A 2 M solution with an initial volume of 1 L is diluted to 2 L. What is the Molarity of the final
solution?

The molarity of the final solution is 1 M.

Explanation:

A simple equation to use is M1V1=M2V2.

M=molarity

V=volume

M1V1 are the initial conditions, while M2V2 are the final conditions. Initially, the problem tells us that the solution is 2 M with an initial volume of 1 L. It also gives the final volume, but not the final molarity, which is what we are trying to solve for. Using the equation, plug in the given conditions:

M1V1=M2V2

(2 M)(1 L) = (M2)(2 L)

Solve for M2, the final molarity.

M2=(2 M)(1 L)/(2 L)

M2= 1 M

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

the answer is c.the valence of the atoms combine .