Answer:
It's Al 3+ + 3e - → Al
Explanation:
Because three negatively charged electrons are needed to balance the three positive charges on the aluminum ion
Answer:
Rate of appearance of Bromine is 2.04 X 10-4 M·s−1
Explanation:
According to the balanced stoichiometric equation, for every 5 moles of Br- that react, 3 moles of Br2 is produced so they have the stoichiometric ratio of 5:3.
We can use this to calculate the rate of appearance of bromine since this is a direct relationship.
Br- : Br2
5 : 3
3.4 ✕ 10−4 M·s−1 : x
5x = 1.02 X 10-3 M·s−1
x = 2.04 X 10-4 M·s−1
Answer:
2000 mL
Explanation:
Given data:
Number of moles KMnO₄ = 6 mol
Molarity of solution = 3M
Volume of solution in mL = ?
Solution:
Formula:
Molarity = number of moles of solute / volume of solution in L
3 M = 6 mol / volume of solution in L
volume of solution in L = 6 mol/ 3 M
volume of solution in L = 2 L
Now we convert the L into mL:
1 L = 1000 mL
2 L × 1000 mL / 1 L
2000 mL
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