What is the molarity of 3.7 moles of KBr dissolved in 2 L of water?

The molarity is : 1, 85M

Explanation:

The molartity is moles of compound (in this case KBr) in 1 liter of solution :

2 L3, 7 moles KBr

1 L..x= (1L x3, 7 moles KBr)/2L= 1,85 moles KBr--> 1,85M

 The molarity is 1.85M  solution.                  

Explanation:

Molarity:

Molarity is defined as the molar concentration of a solution measured in moles of solute per liter of solution.

Given:

moles = 3.7

solution = KBr  dissolved in 2L of water

To calculate: molarity  

The formula of molarity:

Molarity= moles of solute/liters of solution

Solution:

Molarity= 3.7/2      

molarity= 1.85M solution

Therefore molarity of 3.7 moles of KBr dissolved in 2 L of water is 1.85M solution.              

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.