Answer:
454.3 g.
Explanation:
1.0 mol of CaO liberates → – 64.8 kJ.
??? mol of CaO liberates → - 525 kJ.
∴ The no. of moles needed = (1.0 mol)(- 525 kJ)/(- 64.8 kJ) = 8.1 mol.
<em>∴ The no. of grams of CaO needed = no. of moles x molar mass</em> = (8.1 mol)(56.077 g/mol) = <em>454.3 g.</em>
Answer:
of the reaction is -6313 kJ/mol
of the reaction is -6312 kJ/mol
Explanation:





Therefore,
of the reaction is -6313 kJ/mol.
The chemical reaction in bomb calorimeter is as follows.




Therefore,
of the reaction is -6312 kJ/mol.
2 x 10 ^ 3
should be the answer ^ 3 is the exponent
Answer:
I believe it's (3)
Explanation:
same number of proton and electrons in both atoms A and atom B. but different number of neutron