Answer:
16
Explanation:
4 nitrogen (N) atoms and 12 (3×4) atoms in Hydrogen (H)
Total = 4 + 12 = 16 molecules
A quantity of property that must be transferred to body to the physical system to perform work
There are 22 bonding parts
Answer:
To find the mass percent of hydrogen in hydrogen chloride, we must divide the weight of the hydrogen atom alone by the weight of the entire molecule. Then we multiply by 100% to find the percentage. Thus, 2.77% of the mass of hydrogen chloride is hydrogen.
Explanation:
i hope you understand better
Answer : The density of air in
and
is,
and
respectively.
Explanation :

where,
P = pressure of air = 1 atm
V = volume of air
T = temperature of air = 297 K
The conversion used for the temperature from Fahrenheit to degree Celsius is:


The conversion used for the temperature from degree Celsius to Kelvin is:


n = number of moles
m = mass of air
M = average molar mass of air = 28.97 g/mole
= density of air = ?
R = gas constant = 0.0821 L.atm/mol.K
Now put all the given values in the above formula, we get:



Now we have to calculate density in
.
Conversion used :

So,

The density of air in
is, 
Now we have to calculate density in
.
Conversion used :

So,

The density of air in
is, 