<u>Answer:</u> The moles of given hydrocarbon is 0.3 moles
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
We are given:
Given mass of ethane = 10.0 g
Molar mass of ethane = ![[(2\times 12)+(6\times 1)]=30g/mol](https://tex.z-dn.net/?f=%5B%282%5Ctimes%2012%29%2B%286%5Ctimes%201%29%5D%3D30g%2Fmol)
We need to divide the given value by the molar mass.
Putting values in above equation, we get:
In case of multiplication and division, the number of significant digits is taken from the value which has least precise significant digits. Here, the least precise number of significant digits are 1.
Hence, the moles of given hydrocarbon is 0.3 moles
Answer:
₈₆²²²Rn → ₈₄Po²¹⁸ + H₂⁴
Explanation:
The given nuclear reaction shows alpha decay.
₈₆²²²Rn → ₈₄Po²¹⁸ + H₂⁴
Properties of alpha radiations:
Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom.
Alpha radiations can travel in a short distance.
These radiations can not penetrate into the skin or clothes.
These radiations can be harmful for the human if these are inhaled.
These radiations can be stopped by a piece of paper.
₉₂U²³⁸ → ₉₀Th²³⁴ + ₂He⁴ + energy
No hablo espanol could you put it in English?
The conversation rate is c+273=k
Ideal gas law
Explanation:
The ideal gas law relates the temperature, pressure, volume and the number of moles of a gas under perfect conditions.
The ideal gas law is a combination of:
Boyle's law- "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"
Charles's law - "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant"
Avogadro's law - "equal volumes of all gases at the same temperature and pressure contains equal number of molecules".
The law gives:
PV = nRT
where:
P is the pressure of the gas
V is the volume of gas
n is the number of moles
T is the temperature
R is the gas constant
Learn more:
Ideal gas law problems brainly.com/question/13064292
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