A Solution of NaOH had a concentration of 40g/dm3. What mass of NaOH would there be in 250cm3 of the solution?

The two volumes in this question are in different units, so first we need to get both our volumes on the same page. remember 10cm = 1dm so 1000cm3 = 1dm3 (103cm3 = 13dm3)So now the question is "a solution of NaOH had a concentration of 40g/1000cm3 . what mass of NaOH would there in 250cm3 of the solution. Now we've set up a ratio. Because we know the concentration of the solution should remain constant, the ratio of the masses and volumes should remain constant as well. 250cm3/1000cm3 = 1/4. 1/4 * 40 = 10g NaOH

EH
Answered by Eme H. Chemistry tutor

10812 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

What is the difference between an alkene and an alkane?


What is the reaction between Zinc and Sulphuric Acid?


What mass of sodium hydroxide would need to be dissolved to make 100 cm^3 of a 0.5 mol dm^-3 solution? (3 marks)


An atom of iron is represented as 56 Fe 26 Give the number of protons, neutrons and electrons in this atom of iron.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences