a density of 1.15 g/mL at 25 °C. What volume of this solution should be used in a reaction requiring 1.25 mol HF? (Be sure to indicate the appropriate number of significant figures in the final answer.) Part b) What volume of 1.25 M HF(aq) must be diluted with water to prepare 0.500 L of 0.1 M HF(aq)? ​
An aqueous NaCl solution is made using 111 g of NaCl diluted to a total solution...
An aqueous NaCl solution is made using 111 g of NaCl diluted to a total solution volume of 1.10 L . Part A Calculate the molarity of the solution. Express your answer using three significant figures. Part B Calculate the molality of the solution. (Assume a density of 1.08 g/mL for the solution.) Express your answer using two significant figures. Part C Calculate the mass percent of the solution. (Assume a density of 1.08 g/mL for the solution.) Express your...
Calculate the volume in liters of a 0.0015/molL calcium sulfate solution that contains 25.0g of calcium...
Calculate the volume in liters of a 0.0015/molL calcium sulfate solution that contains 25.0g of calcium sulfate CaSO4 . Be sure your answer has the correct number of significant digits.
A) HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO...
A) HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.087 M in NaClO at 25 °C? The hint is: Na is a spectator ion in this situation. Start by finding the Kb of ClO–. B) A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT