Explanation:
As it is known that molarity is the number of moles present in a liter of solution.
Mathematically, Molarity = 
As it is given that molarity is 0.10 M and volume is 10.0 ml. As 1 ml equals 0.001 L. Therefore, 10.0 ml will also be equal to 0.01 L.
Hence, putting these values into the above formula as follows.
Molarity =
0.10 M = 
no. of moles = 0.001 mol
As molar mass of KCN is equal to 65.12 g/mol. Therefore, calculate the mass of KCN as follows.
No. of moles = 
0.001 mol = 
mass = 0.06152 g
Thus, we can conclude that 0.06152 grams of KCN are in 10.0 ml of a 0.10 M solution.
If the Kelvin
temperature of a gas is doubled, the volume of the gas will increase by two. It
follows Charles law where in for a mixed gas of mass, the volume is directly
proportional to the temperature at constant pressure.
Due to it's electronic configuration w/c is 1s2 2s2 2ps 3s1 considering the last w/c is 3s1, sodium should be in row 3 period a1.
Answer:
The answer to your question is: 0.1 M
Explanation:
data
Volume of AgNO3 = 20.00 ml
1000 ml -------------- 1 l
20 ml --------------- x
x = 20x 1 /1000 = 0.02
AgCl = 0.2867 g
MW of AgCl = 35.45 + 107.9 = 143.35 g
143.35 g -------------- 1 mol
0.2867 g ------------- x
x = 0.2867 x 1 / 143.35 = 0.002 moles of AgCl
From the balance reaction we see that the proportion of AgNO3 to AgCl is 1:1, then
1 mol of AgNO3 -------------------- 1 mol of AgCL
x --------------------- 0.002 moles of AgCl
x = 0.002 moles of AgNO3
This moles of AgNO3 are in 20 ml or 0.02 liters
So, Molarity = # moles/liter
Molarity = 0.002 moles/ 0.02 = 0.1 M
