158 kJ. if you convert into moles and then divide by the number on the table you should get this
Answer:
▪ Will it make a difference if we swap the anode and cathode in electroplating?
➢ If we interchange the two terminals after electroplating then the ions deposited on the <u>plate will move again towards their original position.</u>
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As the planet gets warmer, sea level rises for two reasons. First, warmer temperatures cause ice on land like glaciers and ice sheets to melt, and the melt water flows into the ocean to increase sea level. Second, warm water expands and takes up more space than colder water, increasing the volume of water in the sea.
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Answer:
C. The Theoretical yield of SiF4 is = 0.10
Explanation:
A. is TRUE
0.10 mol SiO2 * 4 mol HF/mol SiO2 = 0.40 mol HF which we do not have. Hence, HF is the limiting reagent
B. is TRUE
Some Sio2 will be left over is true since our limiting reagent is HF
C. is FALSE
0.020 mol HF * 1 mol SiF4 produced/ 4 mol HF = 0.05 mol SiF4 produced
Since the mol of SiF4 produced by the limiting reagent HF is given in the ratio of 1/4 it follows that 0.05 mol SiF4 will be produced and no 0.10 therefore statement is FALSE
D. is TRUE
Since HF is the limiting reagent is True that more HF will be needed to react completely with HF (exactly 0.20 mol HF) .
E. is TRUE
The theoreical yield of wate is 0.10 mol TRUE
0.05 mol SiO2 * 2 mol H2O/ mol SiO2 = 0.10 mol H2O