Answer:
<u>= 14.24g of </u><u> is required.</u>
Explanation:
Reaction equation:
→
Mole ratio of ammonium carbonate to carbon dioxide is 1:1
1 mole of CO2 - 44g
?? mole of CO2 - 6.52g
= 6.52/44 = 0.148 moles was produced from this experiment.
Therefore, if 1 mole of - 96.09 g
0.148 mol of -- ?? g
=0.148 × 96.09
<u>= 14.24g of </u><u> is required.</u>
The scientist should make a new hypothesis and do a new experiment! That is what I say!
Energy required to vaporize : 32.3 kJ
<h3>Further explanation
</h3>
The heat to change the phase can be formulated :
Q = mLf (melting/freezing)
Q = mLv (vaporization/condensation)
Lf=latent heat of fusion
Lv=latent heat of vaporization
Mass of water = 14.27 g
Latent heat of vaporization
( boiling point of 100 ºC) : 2260 J/g
Energy required :
Answer:
I had to do some research, because I not familiar with Hess's Law.
Hope this helps :)
Stating Hess's Law
Hess's Law is the most important law in this part of chemistry. Most calculations follow from it. It says "The enthalpy change accompanying a chemical change is independent of the route by which the chemical change occurs."
Explaining Hess's Law
Hess's Law is saying that if you convert reactants A into products B, the overall enthalpy change will be exactly the same whether you do it in one step or two steps or however many steps.
Answer:
C. The samples contain the same substances in a fixed proportion.