HARD
10th ICSE
IMPORTANT
Earn 100

5.8 g of NaCl and 25.2 g of AgNO3 are mixed together in aqueous solution form. What is the mass of silver chloride  (AgCl) ppt. formed according to the equation: 

AgNO3 (aq)+NaCl(aq)  AgCl (s)+NaNO3(aq)

(Ag=108, N=14, O=16, Na=23, Cl=35.5)

Important Questions on Mole Concept and Stoichiometry

EASY
10th ICSE
IMPORTANT

The equation for the burning of octane is:

2C8H18+25O2  16CO2+18H2O

How many moles of carbon dioxide are produced when one mole of octane burns?

EASY
10th ICSE
IMPORTANT

The equation for the burning of octane is:

Question Image

What volume, at S.T.P; is occupied by 8 moles of CO2.

EASY
10th ICSE
IMPORTANT

The equation for the burning of octane is:

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If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning two moles of octane?

EASY
10th ICSE
IMPORTANT

The equation for the burning of octane is:

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What is the empirical formula of octane?

 

 

 

MEDIUM
10th ICSE
IMPORTANT

The reaction given below takes place only in the gaseous state.

4N2O+CH4  CO2+2H2O+4N2

If all the volumes are measured at the same temperature and pressure, calculate the volume of dinitrogen oxide required to give 150 cm3 of steam.

 

 

 

 

MEDIUM
10th ICSE
IMPORTANT

2C4H10+13O2  8CO2+10H2O. Calculate:

How many moles of oxygen would be needed for the complete combustion of 5.8 g of butane?

MEDIUM
10th ICSE
IMPORTANT

2C4H10 +13O2  8CO2+10H2O. Calculate:

What volume of CO2 at S.T.P is formed by complete combustion of 5.8 g of butane?

HARD
10th ICSE
IMPORTANT
Washing soda (Na2CO3.10H2O) of mass 57.2 g is heated. Calculate the mass of anhydrous sodium carbonate left.