Answer:
V = 121.82 L
Explanation:
Given data:
Number of moles of gas = 1.20 mol
Pressure of gas = 3.675 atm
Temperature = 100°C
Volume occupied = ?
Solution:
Formula:
General gas equation:
PV = nRT
R = general gas constant.
Now we will convert the temperature into kelvin.
100+273 = 373 K
V = nRT/P
V = 1.2 mol × 0.0821 atm.L/mol.K × 373 K / 3.675 atm
V = 447.68 / 3.675 atm
V = 121.82 L
The structural components that form the rungs of the ladder are the nitrogeneous bases of the DNA molecule. These bases are adenine, guanine, cytosine and thymine. Hope this answers the question. Have a nice day.
<span>Avogadro's number
represents the number of units in one mole of any substance. This has the value
of 6.022 x 10^23 units / mole. This number can be used to convert the number of
atoms or molecules into number of moles.
45.6 g Au ( 1 mol / 196.97 g ) ( </span>6.022 x 10^23 atoms / mole ) = 1.39x10^23 atoms Au
Answer:
Metal
Element: Calcium
Valency: 2
Explanation:
To find the element, let's use the periodic table. (Look below)
We already went past 3 shells, just need the 2 electrons after it.
Just skip to the 4th row and count 2 to the right
We end up at Calcium.
Calcium is a metal and we're also on the alkaline earth metals column.
Calcium will need to lose 2 electrons to reach stability, so the valency is 2.
