A block of chocolate is melting on a hot pan. What type of heat transfer is this? Describe the way heat is transferred between t
1 answer:
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Answer: 1.35x 10²³ molecules FeCl3
Explanation: First find the number of moles for FeCl3 using its molar mass which is equal to 162.2 g FeCl3
Convert moles of FeCl3 to molecules by using the Avogadro's number.
The method of determining the most common isotope of lead is by determining the average atomic mass. The formula for determining the average atomic mass is:
Substituting the values in the formula:
The most common isotope of lead is:
Lead - 207.22 amu
The atomic symbol of lead is . The atomic number of
is 82.
So, the the most common isotope of lead can be written as:
and Lead - 207.22 amu.