Answer to Question #109380 in General Chemistry for Rodaina

General Chemistry

Question #109380

5. How would a lab assistant make 20 g of a 10% w/w NaOH solution?

Expert's answer

10% at 20g= 2 g of NaOH

Because NaOH reaction with air (example)

18 g water and 2 g NaOH solved in it.

but w/w solutions is Not an accurate measurement.

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. 4. How many grams of NaOH are in 8 dL of a 30% w/v solution of NaOH?
2. 3. A specialist takes 10 mcL of a 2% solution and dilutes it to 50 mcL by adding it to water. Find
3. 2. A solution with a concentration of 20% is diluted 1/10 and then again by 1/10. Find the final pe
4. 1. Five parts serum is added to 10 parts water. Find the solution dilution.
5. The Ka of a monoprotic weak acid is 0.00719. What is the percent ionization of a 0.181 M solu
6. If the Ka of a monoprotic weak acid is 2.9×10−6, what is the pH of a 0.31M solution of th
7. Given that Kw for water is 2.4×10−14 at 37C, calculate the pH of a neutral aqueous solution