Question

The number of milli moles of solute present in 10 ml of decimolar solution is

Answer 1

Answer: 0.000001 millimoles

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

$Molarity=\frac{n\times 1000}{V_s}$

where,

Molarity given = 0.1 M

n= moles of solute = ?

$V_s$ = volume of solution in ml = 10 ml

moles of solute= $\frac{\text {given mass}}{\text {molar mass}}$

$0.1 M=\frac{x\times 1000}{10ml}$

$x=0.001moles=0.000001millimoles$

Therefore there are 0.000001 milli moles are present in 10 ml.

Answer 2

Answer:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

Molarity given = 0.1 M

n= moles of solute = ?

V_s = volume of solution in ml = 10 ml

moles of solute= \frac{\text {given mass}}{\text {molar mass}}

0.1 M=\frac{x\times 1000}{10ml}

x=0.001moles=0.000001millimoles

Therefore there are 0.000001 milli moles are present in 10 ml.