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Zanzabum
3 years ago
14

What is the correct way to write the molar mass of iron oxide as a conversion factor

Chemistry
1 answer:
satela [25.4K]3 years ago
5 0

Answer:

3rd option.

159.7g Fe2O3 / 1 mol Fe2O3

Explanation:

The correct way to write the molar mass of iron oxide as a conversion factor is illustrated below:

Mass of Fe2O3 = 159.7g

Number of mole = 1 mole

Molar Mass of Fe2O3 =?

Molar Mass = Mass /number of mole

Molar Mass =

159.7g Fe2O3 / 1 mol Fe2O3

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How many grams of MgCl2 (molar mass = 95.20 g/mol) will be formed from 25.6 mL of a 0.100 M HCL solution reacting with excess ma
lorasvet [3.4K]
The balanced equation for the above reaction is as follows;
Mg + 2HCl ---> MgCl₂ + H₂
stoichiometry of HCl to MgCl₂ is 2:1
we have been told that Mg is in excess therefore HCl is the limiting reactant 
number of HCl moles reacted - 0.100 mol/L x 0.0256 L = 0.00256 mol
according to molar ratio, number of MgCl₂ moles formed - 0.00256/2 
Therefore number of MgCl₂ moles formed - 0.00128 mol
mass of MgCl formed - 0.00128 mol x 95.20 g/mol = 0.122 g
3 0
3 years ago
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Given the [H+] = 3.89x10^-7M, what is the pOH?
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Answer:

7.59

Explanation:

7 0
3 years ago
Which question could be answered with qualitative data?
WINSTONCH [101]

Answer:

B

Explanation:

Quantitative data refers to numbers while qualitative data refers to characteristics.

5 0
3 years ago
URGENT!!!
Ksenya-84 [330]

Answer: The balance of the reaction shifts toward the endothermic reaction.

Explanation:

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if electrons in an atom have the lowest possible energies the atom is in the ground state true or false
nata0808 [166]
I believe the answer is true. Hope this helps.
7 0
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