Chemistry, 22.07.2019 19:00 tadvet5685

To what volume should you dilute 51 ml of a 13 m stock hno3 solution to obtain a 0.126 m hno3 solution?

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51 mL ${\text{HN}}{{\text{O}}_{\text{3}}}$ solution is diluted to $\boxed{{\text{5210}}{\text{.9 mL}}}$ to get the 0.126 M of solution.

Further explanation:

Molarity:

The molarity of the solution is defined as the concentration of the solution. It is equal to the number of moles of the solute dissolved in one liter of the solution.

The formula of molarity (M), volume (V), and number of moles (n) is as follows:

${\text{M}} = \frac{{\text{n}}}{{\text{V}}}$ …… (1)

Here V is a volume of solution in liters and n is a number of moles of solute.

If n is constant and is equal to k, the equation (1) will become:

${\text{MV}} = {\text{k}}$ …... (2)

If we have initial and final values of concentration and volume then the equation (2) can be modified as follows:

${{\text{M}}_{\text{1}}}{{\text{V}}_{\text{1}}}={{\text{M}}_{\text{2}}}{{\text{V}}_{\text{2}}}$ ……. (3)

Here,

${{\text{M}}_1}$ is the concentration before dilution.

${{\text{M}}_2}$ is the concentration after dilution.

${{\text{V}}_1}$ is the volume before dilution.

${{\text{V}}_2}$ is the volume after dilution.

On rearranging equation (3) for ${{\text{V}}_{\text{2}}}$ we get,

${{\text{V}}_{\text{2}}}=\frac{{{{\text{M}}_1}{{\text{V}}_1}}}{{{{\text{M}}_{\text{2}}}}}$ …… (4)

${{\text{M}}_1}$ is 13 M.

${{\text{M}}_2}$ is 0.126 M.

${{\text{V}}_1}$ is 51 mL.

Substitute the values of ${{\text{M}}_1}$ , ${{\text{M}}_2}$ and ${{\text{V}}_1}$ in equation(4).

$\begin{aligned}{{\text{V}}_{\text{2}}}&=\frac{{\left({{\text{13 M}}}\right)\times\left({{\text{51 mL}}}\right)}}{{{\text{(0}}{\text{.126}}\;{\text{M)}}}}\\&={\text{5261}}{\text{.90 mL}}\\\end{aligned}$

The volume of solution after dilution is 5261.90 mL.

The volume added to initial volume of solution is calculated as follows:

$\begin{aligned}{{\text{V}}_{{\text{added}}}}&={{\text{V}}_{\text{2}}}-{{\text{V}}_{\text{1}}} \\&={\text{5261}}{\text{.90 mL}}-{\text{51}}\;{\text{mL}}\\&={\text{5210}}{\text{.9}}\;{\text{mL}}\\\end{aligned}$

Hence, 51 mL is diluted to 5210.9 mL to get the 0.126 M of solution.

Learn more:

1. Write the equation to show how cation acts as an acid .

2. Calllculation of heat of vaporization:

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Mole concept

Keywords: Number of moles, concentration, volume, volume of solution after dilution, solute, 1liter, molarity, 51 mL, 5210.9 mL, 13m, 0.126m.

Answer from: Quest

mechanics (greek is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

Answer from: Quest

b) mutualism

hope this : )

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