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How many miles of sodium chloride present in250ml of a 0.50M Nacl solution |
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Answer» Answer: answer is 7.3125 Explanation: MOLARITY=0.50 M back. VOLUME=0.25 l to CALCULATE; mass of nacl in solution. proof; molarity= no.of moles \ volume of solution. no.of moles=0.5 m *0.25 l. no.of moles =0.125 moles. we know that,no of moles = given mass\molecular mass. molecular mass of nacl =23+35.5=58.5 g. sub formula, 0.125 = given mass\58.5 g. given mass =0.124*58.5. given mass=7.3125. |
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