Answer:
The formula would be: C₆H₈O
Explanation:
The mass of carbon dioxide formed = 627.4 mg
The percentage of carbon in the sample would be:
% carbon =
Where
44 is the molar mass of carbon dioxide.
The percentage of hydrogen in the sample would be:
% Hydrogen =
Rest will be oxygen = 100 -[74.92+8.33]=16.75
Let us calculate the moles of each of the elements present:
moles of carbon =
moles of hydrogen =
moles of oxygen =
The mole ration of carbon, hydrogen and oxygen = C:H:O = 6 : 8 : 1
so the formula would be:
C₆H₈O
Answer:
a solar eclipse is when the moon moves between the earth and the sun, so the moon casts a shadow on the earth
Explanation:
Answer:
This is the partial pressure of Ar in the flask. A 1.00 L flask is filled with 1.20g of argon at 25 degrees C. A sample of ethane vapor is added to the same flask until the total pressure is 1.400atm .
Explanation:
Answer:
the sum of the atomic masses of the elements
POH = -log[OH-] and pH + pOH = 14
So, all you have to do is take the negative log of 2.3*10^-5 and then subtract that number from 14 to find the pH