Question

Write the chemical formula of potassium sulphate and calculate its formula unit mass.(atomic mass of potassium = 39u, sulphur = 32u, oxygen = 16u)

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Answer 1

Answer:

K2SO4 is formula

2(39)+32+4(16)

= 78+32+64u

=174u

formula unit mass= 174u

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Explanation:

formula unit mass = molar mass= atomic mass

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