<span>The relative strength of intermolecular forces such as ionic, hydrogen bonding, dipole-dipole interaction and Vander Waals dispersion force affects the boiling point of a compound. For this case, the longer the chain the higher the boiling point.
</span>CH, CH4, C4H10, C8H18, C16H34
Hope this answers the question. Have a nice day.
Beaker does thermometer measures the thermal energy in the air
Answer:
72.6 grams
Explanation:
I got this answer through stoichiometry. For every 1 mole of Mg, 2 moles of CuBr are consumed. Because of this, multiply the moles of Mg by 2. Then, convert moles to grams.
Answer: a) ![1.7\times 10^{-4}](https://tex.z-dn.net/?f=1.7%5Ctimes%2010%5E%7B-4%7D)
b) ![3.4\times 10^{-4}](https://tex.z-dn.net/?f=3.4%5Ctimes%2010%5E%7B-4%7D)
Explanation:
The reaction is :
![2N_2O_5(g)\rightarrow 4NO_2(g)+O_2(g)](https://tex.z-dn.net/?f=2N_2O_5%28g%29%5Crightarrow%204NO_2%28g%29%2BO_2%28g%29)
Rate = Rate of disappearance of
= Rate of appearance of
Rate =
= ![\frac{d[NO_2]}{4dt}](https://tex.z-dn.net/?f=%5Cfrac%7Bd%5BNO_2%5D%7D%7B4dt%7D)
Rate of disappearance of
=
= ![\frac{0.100-0.066}{200-0}=1.7\times 10^{-4}](https://tex.z-dn.net/?f=%5Cfrac%7B0.100-0.066%7D%7B200-0%7D%3D1.7%5Ctimes%2010%5E%7B-4%7D)
a) Rate of disappearance of
= ![-\frac{d[N_2O_5]}{2dt}](https://tex.z-dn.net/?f=-%5Cfrac%7Bd%5BN_2O_5%5D%7D%7B2dt%7D)
Rate of appearance of
= ![\frac{d[NO_2]}{4dt}](https://tex.z-dn.net/?f=%5Cfrac%7Bd%5BNO_2%5D%7D%7B4dt%7D)
b) Rate of appearance of
= ![\frac{d[NO_2]}{dt}=2\times 1.7\times 10^{-4}}=3.4\times 10^{-4}](https://tex.z-dn.net/?f=%5Cfrac%7Bd%5BNO_2%5D%7D%7Bdt%7D%3D2%5Ctimes%201.7%5Ctimes%2010%5E%7B-4%7D%7D%3D3.4%5Ctimes%2010%5E%7B-4%7D)
Answer:
4.25% is the final concentration of phosphoric acid.
Explanation:
Initial concentration of phosphoric acid = ![C_1=85\%=0.85](https://tex.z-dn.net/?f=C_1%3D85%5C%25%3D0.85)
Initial volume of phosphoric acid = ![V_1=50 mL](https://tex.z-dn.net/?f=V_1%3D50%20mL)
Final concentration of phosphoric acid = ![C_2=?](https://tex.z-dn.net/?f=C_2%3D%3F)
Final volume of phosphoric acid = ![V_2=1 L=1000 mL](https://tex.z-dn.net/?f=V_2%3D1%20L%3D1000%20mL)
( 1L = 1000 mL)
![C_1V_1=C_2V_2](https://tex.z-dn.net/?f=C_1V_1%3DC_2V_2)
![C_2=\frac{C_1times V_1}{V_2}](https://tex.z-dn.net/?f=C_2%3D%5Cfrac%7BC_1times%20V_1%7D%7BV_2%7D)
![=\frac{0.85\times 50 mL}{1000 mL}=0.0425=4.25%](https://tex.z-dn.net/?f=%3D%5Cfrac%7B0.85%5Ctimes%2050%20mL%7D%7B1000%20mL%7D%3D0.0425%3D4.25%25)
4.25% is the final concentration of phosphoric acid.