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Svetradugi [14.3K]
3 years ago
5

. In lab we used 40 ml of 6M NaOH in making soap.How many moles of NaOH was in this volume?​

Chemistry
1 answer:
Firdavs [7]3 years ago
8 0

Hey there!:

Molarity of NaOH = 6 M or 6 mol/L

Volume of NaOH = 40 mL

Therefore , number of moles of NaOH:

40 mL  =( 6 mol / 1000 mL)*40=

6/ 1000 * 40 =>  0.24 moles of NaOH

Hope this helps!

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An old antacid commercial claimed that each tablet of their product could neutralize 47 times its mass in stomach acid. The acti
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Answer : The number of moles of HCl neutralize is, 0.00824 moles.

Explanation :

The given balanced chemical reaction is:

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First we have to calculate the moles of NaAl(OH)_2CO_3

\text{Moles of }NaAl(OH)_2CO_3=\frac{\text{Mass of }NaAl(OH)_2CO_3}{\text{Molar mass of }NaAl(OH)_2CO_3}

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Now we have to calculate the moles of HCl.

From the balanced chemical reaction we conclude that,

As, 1 mole of NaAl(OH)_2CO_3 react with 4 moles of HCl

So, 0.00206 mole of NaAl(OH)_2CO_3 react with 0.00206\times 4=0.00824 moles of HCl

Thus, the number of moles of HCl neutralize is, 0.00824 moles.

8 0
3 years ago
A block of wood has a height of 10 m, a length of 2 m, and a width of 2 m. What is the volume of the rock?
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4 years ago
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