Answer:
The volume of the gas sample at standard pressure is <u>819.5ml</u>
Explanation:
Solution Given:
let volume be V and temperature be T and pressure be P.
![V_1=250ml](https://tex.z-dn.net/?f=%20V_1%3D250ml)
![V_2=?](https://tex.z-dn.net/?f=%20V_2%3D%3F)
![P_{total}=735 mmhg](https://tex.z-dn.net/?f=%20P_%7Btotal%7D%3D735%20mmhg)
1 torr= 1 mmhg
42.2 torr=42.2 mmhg
so,
![P_{water}=42.2mmhg](https://tex.z-dn.net/?f=%20P_%7Bwater%7D%3D42.2mmhg)
![T_1=35°C=35+273=308 K](https://tex.z-dn.net/?f=%20T_1%3D35%C2%B0C%3D35%2B273%3D308%20K)
Now
firstly we need to find the pressure due to gas along by subtracting the vapor pressure of water.
![P_{gas}=P_{total}-P_{water}](https://tex.z-dn.net/?f=%20P_%7Bgas%7D%3DP_%7Btotal%7D-P_%7Bwater%7D%20)
=735-42.2=692.8 mmhg
Now
By using combined gas law equation:
![\frac{P_1*V_1}{T_1} =\frac{P_2*V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1%2AV_1%7D%7BT_1%7D%20%3D%5Cfrac%7BP_2%2AV_2%7D%7BT_2%7D)
![V_2=\frac{P_1*}{P_2}*\frac{T_2}{T_1} *V_1](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7BP_1%2A%7D%7BP_2%7D%2A%5Cfrac%7BT_2%7D%7BT_1%7D%20%2AV_1)
![V_2=\frac{P_gas}{P_2}*\frac{T_2}{T_1} *V_1](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7BP_gas%7D%7BP_2%7D%2A%5Cfrac%7BT_2%7D%7BT_1%7D%20%2AV_1)
Here
are standard pressure and temperature respectively.
we have
![P_2=750mmhg \:and\: T_2=273K](https://tex.z-dn.net/?f=P_2%3D750mmhg%20%5C%3Aand%5C%3A%20T_2%3D273K)
Substituting value, we get
![V_2=\frac{692.8}{750}*\frac{273}{308} *250](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7B692.8%7D%7B750%7D%2A%5Cfrac%7B273%7D%7B308%7D%20%2A250)
![V_2= 819.51 ml](https://tex.z-dn.net/?f=V_2%3D%20819.51%20ml)
Answer:
35.8 g
Explanation:
Step 1: Given data
Mass of water: 63.5 g
Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C
Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.
63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl
Hmm well thinking of how amperes are generated it should be true
Answer:
100 C or 212 F
Explanation:
That is the boiling point for liquid so both gas and liquid are presented.
Hi,
10,000,000sec = 16.53 weeks
Hope this helps.
r3t40