Answer:
Multiplying the number of moles of the sample by Avogadro's number
Explanation:
The process that will help determine the number of atoms in a sample is by multiplying the number of moles of the sample by Avogadro's number.
The number of moles of substance has a wide range of application in quantitative chemistry.
A mole of any substance contains the Avogadro's number of particles. The particles can be atoms, molecules, formula units, neutrons, protons, electrons etc.
So, when we have the number of moles of a substance, the number of atoms is obtained by multiplying with the Avogadro's constant.
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Answer:
A converter to convert from dc to ac
Explanation:
Answer:
The correct answer is option C.
Explanation:
Heat of formation is defined as change in enthalpy during the formation of 1 mole of compound from its constituent elements in its standard states.it is denoted by symbol . Its units are Kilo joules per mole.
- If <0, the change in enthalpy is negative then it means that energy is released during the formation of 1 mole of substance.
- If >0 , the change in enthalpy is positive then it means that energy is absorbed during the formation of 1 mole of substance.
For example:
286 kilo Joules of energy given out when 1 mole of liquid water is formed.