# Determining flow rates- volumetric versus mass flow rates

A flow meter reads 10 liters per minute. The flow is comprised of a 7% solution of water and Chemical A.

The % solution is known by Wgt Chemical A/Wgt Chemical A + Wgt of Water

Chemical A has a given specific gravity of 2.8 as compared to water...the MW of Chemical A is given as 435 g/mol

Therefore, for every 1 liter per minute of volume flow:

1) What is the mass of Chemical A in that 1 liter

2) What is the mass of water in that 1 liter

3) What is the density of the combined solution of water and Chemical A

https://brainmass.com/chemistry/chemical-kinetics/determining-flow-rates-volumetric-versus-mass-flow-rates-248419

#### Solution Preview

Please see the attachment.

We start with the ratio of weights:

(1.1)

Where is the weight of the substance, is the weight of water and q is the concentration (in our case, q=0.07)

Next, we have the relations between the specific gravities of the chemical to water:

(1.2)

In our case, p=2.8

The relation between mass (W) density () ...

#### Solution Summary

Volumetric versus mass flow rates are analyzed for 1 liter per minute of volume flow. The mass of chemical A and the mass of the water is determined.