Free Printable Questionnaire 6 Chem (11th)

1.

$\frac{n_{\ solute}}{L_{\ solvent}}$

a)

Molarity

b)

Molality

c)

None of the above

2.

$\frac{n\ _{solute}}{kg_{\ solvent}}$

a)

Normality

b)

Molality

c)

None of the above

3.

$\frac{eq_{\ solute}}{L\ _{solution}}$

a)

Molarity

b)

Normality

c)

None of the above

4.

$\frac{eq\ _{solute}}{L\ _{solvent}}$

a)

Normality

b)

Molality

c)

None of the above

5.

$\frac{n\ _{solute}}{L\ _{solution}}$

a)

Molarity

b)

Normality

c)

None of the above

6.

$\frac{mass\ _{solute}}{mass\ _{solution}}\cdot100$

a)

% w/w

b)

% w/v

c)

None of above

7.

$\frac{mass\ _{solute}}{volume\ _{solution}}\cdot100$

a)

% v/v

b)

% w/v

c)

None of the above

8.

$\frac{volume\ _{solute}}{volume\ _{solution}}\cdot100$

a)

%v/v

b)

%v/w

c)

None of the above

9.

$\frac{mass\ _{solute}}{mass\ _{solvent}}\cdot100$

a)

% w/w

b)

% w/v

c)

None of the above

10.

$\frac{Molecular\ Weight}{Valence}$

a)

Equivalent Weight

b)

Number of equivalents

c)

None of the above

11.

What is the E_Wof H₃PO₄?

a)

98 g/eq

b)

32,67 g/eq

c)

47,5 g/eq

12.

What is the E_W of Ca(OH)₂ ?

a)

74 g/eq

b)

37 g/eq

c)

24,67 g/eq

13.

How many equilavents are in 200g of Al(OH)₃ ?

a)

7,69 eq

b)

2,56 eq

c)

5,12 eq

14.

How many equivalents are in 440g of HCl ?

a)

24,11 eq

b)

12,05 eq

c)

36,15 eq

15.

Calculate the M of a solution 3% w/w of NaCl if its density is 1.03 g/mL?

a)

0,000539 mol/L

b)

5,39 mol/L

c)

0,539 mol/L

16.

Calculate de %w/v of a solution 6N of H₂SO₄ ?

a)

29400 %

b)

2,9 %

c)

29,4 %

17.

Calculate the %w/v of a solution 45% w/w with density 1,4g/mL

a)

63 %

b)

0.63 %

c)

6,3 %

18.

Molality is used when

a)

temperature is constant

b)

temperature is variable

c)

temperature is not variable

19.

Normality and Molarity are not used when temperature is variable because

a)

Temperature affect the mass of solute

b)

Temperature affect the volume of solution

c)

Temperature affect the mass of solvent

20.

Calculate the m of a solution 31% w/v of NaOH with density 1,2 g/mL

a)

7,75 mol/kg

b)

6,45 mol/kg

c)

8,71 mol/kg

Questionnaire 6 Chem (11th)

Total questions: 20

Worksheet time: 26mins

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