Answer:
The answer to your question is 0.79 moles of SnCl₂
Explanation:
Data
moles of SnCl₂ = ?
mass of FeCl₃ = 85.3 g
excess Sn
Balanced chemical reaction
2 FeCl₃ + 3 Sn ⇒ 3 SnCl₂ + 2 Fe
Process
1.- Convert the mass of FeCl₃ to moles
Molar mass of FeCl₃ = 56 + (35.5 x 3)
= 56 + 106.5
= 162.5 g
Use proportions to find the moles of FeCl₃
162.5 g -------------------- 1 mol
85.3 g ------------------- x
x = (85.3 x 1) / 162.5
x = 0.525 moles
2.- Find the number of moles SnCl₂
2 moles of FeCl₃ ----------------- 3 moles of SnCl₂
0.525 moles ----------------- x
x = (0.525 x 3) / 2
x = 0.79 moles of SnCl₂
Answer:
![P_2=1.1x10^6Pa](https://tex.z-dn.net/?f=P_2%3D1.1x10%5E6Pa)
Explanation:
Hello.
In this case, we can solve this problem by applying the Boyle's law which allows us to understand the pressure-volume behavior as a directly proportional relationship:
![P_1V_1=P_2V_2](https://tex.z-dn.net/?f=P_1V_1%3DP_2V_2)
In such away, knowing the both the initial pressure and volume and the final volume, we can compute the final pressure as shown below:
![P_2=\frac{P_1V_1}{V_2}](https://tex.z-dn.net/?f=P_2%3D%5Cfrac%7BP_1V_1%7D%7BV_2%7D)
Consider that the given initial pressure is also equal to Pa:
![P_2=\frac{1.00x10^5Pa*11.00m^3}{1.00m^3}\\ \\P_2=1.1x10^6Pa](https://tex.z-dn.net/?f=P_2%3D%5Cfrac%7B1.00x10%5E5Pa%2A11.00m%5E3%7D%7B1.00m%5E3%7D%5C%5C%20%5C%5CP_2%3D1.1x10%5E6Pa)
Which stands for a pressure increase when volume decreases.
Regards.
Answer: These results show that the body regulates its salt and water balance not only by releasing excess sodium in urine, but by actively retaining or releasing water in urine.
Explanation:
Incorrect, temperature is directly proportional to the avg. KE of a gas.