A sachet of instant coffee (2.00 g coffee / sachet ) was poured into a cup of water (236 mL). What is the mole fraction of water?

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Q: Cr₂O7²- + 3H₂S+ 8H+→→→2Cr³+ + 3S+ 7H₂0 In the above reaction, the oxidation state of chromium…

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