2 different elements- carbon and oxygen.............................
At these temperatures helium always will be a gas. When heated up, the pressure in the balloon rises, the balloon expands, and will reach to its original shape. The helium-filled balloon flies up in the air, because the average density of the balloon and helium together is lower than the density of air.
Answer:
this would be an oxidation-reduction reaction
Answer:
The molar mass of the gas is 44 g/mol
Explanation:
It is possible to solve this problem using Graham's law that says: Rates of effusion are inversely dependent on the square of the mass of each gas. That is:
![\frac{r_1}{r_2} =\frac{\sqrt{M_2} }{\sqrt{M_1} }](https://tex.z-dn.net/?f=%5Cfrac%7Br_1%7D%7Br_2%7D%20%3D%5Cfrac%7B%5Csqrt%7BM_2%7D%20%7D%7B%5Csqrt%7BM_1%7D%20%7D)
If rate of effusion of nitrogen is Xdistance / 48s and for the unknown gas is X distance / 60s and mass of nitrogen gas is 28g/mol (N₂):
![\frac{X/48s}{X/60s} =\frac{\sqrt{M_2} }{\sqrt{28g/mol} }](https://tex.z-dn.net/?f=%5Cfrac%7BX%2F48s%7D%7BX%2F60s%7D%20%3D%5Cfrac%7B%5Csqrt%7BM_2%7D%20%7D%7B%5Csqrt%7B28g%2Fmol%7D%20%7D)
6,61 = √M₂
44g/mol = M₂
<em>The molar mass of the gas is 44 g/mol</em>
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I hope it helps!
The states of matter that has a defined value but an undefined shape are liquids and gases. Hope this helps, have a BLESSED DAY!