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4. A scientist goes to lab to synthesize Na3AlF6 via the balanced chemical reaction below. If they need 780. grams of Na3AlF6, and the overall

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4. A scientist goes to lab to synthesize Na3AlF6 via the balanced chemical reaction below. If they need 780. grams of Na3AlF6, and the overall percent yield is 45.4%, how much Al2O3 (in grams) is needed? You may assume NaOH and HF is in excess here. 6NaOH+Al2O3+12HF2Na3AlF6+9H2O

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