1. Given, CaCO3(s) + HCl(aq) SCaCl(aq) + CO2(g) + H2O(1) If 10 g of pure CaCO3 is added in solution containing 1.26 <1023
molecules of HCI.
D) Calculate the mass of CaCl2a formed in the reaction. [1]
ii) What is importance of limiting reactants?
iii) Calculate the number of moles of excess reactant left over
unreacted and water molecules produced.
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iv) What mass of NaOH required to absorbCO2 gas produce at
20°C and 750 mm Hg pressure?
G
G​

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

if you're asking what comes out, it's steam.