How many grams are in 4.78 liters of carbon dioxide gas (at stp)?
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0.178 grams

0.178 grams is the mass of one liter, so: The density of He is 0.178 g/L. Partial Pressure: A 10.0-L flask at a temperature of 300.0 K contains one mol of O2 gas, 2 moles of CO2 gas, and 7 moles of N2 gas.

Explanation:

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.