Answer: 13 grams
Explanation:
The quantity of heat energy (Q) released from a heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = 202.8 Joules
Mass of silver = ?
C = 0.240 J/g °C.
Φ = 65°C
Then, Q = MCΦ
202.8J = M x 0.240 J/g °C x 65°C
202.8J = M x 15.6 J/g
M = (202.8J / 15.6 J/g)
M = 13 g
Thus, the mass of silver is 13 grams
Answer:
![M_{acid}=0.141M](https://tex.z-dn.net/?f=M_%7Bacid%7D%3D0.141M)
Explanation:
Hello,
In this case, the reaction between sulfuric acid and hydroxide is:
![H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O](https://tex.z-dn.net/?f=H_2SO_4%2B2NaOH%5Crightarrow%20Na_2SO_4%2B2H_2O)
We can notice a 1:2 molar ratio between the acid and the base respectively, therefore, at the equivalence point we have:
![2*n_{acid}=n_{base}](https://tex.z-dn.net/?f=2%2An_%7Bacid%7D%3Dn_%7Bbase%7D)
And in terms of volumes and concentrations:
![2*M_{acid}V_{acid}=M_{base}V_{base}](https://tex.z-dn.net/?f=2%2AM_%7Bacid%7DV_%7Bacid%7D%3DM_%7Bbase%7DV_%7Bbase%7D)
So we compute the molarity of sulfuric acid as shown below:
![M_{acid}=\frac{M_{base}V_{base}}{2*V_{acid}} =\frac{0.100M*28.15mL}{2*10.0mL}\\ \\M_{acid}=0.141M](https://tex.z-dn.net/?f=M_%7Bacid%7D%3D%5Cfrac%7BM_%7Bbase%7DV_%7Bbase%7D%7D%7B2%2AV_%7Bacid%7D%7D%20%3D%5Cfrac%7B0.100M%2A28.15mL%7D%7B2%2A10.0mL%7D%5C%5C%20%5C%5CM_%7Bacid%7D%3D0.141M)
Best regards.
Picture?For the following equation so I can solve it for a better assistance please and thank you you
Answer: 39 degrees farehieght
Explanation:
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