Question

Suppose you used excess sulfuric acid in all the flasks. How many moles of CO2would be released in flask 7? The molar mass of sodium carbonate is 105.99 g/mol.

Answer 1

Number of produced moles of carbondioxide is 0.113 mol.

Step-by-step explanation:

Excess of sulphuric acid is present.And the sodium carbonate is completely consumed.

Molar mass of sodium carbonate = 105.99g/mol

Given mass of sodium carbonate =12 g/mol

`Number\,of\,moles=(Given\,mass)/(Molar\,mass)`

`Number\,of\,moles=(12)/(105.99)=0.113mol`

one mole of sodium carbonate produce one mole of carbondioxide.

0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.

`Mass\,of\,CO_(2)produced=Moles* Molar\,mass`

`=0.113* 44g/mol=4.98g`

Therefore, 0.113 mol of carbondioxide produced in flask 7.