Question

helllppp

Answer 1

5 muffins sells at $12.50
Price of one muffin = $12.50 / 5 = $2.50

s = 2.50m

Answer 2

b) To make $250, set s = 250 in the equation in part a): s = 2.50 * m and solve for m
250 = 2.50 * m
m = ?

Answer 3

i got 100:) can u help with another?

Answer 4

PV = nRT

Part a) V = nRT / P
Plug in the numbers and calculate V.

Answer 5

what numbers? i dont see any

Answer 6

a) What volume is needed to store 4 moles of gas at 400K under the pressure of 240kPA?

n = 4; T = 400K; P = 240 kPA; R = 8.314

Plug them into V = nRT / P and calculate V.

Answer 7

i got 55.42

Answer 8

what do you need help on?

Answer 9

55.43 liters is the volume.

Answer 10

what about b?

Answer 11

@jim_thompson5910

Answer 12

b)


PV = nRT

8000V = nRT ... plug in the given pressure

8000*12 = nRT ... plug in the given volume

8000*12 = n*8.314*T ... plug in the given constant

8000*12 = n*8.314*300 ... plug in the given temperature

96000 = n*2494.2

96000/2494.2 = n

38.4892951 = n ... this is approximate

n = 38.4892951

n = 38 ... round to the nearest integer


So there are roughly 38 moles of hydrogen gas in the cylinder.