How many liters of gas are contained in 0.987 mols of krypton?

22.11 L

Explanation:

Data Given:

no. of moles of Krypton  = 0.987

Liters of Krypton gas (volume) = ?

Solution:

we will volume of gas

Formula used

          no. of moles = Volume of gas / Molar volume

Rearrange the above equation to find volume

          Volume of gas = no. of moles x Molar Volume . . . . . . (1)

Where

Molar volume = 22.4 L /mol

Put values in above equation 1

          Volume of gas = 0.987 mols x 22.4 L /mol

          Volume of gas = 22.11 L

So,

 Volume of Krypton gas = 22.11 L

output?

explanation:

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.