What is the mass of neon that exerts a pressure of 720. mmhg, with a temperature of -15.0 °c , when the volume of the container is 760. ml?

Mass = 0.61 g

Explanation:

Given data:

Pressure of neon gas = 720 mmHg

Temperature = -15.0°C

Volume = 760 mL

Mass of neon gas = ?

Solution:

720 mmHg = 720/760 = 0.95 atm

-15.0°C + 273 = 258 K

760/1000 = 0.76 L

PV = nRT

n = PV/RT

n = 0.95 atm ×0.76 L/ 0.0821 atm. L. k⁻¹.mol⁻¹× 258 K

n = 0.722 atm. L/ 21.2 atm. L. mol⁻¹

n = 0.03 mol

Mass of neon:

Mass = number of moles × molar mass

Mass = 0.03 mol × 20.2 g/mol

Mass = 0.61 g

answer; ///(d) the correct answer is double or triple

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation: