Chemical reaction when chromium metal is immersed in an aqueous solution of cobalt(II)
1 answer:
The chemical equation for the reaction is
Chromium metal is higher in the reactivity series than cobalt. Thus, chromium will displace cobalt from solutions.
Therefore, the equation for the reaction between chromium metal and cobalt (II) chloride will be written as:
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<em>Chromium metal is immersed in an aqueous solution of cobalt(II) chloride. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter no reaction if no reaction occurs.</em>
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Answer:
There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
Explanation:
We can calculate the number of moles (η) of BeO as follows:
Where:
m: is the mass = 250 g
M: is the molar mass = 25.0116 g/mol
Hence, the number of moles is:
Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
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