The correct answer should be answer choice B
Answer:
e) 1000 μg
Explanation:
When we need to change of units is very important to know equivalence and use conversion factors to change from one unit to another unit.
1Ton = 1000Kg
1Kg = 1000g
1g = 1000mg
1mg = 1000 μg
In this case, always 1mg will be equal to 1000 μg as well as 2mg will be 1000μg
Answer : (C) 854.46 KPa.
Solution : Given,
Initial pressure = 400 KPa
Initial temperature = 110 K
Final temperature = 235 K
According to the Gay-Lussac's law, the absolute pressure is directly proportional to the absolute temperature at constant volume of an ideal gas.
P ∝ T
Formula used :
![\frac{P_{1}}{P_{2}}=\frac{T_{1}}{T_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7BP_%7B1%7D%7D%7BP_%7B2%7D%7D%3D%5Cfrac%7BT_%7B1%7D%7D%7BT_%7B2%7D%7D)
where,
= initial pressure
= final pressure
= initial temperature
= final temperature
Now put all the values in above formula, we get
![\frac{400}{P_{2}}=\frac{110}{235}](https://tex.z-dn.net/?f=%5Cfrac%7B400%7D%7BP_%7B2%7D%7D%3D%5Cfrac%7B110%7D%7B235%7D)
By rearranging the terms, we get the value of new/final pressure.
= 854.5454 KPa
854.55 KPa
Answer: 5.844 grams of NaCl needed to make solution.
Explanation: