If, under certain conditions, 1.4 g of X reacts with 2.1 g of Z to produce 3.5 g of X2Z3, then, under different conditions, if 0.80 g of X reacts with 1.6 g of Z to produce 2.4 g of a new compound, what is the formula for this new compound?
Determine the density of air in grams per liter at a temperature of 20.5 deg. C and a pressure of 755 mmHg. Assume that air is approximately 20% O2 and 80% N2 (i.e. the mole fraction of oxygen is 0.20 and the mole fraction of nitrogen is 0.80)
if you live in a tent whose inside volume is 203 m3 and the temperature in a cold morning is 15.o degree C but becomes 20.0 degees C in the afternonn due to the sun's warming, how many cubic meter of air was forced out of the tent due to the sun's warming . Assume that the pressure in the tent remains constant.
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