Common-Core/ Grade 10
Science MCQ Based On Calculate the amount of substance in moles
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Common-Core Grade 10 - 10 Calculate the amount of substance in moles
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Molar mass of O2 is 32g.
1 mole contains \\(6.022\\times10^23\\).
Moles of a solute per litres.
Check the options first.
Molar mass of Helium gas is 4g/mol.
Recall one mol of Na2O.
Mass/mass%= \\(Mass of solute\\div Mass of solutions\\times100\\)
Chemical formula of sucrose is C12H22O11.
Check which depends on the mass of the solvent.
Recall the formula of each given option.
Atomic mass of potassium is 39.
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