(7 pts) hydrogen and chlorine atoms react to form simple diatomic molecules in a 1: 1 ratio that is hcl. the natural abundances of the chlorine isotopes are 75.77% 35cl and 24.23% 37cl. the natural abundance of 1h is 99.985%, the natural abundance of 2h is 0.015% and there is only a trace (less than 0.001%) of 3h. (a) how many different peaks can hcl produce in a mass spectrometer and what is the mass number for each peak observed? (b) what is the relative abundance of each mass. (c) sketch the mass spectrometry analysis output (relative number of atoms vs mass number) for an hcl sample.

The following peaks with the following intensities are will be observed

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.