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Author Question: If 100. mL of 0.400 mol L-1 Na2SO4 is added to 200. mL of 0.600 mol L-1 NaCl, what is the ... (Read 114 times)

jasdeep_brar

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Question 1

How many millilitres of 0.200 mol L-1 FeCl3 are needed to react with an excess of Na2S to produce 1.38 g of Fe2S3 if the percent yield for the reaction is 65.0%?

3Na2S(aq) + 2FeCl3(aq) → Fe2S3(s) + 6NaCl(aq)

◦ 102 mL
◦ 51.1 mL
◦ 43.1 mL
◦ 25.5 mL

Question 2

If 100. mL of 0.400 mol L-1 Na2SO4 is added to 200. mL of 0.600 mol L-1 NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
◦ 0.534 mol L-1
◦ 0.667 mol L-1
◦ 1.40 mol L-1
◦ 1.00 mol L-1


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Marked as best answer by jasdeep_brar on Nov 18, 2019

6ana001

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jasdeep_brar

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Reply 2 on: Nov 18, 2019
Gracias!


brbarasa

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Reply 3 on: Yesterday
Wow, this really help

 

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