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Korvikt [17]
2 years ago
7

The empirical formula for a compound is C3H3O its molecular mass 110 what is its molecular formula

Chemistry
1 answer:
Gnom [1K]2 years ago
5 0

Answer:

C6H6O2

Explanation:

Total mass of empirical =55

Total mass of compound is 110. So you need to multiply each atims by 2

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What is the name of this formula?
Alex_Xolod [135]

Answer:

Iron(III) Oxide

Explanation:

You can tell that this formula is for the molecule Iron(III) oxide because it has two iron atoms and three oxygen atoms.

Fun Fact: There are three main types of iron oxides, with this being one of them.

Hope this helped! :^)

3 0
2 years ago
Methods scientist use to determine a change in physical or chemical change in an Item
forsale [732]
They'd observe any new substances or new color, and temp. that is irreversible. 

If this helped and you have any other questions, feel free to comment on my wall. Hope this helped.
8 0
3 years ago
The normal boiling point of bromine is 58.8°C, and its enthalpy of vaporization is 30.91 kJ/mol. What is the approximate vapor p
saul85 [17]

Answer : The vapor pressure of bromine at 10.0^oC is 0.1448 atm.

Explanation :

The Clausius- Clapeyron equation is :

\ln (\frac{P_2}{P_1})=\frac{\Delta H_{vap}}{R}\times (\frac{1}{T_1}-\frac{1}{T_2})

where,

P_1 = vapor pressure of bromine at 10.0^oC = ?

P_2 = vapor pressure of propane at normal boiling point = 1 atm

T_1 = temperature of propane = 10.0^oC=273+10.0=283.0K

T_2 = normal boiling point of bromine = 58.8^oC=273+58.8=331.8K

\Delta H_{vap} = heat of vaporization = 30.91 kJ/mole = 30910 J/mole

R = universal constant = 8.314 J/K.mole

Now put all the given values in the above formula, we get:

\ln (\frac{1atm}{P_1})=\frac{30910J/mole}{8.314J/K.mole}\times (\frac{1}{283.0K}-\frac{1}{331.8K})

P_1=0.1448atm

Hence, the vapor pressure of bromine at 10.0^oC is 0.1448 atm.

4 0
3 years ago
Using the equation, C5H12 + 8O2 Imported Asset 5CO2 + 6H2O, if an excess of pentane (C5H12) were supplied, but only 4 moles of o
ser-zykov [4K]
Answer: 3 <span>moles of water would be produced in present case.
</span>
Reason:
Reaction involved in present case is:
<span>                            C5H12 + 8O2 </span>→<span> 5CO2 + 6H2O

In above reaction, 1 mole of C5H12 reacts with 8 moles of oxygen to give 6 moles of water.

Thus, 4 moles of oxygen will react with 0.5 mole of C5H12, to generate 3 moles of H2O.</span>
7 0
3 years ago
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Why do seasonal changes occur
sveticcg [70]

Answer:

the tilt in the Earth's axis causes seasons to change

7 0
3 years ago
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