# chemistry

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25cm3 of a solution of 0.1mol dm-3 NaoH reacts with 50cm3 of a solution of hydrochloric acid.What is the molarity of the acid

• chemistry -

Write the equation and balance it.
HCl + NaOH ==> NaCl + H2O

How many moles NaOH were used? moles = M x L = ??
Using the coefficients in the balanced equation, convert moles NaOH to moles HCl. You can see that it is a 1:1 ratio of NaOH to HCl; therefore, moles NaOH = moles HCl.
Then M HCl = moles HCl/L HCl. You know mole and L, solve for M.

• chemistry -

is there any way i can see an answer for this.. i have it as an a level chemistry question and im either having a mental block... or totallyyy don't get it ?

• chemistry -

this does not give the answer

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