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Fiesta28 [93]
2 years ago
10

The mole concept will most likely be used in

Chemistry
1 answer:
777dan777 [17]2 years ago
6 0

Answer:

determining how many ozone molecules are lost in the atmosphere

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An unknown diprotic acid (H2A) requires 44.391 mL of 0.111 M NaOH to completely neutralize a 0.58 g sample. Calculate the approx
Anna [14]

Answer:

M=235.42g/mol

Explanation:

Hello!

In this case, given this is an acid-base neutralization and we are considering a diprotic acid, we can write the following mole-mole relationship:

2n_{acid}=n_{base}

It means that the moles of acid can be computed given the volume and concentration of NaOH:

n_{acid}=\frac{M_{base}V_{base}}{2} =\frac{0.044391L*0.111mol/L}{2} \\\\n_{acid}=2.46x10^{-4}mol

It means that the approximate molar mass of the acid is:

M=\frac{m_{acid}}{n_{acid}} \\\\M=\frac{m_{acid}}{n_{acid}} =\frac{0.58g}{2.46x10^{-3}mol}\\\\M=235.42g/mol

Best regards!

5 0
2 years ago
During a storm, a tree fell over into a river. What might happen to this tree?
mina [271]
Break down in to tiny prices as the water hit the tree
6 0
2 years ago
PLEASE HELP<br><br> is this a chemical or physical change???
skad [1K]

Answer:

Chemical, cause physical are changes affecting the form of a chemical substance, but not its chemical composition. This doesn't affect the substance but the composition.

Explanation:

5 0
3 years ago
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How many atoms are in 3.0 moles of NA?
Vanyuwa [196]

Avogadro's number is the number of atoms in one mole of a substance. The number is 6.022 x 10^23 atoms/mol. So, if you have 1 mole of carbon atoms, there will be 6.022 x 10^23 atoms in that sample.

Hope this helps

5 0
3 years ago
Which is the best description of Darwin’s theory of evolution?
Leokris [45]

Answer:

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Explanation:

cfy.uhy.lobhyu444444444,.....xres;iiiiiiiiiiiuxoppppuuusxijnnhsxdrcfvtgbyhnuj

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2 years ago
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