# What mass and volume of #"25% orthophosphoric acid"# is required for a #1.0*mol*L^-1# solution of #H_3PO_4(aq)#?

##### 1 Answer

Jul 4, 2017

#### Answer:

You need to quote the

#### Explanation:

And http://pubs.acs.org/doi/abs/10.1021/ie50546a062 quotes

And so we can work out the concentration, by considering just a

We need

And so we need

And so we take a