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Calculating Ar and Mr

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Chemistry

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Calculating Ar and Mr
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5 questions

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1.

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2 mins • 1 pt

Find the relative molecular mass of  H2SO4H_2SO_4  .

2.

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2 mins • 1 pt

Find the relative molecular mass of (NH4)2CO3\left(NH_4\right)_2CO_3  . Give your answer to 1dp

3.

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2 mins • 1 pt

Find the relative molecular mass of  MgCl2MgCl_2 
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4.

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2 mins • 1 pt

 Find the relative molecular mass of  Fe(NO3)3Fe\left(NO_3\right)_3 . Give your answer to 1dp

5.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Neon has 3 isotopes.

The percentage abundances of the isotopes are as follows:


Neon-20 90.92%,

Neon-21 0.26%

Neon-22 8.82%

Calculate the relative atomic mass of Neon

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