What is the volume (in liters) of a 4.00 m solution needed to make 250 ml of a 0.400 m solution?

Molarity is the concentration of a solution expressed as the number of moles of solute per litre of solution.

To get the molarity, you divide the moles of solute by the litres of solution.

Molarity=moles of solutelitres of solution

For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of solution.

To calculate the molarity of a solution, you need to know the number of moles of solute and the total volume of the solution.

To calculate molarity:

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explanation:

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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