Question

Part A Calculate the molarity of a solution prepared by dissolving 12.9 g of Na2CrO4 in...

Part A Calculate the molarity of a solution prepared by dissolving 12.9 g of Na2CrO4 in enough water to produce a solution with a volume of 670. mL .

Express the molarity to three significant digits

Part B

How many moles of KBr are present in 160. mL of a 0.127 M solution?

Express the amount in moles to three significant digits

Part C

How many milliliters of 6.7 M HCl solution are needed to obtain 0.19 mol of HCl?

Express the volume in milliliters to two significant digits.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Tb

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How many milliliters of 5.5 M HCl solution are needed to obtain 0.14 mol of HCl?...
How many milliliters of 5.5 M HCl solution are needed to obtain 0.14 mol of HCl? Express the volume in milliliters to two significant digits How many moles of KBr are present in 140. mL of a 0.128 M solution? Express the amount in moles to three significant digits.
(a) Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water...
(a) Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form 550 mL of solution. Give the answer again with the correct amount of significant figures. (b) How many moles of KMnO4 are present in 50.0 mL of a 0.0850 M solution? Give the answer again with the correct amount of significant figures. (c) How many milliliters of 11.6 M HCl solution are needed to obtain 0.205 mol of HCl? Give the answer...
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) Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water...
(a) Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form 650 mL of solution.     Answer- Answer with correct sig figs- (b) How many moles of KMnO4 are present in 25.0 mL of a 0.0950 M solution? Answer- Answer with correct sig figs- (c) How many milliliters of 12.6 M HCl solution are needed to obtain 0.205 mol of HCl? Answer- Answer with correct sig figs-
A) A solution is prepared by dissolving 50.4 g sucrose (C12H22O11) in 0.332 kg of water....
A) A solution is prepared by dissolving 50.4 g sucrose (C12H22O11) in 0.332 kg of water. The final volume of the solution is 355 mL. For this solution, calculate the molarity. Express the molarity in units of moles per liter to three significant figures. B) Calculate the molality. Express the molality in units of moles per kilogram of solvent to three significant figures. C) Calculate the percent by mass.Express the percent by mass to three significant figures. D) Calculate the...
A solution was prepared by dissolving 0.1927 g of HgO (see the Primary Standards table) in...
A solution was prepared by dissolving 0.1927 g of HgO (see the Primary Standards table) in 20 mL of water containing 4 g of KBr. Titration with HCl required 17.96 mL to reach a phenolphthalein end point. Calculate the molarity of the HCl.
Part A-Calculate the mass percent (m/m) of a solution prepared by dissolving 45.05 g of NaCl...
Part A-Calculate the mass percent (m/m) of a solution prepared by dissolving 45.05 g of NaCl in 176.2 g of H2O. Part B- Vinegar is a solution of acetic acid in water. If a 125 mL bottle of distilled vinegar contains 23.2 mL of acetic acid, what is the volume percent (v/v) of the solution? Part C- Calculate the mass/volume percent (m/v) of 24.0 g NaCl in 52.5 mL of solution. Part D- Calculate the molarity (M) of 156.6 g...
A solution was prepared by dissolving 26.0 g of KCl in 225 g of water. The...
A solution was prepared by dissolving 26.0 g of KCl in 225 g of water. The composition of a solution can be expressed in several different ways. Four of the most common concentration units are defined as follows:. mass %=mass of componenttotal mass of solution×100%; mole fraction (X)=moles of componenttotal moles of solution; molarity (M)=moles of soluteliters of solution; molality (m)=moles of solutemass of solvent (kg) Part A Calculate the mass percent of KCl in the solution. Part B Calculate...
a.) What is the molarity of a solution prepared by dissolving 47.1 grams of Ca(OH)2 in...
a.) What is the molarity of a solution prepared by dissolving 47.1 grams of Ca(OH)2 in a total solution volume of 400.0 mL? b.) What volume of the solution in part (a) is required to prepare 5.00 L of 0.100 M Ca(OH)2? c.) The dilute solution in part (b) is used in a titration experiment to neutralize 35.00 mL of an HClO solution. 24.48mL of 0.100 M Ca(OH)2 are required to fully neutralize the hypochlorous acid. Give the balanced chemical...
A strontium hydroxide solution is prepared by dissolving 10.40 g of Sr(OH)2 in water to make...
A strontium hydroxide solution is prepared by dissolving 10.40 g of Sr(OH)2 in water to make 47.00 mL of solution.What is the molarity of this solution? Express your answer to four significant figures and include the appropriate units. SubmitMy AnswersGive Up Part B Next the strontium hydroxide solution prepared in part (a) is used to titrate a nitric acid solution of unknown concentration.Write a balanced chemical equation to represent the reaction between strontium hydroxide and nitric acid solutions. Express your...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT