Quantity Question

Hi, trying to wrap my head around this quantity question.
How much sodium hydroxide is required to manufacture 7.8 g of sodium sulfate?
It's from the equation
sodium hydroxide + sulfuric acid -> sodium sulfate + water
And if you could explain how to do this it'd be great, thanks in advance.

Reply 1

RMNDK

3

Original post by usingnamespace

Hi, trying to wrap my head around this quantity question.
How much sodium hydroxide is required to manufacture 7.8 g of sodium sulfate?
It's from the equation
sodium hydroxide + sulfuric acid -> sodium sulfate + water
And if you could explain how to do this it'd be great, thanks in advance.

Write the chemical equation so that you can figure the molar ratio between NaOH and Na₂SO₄

Calculate the moles in 7.80g of Na₂SO₄and, using the ratio, calculate the moles of NaOH.

Then calculate the mass.

Tada. All that calculating part is for you.

Reply 2

langlitz

17

Original post by usingnamespace

Hi, trying to wrap my head around this quantity question.
How much sodium hydroxide is required to manufacture 7.8 g of sodium sulfate?
It's from the equation
sodium hydroxide + sulfuric acid -> sodium sulfate + water
And if you could explain how to do this it'd be great, thanks in advance.

Spoiler

(edited 8 years ago)

Reply 3

usingnamespace

OP

5

Original post by RMNDK

Write the chemical equation so that you can figure the molar ratio between NaOH and Na₂SO₄

Calculate the moles in 7.80g of Na₂SO₄and, using the ratio, calculate the moles of NaOH.

Then calculate the mass.

Tada. All that calculating part is for you.

I did manage to work this out on my own, to which I got 4.4g, but thankyou for the help! Had an extremely bad teacher for C2!