Answer:
answers is - 3.568
I think this correct answer
Answer:
The answer to your question is V2 = 825.5 ml
Explanation:
Data
Volume 1 = 750 ml
Temperature 1 = 25°C
Volume 2= ?
Temperature 2 = 55°C
Process
Use the Charles' law to solve this problem
V1/T1 = V2/T2
-Solve for V2
V2 = V1T2 / T1
-Convert temperature to °K
T1 = 25 + 273 = 298°K
T2 = 55 + 273 = 328°K
-Substitution
V2 = (750 x 328) / 298
-Simplification
V2 = 246000 / 298
-Result
V2 = 825.5 ml
Answer:
106.25 mL
Explanation:
For this, we can use
C1×V1=C2×V2
C1 = 0.45
V1 = 85
C2= 0.20
V2= ?
0.45 × 85 = 0.20 × V2
V2= (0.45 × 85)/0.20
V2=191.25mL
To find the amount of water added, subtract V1 from V2
191.25 - 85 =106.25mL
Explanation:
Since, it is given that carbon dioxide is completely removed by absorption with NaOH. And, pressure inside the container is 0.250 atm.
For Kr = 0.250 atm and pressure 
will be calculated as follows.
= (0.708 - 0.250) atm
= 0.458 atm
Now, we will calculate the mole fraction as follows.
= 0.646
Kr = 
= 0.353
Now, we will convert into gram fraction as follows.
= 28.424
Kr = 
= 29.57
Therefore, total mass is calculated as follows.
Total mass = (28.424 + 29.57)
= 57.994
Hence, the percentage of and Kr are calculated as follows.
= 49%
Kr = 
= 51%
Hence, amount of and Kr present i mixture is as follows.
in mixture = 
= 17.15 g
Kr = 
= 17.85 g
Thus, we can conclude that 17.15 g of is originally present and 17.85 g of Kr is recovered.
Answer:
the answer is A
Explanation:
According to the law of conservation of energy or the first law thermodynamics energy neither be created nor destroyed, energy is transferred from one form to another form.
