## Question

### Solution

Correct option is

16mL

N1V1 = N2V2 + N3V3

i.e.

or         0.25 V= 4   or  V3 = 16mL

#### SIMILAR QUESTIONS

Q1

If 1021 molecules are removed from 200 mg of CO2, then the number of moles of CO2 left are

Q2

The  number of gram molecules of oxygen in  molecules is

Q3

The molecular weight of O2 and SO2 are 32 and 64 respectively. If onelitre of O2 at 15oC and 750 mm contains N molecules, the number of molecules in two litres of SO2 under the same conditions of temperature and pressure will be

Q4

Five grams of each of the following gases at 87oC and 750 mm pressure are taken. Which of them will have the least volume?

Q5

Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (at wt. of Fe = 56) present in one molecule of haemoglobin is

Q6

In the reaction, 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + H2O (l), when 1 mole of ammonia and 1 mole of O2 are made to react to completion

Q7

50mL 10 N H2SO4, 25mL 12 N HCl and 40 mL 5 N HNO3 were mixed together and the volume of the mixture was made 1000mL by adding water. The normality of the resultant solution will be :

Q8

The number of atoms in 4.25 g of NH3 is approximately

Q9

One mole of calcium phosphide on reaction with excess of water gives

Q10

Number of g of oxygen in 32.2 g Na2SO4. 10H2O is