19) what is the molarity of a koh solution if 200 ml of the solution contains 0.6 moles koh?

3M

Explanation: Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

where,

n = moles of solute = 0.6 moles

= volume of solution in ml= 200 ml

Now put all the given values in the formula of molarity, we get

Therefore, the molarity of solution will be 3M.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .