What is the percent yield for carbon dioxide if 10.0 grams of carbon monoxide yielded 12.81 grams of carbon dioxide from the reaction
below?
2 CO + O2 → 2 CO2

The percent yield : 81.5%

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

Reaction

2CO+O₂⇒2CO₂

mol CO(MW=28,01 g/mol)

mass CO₂ (theoretical)(MW=44,01 g/mol)

the percent yield :

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

the answer is 0.42 is that is an option. this question provides no info