74. How many litres of Co, at STP will be formedwhen 100 ml of 0.1M H,

1.	74. How many litres of Co, at STP will be formedwhen 100 ml of 0.1M H,SO, reacts with excessof Na,Co,?1) 224 2) 2.24 370.224 4) 5.6
Answer» The balanced chemical equation is H2SO4 + Na2CO3 >>> Na2SO4 + CO2 + H2O. The moles of: H2SO4 = 1 mole; Na2CO3 = 1 mole; CO2 = 1 mole molar mass of H2SO4 = 98 grams molar mass of Na2CO3 = 106 molarity of H2SO4 = 0.1M of H2SO4 volume = 100 mL. mass of H2SO4 = (0.1 mole / 0.100 L) * 98 g = 9.8 g 0.1 mole H2SO4 will react with 0.1 mole Na2CO3 to produce 0.1 mole of CO2 1 mole of CO2 - 44 grams so 0.1 mole of CO2 = 4.4 grams. 1 mole of CO2 at STP contains 22.4 liters so 0.1 mole of CO2 at STP has a volume of 2.24 liters

74. How many litres of Co, at STP will be formedwhen 100 ml of 0.1M H,SO, reacts with excessof Na,Co,?1) 224 2) 2.24 370.224 4) 5.6

Answer»

The balanced chemical equation is H2SO4 + Na2CO3 >>> Na2SO4 + CO2 + H2O.

The moles of: H2SO4 = 1 mole; Na2CO3 = 1 mole; CO2 = 1 mole

molar mass of H2SO4 = 98 grams

molar mass of Na2CO3 = 106

molarity of H2SO4 = 0.1M of H2SO4 volume = 100 mL.

mass of H2SO4 = (0.1 mole / 0.100 L) * 98 g = 9.8 g

0.1 mole H2SO4 will react with 0.1 mole Na2CO3 to produce 0.1 mole of CO2

1 mole of CO2 - 44 grams so 0.1 mole of CO2 = 4.4 grams.

1 mole of CO2 at STP contains 22.4 liters so 0.1 mole of CO2 at STP has a volume of 2.24 liters