Answer:
37.5 L
Explanation:
Initial Volume, V1 = 15L
Initial Pressure P1 = 4.5 atm
Final Pressure, P2 = 1.8 atm
Final Volume V2 = ?
The relationship between these variables is given as;
P1V1 = P2V2
V2 = PIV1 / P1
Inserting the values;
V2 = 4.5 * 15 / 1.8
V2 = 37.5 L
Given information:
Mass of pure silver = 195 mg
To determine :
Mass of silver chloride required to plate 195 mg of pure silver
Calculation:
The silver chloride used for silver plating usually contains 75.27 % silver
i.e.
every 100 mg of silver chloride will contain 75.27 mg silver
therefore, amount of silver chloride corresponding to 195 mg of silver would be = 195 mg * 100 mg/75.27 mg
= 259.1 mg
Answer: Time required for 100 molecules of valinomycin to transport enough 
to change the concentration inside an erythrocyte is 10 minutes.
Explanation:
The given data is as follows.
Ions to be transported = 
= 
= 
ions
Here, there are 100 ionophores are present and each one of ionophores are required to transport a value of ions.
Therefore, the time required for 100 molecules of valinomycin to transport enough to change the concentration inside an erythrocyte is as follows.
= 602 sec
or, = 10 minutes (as 1 min = 60 sec)
Thus, we can conclude that time required for 100 molecules of valinomycin to transport enough to change the concentration inside an erythrocyte is 10 minutes.
