Question

NaOH + HCl → NaCl + H2O

What mass of water forms when 2.75 × 10–4 mol NaOH reacts completely?

2.75 × 10–4 mol NaOH = ___ g H2O

Answer 1

You can see from the reaction that for every mole of NaOH consumed, a mole of H2O is produced. Therefore is 2.75 x 10^(-4) mol of NaOH are going in, just as many moles of H2O are coming out.

If you know moles of H2O, you can easily find the mass by multiplying by the molar mass of H2O.

Answer 2

Would you mind just giving me the answer? Lol. Chemistry is literally another language to me so I dont think i will ever understand. Haha, Thank you for your help.

Answer 3

I don't want to just give away the answer! Just read my answer carefully, and if there's something you don't understand then ask!

Answer 4

mole ratio between NaOH and H2O is 1:1 thus mole is also same
meaning mole of NaOH equals to mole of water
now
you have mole, and from periodic table you can calculate molecular mass of water
use the formula
mole = mass / molecular mass
rearrange the formula to make mass as subject of the formula
mass = mole x molecular mass
u have both mole & molecular mass of water
thus do simple multiplication and get your final result in grams for water formed