Which expression gives the mass percent of carbon in methanoic (formic) acid, hcooh? 12/46 x 10012/29 x 10016/46 x 1002/46 x 100

Explanation:

Molecular mass of methanoic acid (HCOOH) = 2*1 + 1*12 + 2*16

                                                                              =46 grams

mass of 1 mole of hydrogen atom = 1  g

mass of 1 mole carbon atom = 12 g

mass of 1 mole of oxygen atom = 16 g

mass of 1 mole of HCOOH = 46 g

1 mole of HCOOH molecule contains 1 mole of carbon atoms

means in 46 g of HCOOH there is 12 g of carbon atoms.

Percentage of carbon in methanoic acid =

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

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them