Answer:
because that is the last group the ones before it are more reactive im sorry if this not what you were looking for.
Answer: 0.52 L of 15 M will be used to prepare this amount of 0.52 M base.
Explanation:
But on diluting the number of moles remain same and thus we can use molarity equation.
(to be prepared)
where,
=concentration of stock solution = 15 M
= volume of stock solution = ?
= concentration of solution to be prepared = 0.52 M
= volume of solution to be prepared = 15 L
Thus 0.52 L of 15 M will be used to prepare this amount of 0.52 M base
Solid copper (II) hydroxide is heated to produce copper oxide.
Answer: 1031.33 kg of coke will produce 6400 kg of iron.
Explanation:
...(1)
...(2)
(1)+3 × (2)
...(3)
Mass of iron = 6400 kg = 6,400,000 g(1 kg = 1000 g)
Moles of iron =
According to reaction (3) , 4 moles of iron are produced from 3 moles of coke(C(s)) ,then 114,592.65 moles of iron will be produced from = moles of coke.
Mass of coke:
Hence, 1031.33 kg of coke will produce 6400 kg of iron.
It's already balanced since there is an equal number of elements on each side!