Answer:
2CuBr +1 F2 ----> 2CuF + 1 Br2
Explanation:
2CuBr +1 F2 ----> 2Cuf + 1 Br2
Check answer
Cu is 2 Cu is 2
Br is 2 Br is 2
F is 2 F is 2
Answer:
a lot that's why it's really hot
Answer:
2.88L
Explanation:
So lets first consider the definition of molarity.
Molarity is the amount of moles per one L of solution. So we can simply put this as:
M = moles/L of solution
So the way we are going to approach this is we need to find the amount of moles of HCl. By doing this we can then use the amount of moles we have to figure out how much 5M solution we can then make. So lets plug in what we know:
It gives us 12M of HCl so M = 12
We also have 1.2L of HCl so volume of soltion = 1.2L
Meaning we have:
So if we multiply the 1.2 over we get:
Moles: 14.4
So we used 14.4 moles of HCl in our original 12M solution.
Now we can plug this value with our 5M in instead to get our amount of solution we could form:
This gives us
5(volume) = 14.4 moles
Meaning that
Volume = 14.4/5 or 2.88L
Answer:
The molar heat of combustion of hydrazine is -663.82 kJ/mole.
Explanation:
First we have to calculate the heat gained by the calorimeter.
where,
q = heat gained = ?
c = specific heat =
= final temperature =
= initial temperature =
Now put all the given values in the above formula, we get:
Now we have to calculate the enthalpy change during the reaction.
where,
= enthalpy change = ?
q = heat gained = 20.7444 kJ
n = number of moles fructose =
The molar heat of combustion of hydrazine is -663.82 kJ/mole.