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Q5: Chlorophyll, the green pigment in leaves, has the formula C55H72MgN4O5 . If 0.0011 g of...

Q5: Chlorophyll, the green pigment in leaves, has the formula C55H72MgN4O5 . If 0.0011 g of Mg is available to a plant for chlorophyll synthesis, how many grams of carbon will be required to completely use up the magnesium?

Q6: A sample of liquid with mass of 8.657 g was decomposed into its elements and gave 5.217 g carbon, 0.9620 g hydrogen, and 2.478 g of oxygen. What is the percentage composition of this compound?

Q7: 2.57 g of sample if a compound is composed of only tin and chlorine was found to contain 1.17 g tin. What is the compound’s empirical formula?

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