Answer:
Kb
Explanation:
The correct question is
What is Kb for N2H4 if the pH of a 0.158M solution of N2H5Cl is 4.5?
Solution-
N2H4Cl hydrolyses on addition of water
The reaction equation is as follows -
N2H4+ + H2O ----> N2H4 + H3O+
pH
Kb
Grasshoppers Have Ears on Their Bellies
Explanation:
Answer:
By adding 500 g or 0.5 kg of glucose to water until a volume of 1 L.
Explanation:
Hello,
In this case, since the mass-volume percent is computed taking into account the mass of solute and the volume of solution:
In order to make a 1-L solution, we must measure out the following mass of glucose:
By using a balance and subsequently mix it into a 1-L flask in order to prepare it.
Best regards.
Answer:
4Al (s) + 3O₂ (g) → 2Al₂O₃
General Formulas and Concepts:
<u>Chemistry - Reactions</u>
- Reaction Prediction
- Balancing RxN's
Explanation:
<u>Step 1: Define RxN</u>
Al (s) + O₂ (g) → Al₂O₃
<u>Step 2: Balance RxN</u>
4Al (s) + 3O₂ (g) → 2Al₂O₃
- Need to balance the amount of oxygens on both sides
- If we balance the oxygens, the aluminums will also have to be rebalanced
Answer:
A
Explanation:
because rate of diffusion is inversely proportional to molecular mass