Achemistry student needs 15.00g of acetic acid for an experiment. he has available 220.g of a 30.2% w/w solution of acetic acid in benzene. calculate the mass of solution the student should use. if there's not enough solution, press the "no solution" button. be sure your answer has the correct number of significant digits. g ×10no solution

4.97 x 10 g

Explanation:

220 g of solution has 30.2% w/w acetic acid.

220 g of the solution has 30.2/100 x 220 g = 66.44 g acetic acid.

15 g of acetic acid is needed.

Hence, if 220 g of solution contains 66.44 g acetic acid, what g will contain 15 g acetic acid?

       220 g solution = 66.44 g acetic acid

        X g solution = 15.00 g acetic acid

              X  =

                   X = 49.6689 g of solution

Therefore, 4.97 x 10 g of the solution should be used by the student.

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.

i believe that it is a exoplanet