Find mass of Na2CO3 if it's dissolved in 100ml of solution and also molarity is 3M

Find mass of Na2CO3 if it's dissolved in 100ml of solution and also molarity is 3M Calculate mole fraction of ethylene an aq. solution by mass. a/mot) P2'N3. Calculate fraction Of benzene in Goiütion•cantaining

Dear Student, Molarity = 3M means 3 moles of Na2CO3 are present in 1 liter. So, in 100 mL, (3/1000)*100 = 0.3 moles will be present. Molar mass of Na2CO3 = 106 g/mol. So, mass of 0.3 mole = 0.3*106 = 31.8 g. Answer 31.8 g of Na2CO3 is present in 100 mL of 3 M solution. Regards

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