A 17.0-g sample of HF is dissolved in water to give 200. mL of solution. The...

Question

Question

A 17.0-g sample of HF is dissolved in water to give 200. mL of solution. The concentration of the solution is:

Select one:

a. 0.17 M

b. 8.5 M

c. 4.2 M

d. 0.85 M

e. 0.09 M

science chemistry

Answer 1

Answer #1

Molar mass of HF=20.01g/mol

Mole=17/20.01=0.85 mole hf

Concentration= mole/volume in litre

Volume=0.2 litre

Concentration=0.85/0.2= 4.2 M

Answer C

Answer 2

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