The volume of gas under STP is 0.512 liters.
Explanation:
At STP (Standaed Temperature and Pressure)
T = 0°C
P = 1 atm = 760 mmHg
Given
P1 = 756 mmHg
T1 = -21.5°C = -21.5 + 273 = 251.5 K
V1 = 475 mL = 0.475 L
P2 = 760 mmHg
T1 = 0°C = 0 + 273 = 273 K
We know that
V2 = 0.512 L
Answer:
19.264×atoms are present in 3.2 moles of carbon.
Explanation:
It is known that one mole of each element is composed of Avagadro's number of atoms. This is same for all the elements in the periodic table.
So, as 1 mole of any element = Avagadro's number of atoms = 6.02× atoms
It is as simple as understanding a dozen of anything is equal to 12 pieces of that object.
As here the moles of carbon is given as 3.20 moles, the number of atoms in this mole can be determined as below.
1 mole of carbon = 6.02 × atoms
Then, 3.20 moles of carbon = 3.20 × 6.02 × atoms
Thus, 19.264×atoms are present in 3.2 moles of carbon.
Explanation:
These Rocks shown in photographs are made of different types of minerals which have properties as follows:
●The color of the rock is grey, brown and yellow after it is ground into a powder its color is streak.
● The lustre of the rock tells how shiny the rocks are.
● Other properties include hardness, texture, shape, and size.
Hydrogen, H.
I hope this helps!