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Vanyuwa [196]
3 years ago
7

How many grams are in8.2'10^22 molecules of N2i6​

Chemistry
1 answer:
maks197457 [2]3 years ago
4 0

Explanation:

Hope the picture with the working out helps :)

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Some items, such as rubber, float on the water, while some items, such as gold, sink in
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If an item is less dense, it floats on the water.

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We know this since the more dense something it usually is heavier than if it was less dense. Which ways it down resulting to it sinking.

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In the lake that the rivers lead, water molecules evaporate into the sky and form clouds. In the sky, these water droplets condense and form clouds that will eventually rain.
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7 0
3 years ago
Determine whether each description represents a genotype or a phenotype.
ANEK [815]

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phenotype,phenotype,genotype,genotype,

genotype

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. How many milliliters of 0.20 M HCl are needed to exactly neutralize 40. milliliters of 0.40 M KOH
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Answer:

V_{HCl}=80mL

Explanation:

Hello,

In this case, for the given reactants we identify the following chemical reaction:

KOH+HCl\rightarrow KCl+H_2O

Thus, we evidence a 1:1 molar ratio between KOH and HCl, therefore, for the complete neutralization we have equal number of moles, that in terms of molarities and volumes become:

n_{HCl}=n_{KOH}\\\\M_{HCl}V_{HCl}=M_{KOH}V_{KOH}

Hence, we compute the volume of HCl as shown below:

V_{HCl}=\frac{M_{KOH}V_{KOH}}{M_{HCl}} =\frac{0.40M*40mL}{0.20M} \\\\V_{HCl}=80mL

Best regards.

5 0
3 years ago
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