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1 year ago

How many moles of sodium sulfate will be formed if you start with 3.7 moles of sodium hydroxide?

Chemistry

1 answer:

Andrew [12]1 year ago

3 0

First check it's balanced or not

On both sides

Na=2
O=6
H=4
S=1

Its balanced

2 mol NaOH produces 1 mol Na_2SO_4
1 mol NaOH produces 0.5mol Na_2SO_4

3.7 mol produces=3.7(0.5)=1.850=1.8mol Na_2SO_4

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Balance and find out the coefficients of reactions and products

kolezko [41]

Answer:

2, 1, 1, 4.

Explanation:

Hello there!

In this case, for the given chemical reaction:

$H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+H_2O\\$

We can see how there is one SO4 on the left and two on the right, thus, we add a 2 in front of H2SO4:

$2H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+H_2O\\$

Next, since there are 8 atoms of hydrogen on the left and two on the right, we add a 4 in front of H2O to obtain:

$2H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+4H_2O\\$

Which is now balanced so the coefficients 2, 1, 1, 4.

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