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3 years ago

If a sample of a substance contains 9.03 x 1023 representative particles, how many moles does this represent?

Chemistry

1 answer:

GaryK [48]3 years ago

5 0

I believe its 10^23 u r saying
then no. of moles= 9.03*10^23/6.02*10^23=1.5mole

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Keith_Richards [23]

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8 0

2 years ago

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11111nata11111 [884]

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3 years ago

How many molecules are in 41.8 g of sulfuric acid

Anton [14]

Answer

× 10²³ molecules are in 41.8 g of sulfuric acid

Explanation

The first step is to convert 41.8 g of sulfuric acid to moles by dividing the mass of sulfuric acid by its molar mass.

Molar mass of sulfuric acid, H₂SO₄ = 98.079 g/mol

$Mole=\frac{Mass}{Molar\text{ }mass}=\frac{41.8\text{ }g}{98.079\text{ }g\text{/}mol}=0.426187053\text{ }mol$

Finally, convert the moles of sulfuric acid to molecules using Avogadro's number.

Conversion factor: 1 mole of any substance = 6.022 × 10²³ molecules.

Therefore, 0.426187053 moles of sulfuric acid is equal

$\frac{0.426187053\text{ }mol}{1\text{ }mol}\times6.022×10²³\text{ }molecules=2.57\times10^{23}\text{ }molecules$

Thus, 2.57 × 10²³ molecules are in 41.8 g of sulfuric acid.

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5 months ago

Which out of two has stronger forces of attraction sugar or water very sort answer

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2 years ago

When an atom of calcium (Ca) forms an ion by losing two electrons, what is the ion’s type and charge?

Svetllana [295]

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2 years ago

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