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please answer both and show work. thank you. 2. Aluminum sulfate reacts with sodium hydroxide to give aluminum hydroxide and sodium sulfate. How many grams

please answer both and show work.

thank you.

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2. Aluminum sulfate reacts with sodium hydroxide to give aluminum hydroxide and sodium sulfate. How many grams of aluminum hydroxide are formed when 4.73 moles of aluminum sulfate are reacted with an appropriate amount of sodium hydroxide? 13. Formaldehyde CH2O is a toxic gas with a pungent odor. Calculate the mass percentages of elements in formaldehyde. Give the answer to three significant figures

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