4 years ago

Can someone help me

1 answer:

8 0

I can’t see it can you write the problem ?

You might be interested in

inessss [21]

Answer:

where are the statements??

Explanation:

7 0

3 years ago

masha68 [24]

8CO+9H2 —> 1 C8H18+9H2O

3 0

3 years ago

yawa3891 [41]

Electron requires energy to move from ground state to excited state(higher energy levels). Hence option 1 is correct. Hope this helps!

5 0

3 years ago

BigorU [14]

The energy produced in the burning of gasoline = 45 kJ/g. So, amount of energy produced by burning 48 L gasoline = 45 kJ/g×36960 g = 1663200 kJ.

4 0

3 years ago

inysia [295]

<u>Answer:</u> The number of moles of nitrogen gas is 0.505 moles.

<u>Explanation:</u>

To calculate the number of moles of nitrogen gas, we use ideal gas equation, which is:

$PV=nRT$

where,

P = pressure of the gas = 4.27 atm

V = Volume of the gas = 2.96 L

T = Temperature of the gas = $32.0^oC=[32.0+273]K=305K$

R = Gas constant = $0.0821\text{ L. atm }mol^{-1}K^{-1}$

n = number of moles of gas = ?

Putting values in above equation, we get:

$4.27atm\times 2.96L=n\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 305K\\n=0.505mol$

Hence, the number of moles of nitrogen gas is 0.505 moles.

6 0

4 years ago