Sodium bicarbonate (NaHCO3) decomposes into sodium carbonate, carbon dioxide, and water. What is the theoretical yield of carbon dioxide, in liters, if 128 g of sodium bicarbonate decomposes? What is the percent yield for the reaction if 11.2 L of carbon dioxide is actually obtained when 128 g of sodium bicarbonate decomposes?
2 NaHCO3 → Na2CO3 + CO2 + H2O
moles NaHCO3 =
theoretical moles CO2 =
theoretical liters CO2 =
percent yield =
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Answer : It is true.
Explanation : Proof is a device which is usually used for measuring the amount of alcohol present in alcoholic beverages. It involves a method of measuring the alcohol content of spirits where we can calculate the proof of a spirits product by multiplying the percent of alcohol by volume by the factor 2.
Example : If a spirit product that has a 40% alcohol content by volume in the beverage is 80 proof.
40 multiplied by 2 = 80.