Asample of a compound consisting only of copper and sulfur contains 88.39g of metal and 44.61g of nonmetallic. how many grams of copper are in a 5264kg sample of the compound? how many grams of sulfur? enter your answers in scientific notation.

The mass of copper is and mass of sulfur is

Explanation:

We are given:

Mass of metal (Copper) = 88.39 g

Mass of non-metal (Sulfur) = 44.61 g

Mass of compound = 88.39 + 44.61 = 133 g

Mass of given sample = 5264 kg = 5264000 g   (Conversion factor:  1 kg = 1000 g)

To calculate the mass of copper present in 5264 kg of sample, we use unitary method:

In 133 g of sample, the mass of copper is 88.39 g

So, in 5264000 g of sample, the mass of copper will be =

To calculate the mass of sulfur present in 5264 kg of sample, we use unitary method:

In 133 g of sample, the mass of sulfur is 44.61 g

So, in 5264000 g of sample, the mass of sulfur will be =

Hence, the mass of copper is and mass of sulfur is

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)