What volume in l of a 0.32 m mg(no3)2 solution contains 45 g of mg(no3)2?

0.94L

Explanation:

As a solution of concentration of 0.32 M indicates that contains 0.32 moles of the compound in 1L of solution. So we need to calculate the grams of Mg(NO3)2 in 0.32 M:

×

This is telling you that you have 47.5 g de Mg(NO3)2 per liter of solution.

Now, using a rule of three you can know de volume that occupies a solution containing 45 g of Mg(NO3)2:

47.5 g Mg(NO3)2 → 1L solution

45 g Mg(NO3)2 → x

Finally, we have 45g of Mg(NO3)2 in a volume of 0.94L of solution 0.32 M Mg(NO3)2.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.