How many moles of each element are in one mole of Sr(HCO3)2?
2 answers:
Explanation:
Since it is given that the compound is one mole.
So, the elements present in it are strontium, hydrogen, carbon and oxygen.
Therefore, moles of elements present in are as follows.
Number of strontium atom is 1.
Number of hydrogen atoms are 2.
Number of carbon atoms are 2.
Number of oxygen atoms are = 6.
Thus, we can conclude that there is 1 mole of Sr element, 2 mole of H element, 2 mole of carbon atom, and 6 moles of oxygen atom.
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Answer:
2.01V ( To three significant digits)
Explanation:
First we show the standard reduction potentials of Cu2+(aq)/Cu(s) system and Al3+(aq)/Al(s) system. We can clearly see from the balanced redox reaction equation that aluminium is the anode and was the oxidized specie while copper is the cathode and was the reduced specie. This observation is necessary when substituting values of concentration into the Nernst equation.
The next thing to do is to obtain the standard cell potential as shown in the image attached and subsequently substitute values of concentration and standard cell potential into the Nernst equation as shown. This gives the cell potential under the given conditions.
