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OpenStudy (anonymous):
Determine the mass of AgNO3 needed to convert 2.33g of Na2CO3 to Ag2CO3. What is the mass of Ag2CO3 formed?
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OpenStudy (anonymous):
Molar mass of Na2CO3 is 106 g/mol. So the amount of Na2CO3 used is: 2.33g/106(g/mol)=0.022mol. The reaction requires twice the amount of AgNO3 as Na2CO3. So 0.044mol of AgNO3 needed. The molar mass of AgNO3 is 170g/mol. The mass needed is therefore 170(g/mol)*0.044 = 7.48g. <- answer to first question. Second question: First, how much Ag2CO3 is formed? This is the same as the amount of Na2CO3 added, which is 0.022mol. Ag2CO3 has a molar mass of 276g/mol. The mass of formed Ag2CO3 is therefore: 0.022mol*276g/mol=6.072g <- answer to second question
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