How does the alcohol enter the body? Describe the process. Where does most of the absorption take place?
1 answer:
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Answer:
97 000 g Na
Explanation:
The absortion (or liberation) of energy in form of heat is expressed by:
q=m*Cp*ΔT
The information we have:
q=1.30MJ= 1.30*10^6 J
ΔT = 10.0°C = 10.0 K (ΔT is the same in °C than in K)
Cp=30.8 J/(K mol Na)
If you notice, the Cp in the question is in relation with mol of Na. Before using the q equation, we can find the Cp in relation to the grams of Na.
To do so, we use the molar mass of Na= 22.99g/mol
Now, we are able to solve for m:
=97 000 g Na
Answer:
38.9 grams of
Explanation:
0.187 mol BaCl2 x
0.187 m x 208 g/m
0.187 x 208 g
38.896 g --> 38.9 g BaCl2