Question

How many molecules of H₂SO₄ weigh 9.8 × 10⁻¹⁰ grams ?

Answer 1

Answer:

1- First, you would find the number of moles.

You would need the relative formula mass for sulfuric acid for this

RFM of H2SO4 = (1*2)+32+(4*16)

RFM = 98

The formula for moles is

Moles = Mass / Mass of 1 mole

Moles = 98g / 98g

= 1 mole

2- Use Avogadro’s number to calculate the number of molecules.

Avogadro’s number = 6.022*10^23

Molecules = 1*6.022*10^23

Molecules = 6.022*10^23

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Answer 2

Answer:

Moles in 9.8g of sulphuric acid = 0.1 mole.

Moles in 9.8×10^-10of sulphuric acid = 0.1×10^-10mole.

Explanation:

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