When 2.5000 g of an oxide of mercury, (hg soy) is decomposed into the elements by heating, 2.405 g of mercury are produced. calc
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Answer: 136 g of must be reacted to inflate an air bag to 70.6 L at STP.
Explanation:
Using ideal gas equation:
P= pressure of nitrogen gas = 1 atm (at STP)
V =volume of nitrogen gas = 70.6 L
n = number of moles of nitrogen gas = 1 atm (at STP)
R = gas constant = 0.0821 Latm/Kmol
T = temperature of nitrogen gas = 273 K (at STP)
For the balanced chemical reaction:
3 moles of nitrogen are produced by = 2 moles of
3.14 moles of nitrogen are produced by = moles of
Mass of = Moles × Molar mass = 2.09 mole × 65 g/mol = 136 g