Calculate the molarity (M) of a solution that contains 1.5 grams of KOH and has a volume of 2.0 L. You must show your work in order to receive credit.

about 0.013M

Explanation:

since Molarity is = n/V or moles/volume of solution, we can solve for both. To find moles, we can do 1.5 divided by the molar mass of KOH. We get around 0.0267341556.  Then, we divided by the volume which is 2 and get, rounded to 2 sigfigs: 0.013M

false

because it does not have the potential to be entirely used up

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.