What is the mass if the volume of the object is 75 cm3 and the density is 1.56 g/cm3?

Explanation:

We are asked to calculate the mass of an object. We are given the density and volume.  

Density is a substance's mass per unit volume. Therefore, the formula for calculating density is:

The density of the object is 1.56 grams per cubic centimeter. The volume of the object is 75 cubic centimeters. Substitute these values into the formula.

We are solving for the mass, so we must isolate the variable m. It is being divided by 75 cubic centimeters. The inverse operation of division is multiplication. Multiply both sides of the equation by 75 cubic centimeters.

The units of cubic centimeters cancel.

The mass of the object is 117 grams.

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sio2 (quartz)

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.