Question

A E S 21 AaBbCcDd AaBbCcDd AaBbC AaBbcc AaB AaBbCD 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle Paragraph Styles known substance (substance A) unknown substance (substance B) grams grams 4L ISIP by mole ratio liters Moles Moles 72. by 224LOSTP liters Use coeficients from balanced chemical equation 6.02.10 021 particles Answer the following questions pertaining to the following equation. 4Ga + 352 → 2Ga2S3 1. How many moles of Sulfur are needed to react with 12.5 moles of Gallium 2. How many moles of Sulfur are needed to react with 100.0 grams of Gallium? 3. How many grams of Gallium burned if 200.0 grams of aluminum oxide formed? 4. How many grams of Gallium Sulfide would form if 20.5 moles of Gallium burned?

I previously answered with the below and got it wrong. I was asked to redo my work. please help me with step by step answers. thank you!

Answer 1

4 Ga + 35₂ 2 Ga₂S₃ 3 mole of S₂ is required to react with 4 moles of Ga. I mole of Ga needs a 3 mole of S₂ 12.5 moles of Ga need = 3 x12.5 moles of S - 375 = 9.375 moles а 1608 бро. moles of Ga = 100 = 10 moles. I mole of Ga needs = 3 mole of S₂ 10 male of Ga need 3 x 10 of Sz = 1.07 moles.

like aluminium 3. It is incorrect. There is nothing oxide in the question. 12. 4 mole of Ga produces = 2 moles of Gaz 3 Imole of Ga produces: ļ moles of Grays 20.5 mole of a will produce = 4 x 20.5 = 10.25 moles of GQ, 53 mass of Ga, Sz= molesx molar mass 10.25x 236 = 2419 grams = 2.419 kg
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