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OpenStudy (twinkles):
calculate the number of moles 1. 2.4g of He 2. 1.5kg of MgO 3. 250mg of sodium chloride 4. 40g of sulphur please help!hurry!
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OpenStudy (twinkles):
@marylou004
OpenStudy (anonymous):
Can anyone please help with this?
OpenStudy (anonymous):
n = m/M where: n - number of moles m - mass M - molar mass (from periodic table of elements)
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