An experiment in a general chemistry laboratory calls for a 2.00 m solution of hcl. how many ml of 11.9 m hcl would be required to make 250 ml of 2.00 m hcl?

The volume of concentrated solution required is 42 mL

Explanation:

To calculate the molarity of the diluted solution, we use the equation:

where,

are the molarity and volume of the concentrated solution

are the molarity and volume of diluted solution

We are given:

Putting values in above equation, we get:

Hence, the volume of concentrated solution required is 42 mL

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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