A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 87.0 mL. The liquid solvent has a mass of 49.7 g and a density of 0.865 g/mL. Determine the mass of the solid given its density is 2.75 g/mL.

The mass of solid is 81.24 grams

Explanation:

We are given:

Volume of solid and liquid together = 87.0 mL

To calculate density of a substance, we use the equation:

     ......(1)

Density of liquid solvent = 0.865 g/mL

Mass of liquid solvent = 49.7 g

Putting values in equation 1, we get:

Density of solid = 2.75 g/mL

Volume of solid = [87.0 - 57.46] mL = 29.54 mL

Putting values in equation 1, we get:

Hence, the mass of solid is 81.24 grams

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.