Balanced equation:
<span>2 Na + 2 H₂O = 2 NaOH + H₂</span>
mole ratio :
2 moles Na ----------- 2 moles H₂O
12 moles Na --------- ? moles H₂O
moles H₂O = 12 x 2 / 2
moles H₂O = 24 / 2
= 12 moles of H₂O
hope this helps!
Secretary of the Treasury Alexander Hamilton supported the creation of the Bank of the United States because it would "(3) help ensure the economic stability of the new <span>nation"</span>
This is an incomplete question, here is a complete question.
A 6.55 g sample of aniline
molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter.
![4C_6H_5NH_2(l)+35O_2(g)\rightarrow 24CO_2(g)+14H_2O(g)+4NO_2(g)](https://tex.z-dn.net/?f=4C_6H_5NH_2%28l%29%2B35O_2%28g%29%5Crightarrow%2024CO_2%28g%29%2B14H_2O%28g%29%2B4NO_2%28g%29)
ΔH°rxn = -1.28 × 10⁴ kJ
Answer : The heat capacity of the calorimeter is, ![6.84kJ/^oC](https://tex.z-dn.net/?f=6.84kJ%2F%5EoC)
Explanation :
First we have to calculate the moles of aniline.
![\text{Moles of aniline}=\frac{\text{Mass of aniline}}{\text{Molar mass of aniline}}](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20aniline%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20aniline%7D%7D%7B%5Ctext%7BMolar%20mass%20of%20aniline%7D%7D)
![\text{Moles of aniline}=\frac{6.55g}{93.13g/mol}](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20aniline%7D%3D%5Cfrac%7B6.55g%7D%7B93.13g%2Fmol%7D)
![\text{Moles of aniline}=0.0703mol](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20aniline%7D%3D0.0703mol)
Now we have to calculate the heat releases.
As, 4 mole of aniline on combustion to releases heat = ![1.28\times 10^4kJ](https://tex.z-dn.net/?f=1.28%5Ctimes%2010%5E4kJ)
So, 0.0703 mole of aniline on combustion to releases heat = ![\frac{0.0703}{4}\times 1.28\times 10^4kJ=224.96kJ](https://tex.z-dn.net/?f=%5Cfrac%7B0.0703%7D%7B4%7D%5Ctimes%201.28%5Ctimes%2010%5E4kJ%3D224.96kJ)
Now we have to calculate the heat capacity of the calorimeter.
![\text{Heat capacity of the calorimeter}=\frac{\text{Heat releases}}{\text{Change in temperature}}](https://tex.z-dn.net/?f=%5Ctext%7BHeat%20capacity%20of%20the%20calorimeter%7D%3D%5Cfrac%7B%5Ctext%7BHeat%20releases%7D%7D%7B%5Ctext%7BChange%20in%20temperature%7D%7D)
![\text{Heat capacity of the calorimeter}=\frac{224.96kJ}{32.9^oC}](https://tex.z-dn.net/?f=%5Ctext%7BHeat%20capacity%20of%20the%20calorimeter%7D%3D%5Cfrac%7B224.96kJ%7D%7B32.9%5EoC%7D)
![\text{Heat capacity of the calorimeter}=6.84kJ/^oC](https://tex.z-dn.net/?f=%5Ctext%7BHeat%20capacity%20of%20the%20calorimeter%7D%3D6.84kJ%2F%5EoC)
Thus, the heat capacity of the calorimeter is, ![6.84kJ/^oC](https://tex.z-dn.net/?f=6.84kJ%2F%5EoC)
C. Homogeneous mixtures These alloys are homogeneous mixtures because they have a uniform composition throughout.
Answer: Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds.
Explanation: