Chemistry homework on moles and STP!!?
For the reaction:
2HCl + Na2CO3---> 2NaCl + H2O + CO2
179.2 liters of CO2 is collected at STP. How many moles of NaCL are also formed?
6. 8.0 moles
any help would be greatly appreciated :)
- Lexi RLv 710 years agoFavorite Answer
At STP (standard temperature and Pressure (0 deg Celcius and 1 atm) 1 mole of any ideal gas occupies a volume of 22.4 L
So moles gas at STP = volume / 22.4 L/mol
moles CO2 = 179.2 L / 22.4 L/mol
= 8.00 mol
The coefficients in the balanced equation show that
2 moles NaCl forms along with 1 mole CO2
So moles NaCl = 2 x moles CO2
= 16.0 mol
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- erlLv 44 years ago
First, in case you desire to transform liters to moles, you need to divide by 22.4, not multiply. then to transform the moles to grams, you need to divide that extensive form by the molar mass.