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
Potassium Hydroxide (KOH) when added to the solution would give the highest pH
Explanation:
Bases or Alkali are associated with high pH while Acidic substances are represented by lower pH value.
In the given option
HCl- is a strong acid hence would have pH less than 7
H2SO4- also an acid with a pH less than 7
KOH- base with a pH higher than 7
H20-neutral compound with pH as 7
KOH is a very strong base and dissociates in aqueous solution to give it's corresponding metallic ion and hydroxyl ions (OH-) which are characteristic property of any base.
Answer:
The critical temperature of a substance is the temperature at and above which vapour of the substance cannot be liquefied, no matter how much pressure is applied.
The correct answer is option C, 5.02 x 10²² carbon atoms
Atomic mass of C = 12 g/mol
According to Avogadro, 1 mole of C has 6.023 x 10²³C atoms
Now 1 mole of C is equal to 12 g
Therefore, 12 g of C = 6.023 x 10²³ C atoms
1 g of C = 
C atoms = 5.02 x 10²² C atoms
Answer:
helium family or neon family
Explanation:
you can use p
