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

Answer:

Number of produced moles of carbondioxide is 0.113 mol.

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

$Number\,of\,moles=\frac{Given\,mass}{Molar\,mass}$

$Number\,of\,moles=\frac{12}{105.99}=0.113mol$

one mole of sodium carbonate produce one mole of carbondioxide.

0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.

$Mass\,of\,CO_{2}produced=Moles\times Molar\,mass$

$=0.113\times 44g/mol=4.98g$

Therefore, 0.113 mol of carbondioxide produced in flask 7.