<h3>
Answer:</h3>
A. It is a very strong base.
<h3>
Explanation:</h3>
To answer the question we need to ask ourselves several questions
What is pH?
- pH refers to the measure of alkalinity or acidity of a substance.
How is pH measured?
- pH is measured by determining the concentration of Hydrogen ions (H⁺) in a given solution.
- Then calculated by getting negative logarithm of hydrogen ions concentration.
- That is, pH = -log[H⁺]
What does pH tell about a solution?
- A solution with a pH below 7 is acidic while a solution with a pH above 7 is basic while that with a pH of 7 is neutral.
- A pH of 1 to 3 represents a strong acid while a pH of 4 to 6 represents a weak acid.
- Strong alkali or bases have a pH of 12 to 14 while weak alkali or bases have a pH of 8 to 11.
- Therefore, a solution with a pH of 14 is a very strong base
3H₂ + N₂ → 2NH₃
mole of N₂ = mass ÷ molar mass
= 2.70g ÷ (14 × 2)
= 0.096 mol
mole ratio of N₂ : H₂
1 : 3
∴ if the moles of N₂ = 0.096 mol
then the mole of H₂ = 0.096 mol × 3
= 0.289 mol
Now, mass = mole × molar mass
∴ mass of H₂ needed to react = 0.289 mol × (1 × 2)
= 0.579 g
Answer:
219.1K
Explanation:
T1/V1= T2/V2
Temp for Gas Laws are always in Kelvin
Volume is always Liters
so T2= (T1xV2)/V1
(35Lx313K)/50L=219.1K
Answer:
making the decision to buy a lottery ticket
Explanation:
all the others are q result of a thought........whereas the last one is actually one of the thoughts