Question

A Review Constants Periodic Table Part B In a sample of gas, the molecules around and collide with each her. These collisions generate asured in different units. One nosphere (atm) because it is el, the average pressure is 1 atm. teadily drops until you leave the se to 0 atm. The pressure in car tires is often measured in pounds per square inch (lb/in?), with the recommended pressure being in the range of 25 to 45 lb/in. Suppose a tire has a pressure of 40.5 lb/in". Convert 40.5 lb/in. to its equivalent in atmospheres. Express the pressure numerically in atmospheres. View Available Hint(s) 80 AEQ * R O a ? 40.5 lb/in. = atm enly used units of measuring gas t conversions m equivalent atm (exact) 50 mmHg 760 torr 9.9 in. Hg 1.7 lb/in. 01,325 Pa Submit Part C High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa) to about 60,000 kPa (60,000,000 Pa). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 5.65x10' Pa, what is its running pressure in torr? Express the pressure numerically in torr. View Available Hint(s) IVO AQ * O a? 5.65*107 Pa = 0.0588 • 107 Submit Previous Answers X Incorrect; Try Again; 3 attempts remaining Provide Feedback Next >

Answer 1

101325 B) 1 lb/in2= 6894.7 pa .. 40.5 lb lin² = (6894.7 X40.5) Pa Now, 101395 Pa = 1 atm 2) 1 Pa = 1 am => (8894.7x40.5) Pa = 689 4.7x40.5 atm 101325 2.76 atm @ 101325 Pa = 1 atm - 1 Pa = 101325 atm > 5.65 x 107 Pa = 5.65 xlot atm 101325 557.61 atm 35.88 X1 atm = -