How many particles are their in 2.080 moles
1 answer:
Answer:
There are 1.253*10²⁴ particles in 2.080 moles
Explanation:
Avogadro's number is called the number of particles that make up a substance (usually atoms or molecules) that can be found in the amount of one mole. In other words, Avogadro's number is the number of molecules that one mole of any substance contains. Its value is 6.023 * 10²³ particles per mole.
So, you can apply a rule of three as follows: if 1 mole has 6.023*10²³ particles, then 2.080 moles, how many particles does it have?
amount of particles= 1.253*10²⁴ particles
<u><em>There are 1.253*10²⁴ particles in 2.080 moles</em></u>
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Answer:
2.64 × J
Explanation:
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The Planck equation should be applied:
E = hv , while E is energy of proton; h is Planck constant; and v is frequency.
E = 6.6 × × 4 ×
= 6.6 × 4 ×
= 2.64 × J
The molecular formula of compound is .
Since, in 1 mole of there are
atoms of
.
Thus, according to molecular formula, in 1 mole of there are
atoms of oxygen atoms.
1 atom of oxygen will be present in moles of
. Thus,
.
Molar mass of is 236 g/mol, mass can be calculated as follows:
Therefore, mass of will be 172 g.