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please post this type of questions in the homework section, filling the template

- Homework Statement
- This is not a homework question, therefore I don't know what to write here!

- Relevant Equations
- 20% of NaOH solution: The final solution should contain 20% NaOH. Let the final solution needed be 100 ml (=100 g). In that 20% should be caustic soda / NaOH. So 20 g of NaOH dissolved in 100 ml water will give 20% NaOH. 20 g/(100 g)=20% will be NaOH. Is it correct.

or

Adding 20 g NaOH and 80 g water will give 100 g solution. In this 20/(20+80)=20% will be NaOH. So is this the correct 20% NaOH solution?

thanks.

Rajini

Dear All,

To prepare 20% (w/w) NaOH solution is it okay to dissolve 20 g of NaOH in 80 g of water.

or

20 g of NaOH in 100 ml water?

Which is correct?

Thanks for your reply,

rajini.

PS: This is not a homework question, I am already 43 yrs!

To prepare 20% (w/w) NaOH solution is it okay to dissolve 20 g of NaOH in 80 g of water.

or

20 g of NaOH in 100 ml water?

Which is correct?

Thanks for your reply,

rajini.

PS: This is not a homework question, I am already 43 yrs!

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