The mass of 3.0 x 10²³ molecules of nitrogen gas is 13.95 g.
<h3>Mass of the Nitrogen gas</h3>
The mass of one mole of Nitrogen gas is 28 g/mol.
<h3>Number of atoms </h3>
The number of atoms in one mole of Nitrogen gas is 6.022 x 10²³ molecules.
The mass of Nitrogen gas in the given number of molecules is calculated as follows;
6.022 x 10²³ --------------------- 28 g/mol
3.0 x 10²³ ----------------------------- ?
Thus, the mass of 3.0 x 10²³ molecules of nitrogen gas is 13.95 g.
Learn more about mass of gas molecules here: brainly.com/question/11641158
Answer: An Element
Explanation:
An element is a substance that cannot be split into smaller substance. It is made up of one kind of atom and can exist either as molecules (e.g nitogen) or an atom (e.g argon).
Answer:
example ☝
a pandemic is a situation when people of suffering from the following disease is large in number or the cases are in larger number and it is
Answer:
iron (Fe)
Explanation:
Use q = mcΔT.
q = 1.396 x 10^2 J
m = 15.5g
ΔT = (45.0 - 25.0) = 20 degrees celcius
1.396 x 10^2 = 15.5 x c x 20
c = .450 J/g x degrees celcius
This is closest to the specific heat of iron/steel.
