Answer:
C
Explanation:
Think about it. If you accelerate, you go faster. This means you change speed.
Answer:
I'm pretty sure it's they have different masses. I don't know though
Explanation:
M1 * v1 = m2 * v2
<span>2.50 * v1 = 1 * 75
</span>2.50 * v1 = 75
2.50 * v1 /75= 75/75
<span>v1= 30 ml
The Answer is 30 ml</span>
For this question, we apply the Raoult's Law. The formula is written below:
P = P*x
where
P is the partial pressure
P* is the vapor pressure of the pure solvent
x is the mole fraction
The partial pressure is solved as follows:
P = Total P*x = (250 torr)(0.857) = 214.25 torr
Hence,
214.25 = (361 torr)(x)
<em>x = 0.593 or 59.3%</em>
The original reaction equation is:
C2H6(g) + O2(g) → CO2 + H2O
but this is not a balanced equation, SO we have to compare the no of atoms on both sides:
1-C atoms: we have 2 atoms on the left side and 1 on the right side so we put 2CO2 instead of CO2
C2H6(g) + O2(g) → 2CO2(g) + H2O(g)
2- H atoms: we have 6 atoms on the left side and 2 atoms on the right side so we put 3H2O instead of H2O
C2H6(g) + O2(g) →2CO2(g) + 3H2O(g)
2- O atoms: we have 2 atoms on the left side and 7 atoms in left side so we put 7/2O2 instead of O2
C2H6(g) + 7/2 O2(g) → 2CO2(g) + 3H2O(g) by dividing this equation by 2
∴the final balanced equation of our reaction is:
2C2H6(g) + 7 O2(g) → 4CO2(g) + 6 H2O(g)
as
C atoms on both sides = 4
H atoms on both sides = 12
O atoms on both sides = 14
