what would you use to measure an amount of solid sodium chloride(NaCl) crystals to add to a 30 mL solution?

Explanation:

I would use a  digital weighing scale to perform the operation

the following steps should be considered.

1. Turn ON the digital scale

2. Zero the scale(this eliminate any previous measurements or default readings)

3. Place the dish on the scale and note the initial  readings

4. Place the sample of NaCl to be measured and note the final reading

5. Subtract the initial reading from the final reading

 The final reading is the amount of NaCl