Answer:
For iron
Final temperature = 54,22°C
For copper
Final Temperature = 63.67 °C
Explanation
Hello,
You are using a torch to warm up a block of iron that has an initial temperature of 32°C.
The first you have to know is that the "heat capacity" could simply define as the heat required to go from an initial temperature to a final temperature.
So you need to use the heat capacity equation as follow in the paper.
The equation has to have all terms in the same units, so:
q = 12000 J
s = 0.450 J / g °C
m = 1200 g
Ti = 32 °C
Hsuisiifi Sotheby’s udjhr
Answer:
![m_{H_2O}=9.24gH_2O](https://tex.z-dn.net/?f=m_%7BH_2O%7D%3D9.24gH_2O)
Explanation:
Hello there!
In this case, since there is a 2:2 mole ratio between sodium peroxide and water according to the given reaction, it is possible to apply the following stoichiometric setup for the calculation of the required mass of water:
![m_{H_2O}=40.0gNa_O_2*\frac{1molNa_O_2}{78gNa_O_2}*\frac{2molH_2O}{2molNa_O_2} *\frac{18.02gH_2O}{1molH_2O} \\\\m_{H_2O}=9.24gH_2O](https://tex.z-dn.net/?f=m_%7BH_2O%7D%3D40.0gNa_O_2%2A%5Cfrac%7B1molNa_O_2%7D%7B78gNa_O_2%7D%2A%5Cfrac%7B2molH_2O%7D%7B2molNa_O_2%7D%20%20%2A%5Cfrac%7B18.02gH_2O%7D%7B1molH_2O%7D%20%5C%5C%5C%5Cm_%7BH_2O%7D%3D9.24gH_2O)
Best regards!
Density is Mass per Volume
so
0,8765 g/ml = Mass of Benzene / 250 ml
Mass of Benzene = 219,125 gram
so 250 ml of benzene is equal to 219,125 gram
The answer is True because they are formed of deposition.