Use the References to access important values if needed for this question. A sample that contains only Na2CO3 and K2CO3 weighs 0.9596g. When it is dissolved in excess acid, 0.3519g of carbon dioxide is liberated. What percentage of Na2CO3 did the sample contain? Assume all the carbon originally present is converted to carbon dioxide. MasspercentNa2CO3= 5 quebben atlemststs remaining