Enter the weight of the sodium tartrate (mg) and the volume of the reagent (mL) into the Water Factor Calculator. The calculator will evaluate the Water Factor.

## Water Factor Formula

The following two example problems outline the steps and information needed to calculate the Water Factor.

**WF = WS / VR**

Variables:

- WF is the Water Factor (mg/mL)
- WS is the weight of the sodium tartrate (mg)
- VR is the volume of the reagent (mL)

## How to Calculate Water Factor?

The following steps outline how to calculate the Water Factor.

- First, determine the weight of the sodium tartrate (mg).
- Next, determine the volume of the reagent (mL).
- Next, gather the formula from above = WF = WS / VR.
- Finally, calculate the Water Factor.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

weight of the sodium tartrate (mg) = 30

volume of the reagent (mL) = 50

WF = WS / VR** **= ?