# chem

posted by .

The concentration (M) of HCl in a solution prepared by dissolving 5.5 g of HCl in 200 g of C2H6O
is ?????? M. The density of the solution is 0.79 g/mL.
A) 21 B) 0.93 C) 6.0 × 10-4 D) 1.72 E) 0.58

• chem -

M = mols/L
moles HCl = 5.5/molar mass HCl = ??
volume = mass of soln/density
mass of soln = 5.5 + 200 = 200.5 g.

• chem -

0.75

## Similar Questions

1. ### Chem

Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you
2. ### chemistry

What is the pH of a solution prepared by dissolving 6.0 g of HCl in water to make 415 mL of HCl solution?
3. ### chem 100

What is the pH of a solution prepared by dissolving 7.5 g HCl in water to make 415 mL of solution?
4. ### general chem

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution. (b) How many moles of KBr are present in 150 mL of a 0.275 M solution?
5. ### general chem

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution. (b) How many moles of KBr are present in 150 mL of a 0.275 M solution?
6. ### Chemistry105

1. (a) What is the molarity of a solution prepared by dissolving 4.315 g of NaOH in water to exactly 100 mL in a graduated flask?
7. ### Chemistry

A volume of 150mL of 0.35M HCl is to be prepared from 80% HCl stock solution. (Density of HCl = 1.191g/mL). Calculate the molarity of 80% HCl stock solution.
8. ### chemistry

2. A researcher is often required to prepare solutions in the lab. Typically, a lab provides a concentrated solution. This solution must be diluted to the proper concentration. Hydrochloric acid is a common stock solution that is typically …
9. ### Biochemistry

Determine the MAX amount of titrant you will possibly need for your titration. Your unknown solution has been prepared by dissolving btw 0.05-0.09mol of zwitterion form of the amino acid in 1L of ~ 0.1M HCl solution. you will titrate …
10. ### chemistry

A student prepares a solution of hydrochloric acid that is approximately 0.1 M and wanted to determine its precise concentration. A 25.00 mL portion of the HCl solution is transferred to a flask, and after a few drops of indicator …

More Similar Questions