As we move UP a energy pyramid, the amount of energy available to each level of consumers
1 answer:
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Answer : The enthalpy change for the solution is 166.34 kJ/mol
Explanation :
First we have to calculate the enthalpy change of the reaction.
Formula used :
where,
= change in enthalpy = ?
C = heat capacity of water =
m = total mass of sample = 2.174 + 127.4 = 129.6 g
= initial temperature =
= final temperature =
Now put all the given values in the above expression, we get:
Now we have to calculate the moles of AX added to water.
Now we have to calculate the enthalpy change for the solution.
As, 0.04592 moles releases heat = 7638.36 J
So, 1 moles releases heat =
Therefore, the enthalpy change for the solution is 166.34 kJ/mol
It would be D. Cs
Because if you look at a periodic table the first column are the group 1 metals - I included a picture of group 1
Because if you look at a periodic table the first column are the group 1 metals - I included a picture of group 1
Answer:
<h2>Volume = 9.29 mL</h2>Explanation:
Density of a substance can be found by using the formula
From the question
Density = 11.3 g/mL
mass = 105 g
Substitute the values into the above formula and solve for the volume
That's
Cross multiply
11.3v = 105
Divide both sides by 11.3
v = 9.29203
We have the final answer as
<h3>Volume = 9.29 mL</h3>Hope this helps you