Answer:
Hi. I'll explain
Explanation:
If you round it it will be 251
D is the answer (251)
A solution with a pH of 13.8 means that the solution is a strong base.
<h3>What is pH?</h3>
pH refers to power of hydrogen. The pH is a scale used to measure the degree of acidity or alkalinity of a solution.
pH scale ranges from 0 - 14
Where;
- 0 -6.9 indicates acidic
- 7.1 - 14 indicates basic
However, the closer the pH value is to 1, the more the acidity and vice versa while the closer it is to 14, the more the alkalinity and vice versa.
Therefore, a solution with a pH of 13.8 means that the solution is a strong base.
Learn more about pH at: brainly.com/question/15289741
Answer:
3.50 M
Explanation:
Step 1: Write the balanced equation
4 NH₃(g) + 7 O₂(g) ⇄ 2 N₂O₄(g) + 6 H₂O(g)
Step 2: Make an ICE chart
4 NH₃(g) + 7 O₂(g) ⇄ 2 N₂O₄(g) + 6 H₂O(g)
I 0 0 3.60 3.60
C +4x +7x -2x -6x
E 4x 7x 3.60-2x 3.60-6x
Step 3: Calculate the value of x
The concentration of water at equilibrium is 0.600 M. Then,
3.60-6x = 0.600 M
x = 0.500 M
Step 4: Calculate the concentration of O₂ at equilibrium
The concentration of O₂ at equilibrium is 7x = 7(0.500M) = 3.50 M
Surprisingly me an eighth grader is learning this but it is a hygrometer
<span>To solve this question, you need to find the equation of the reaction. I assume that the equation look like this:
2NaBr+F2</span>→<span>2NaF+<span>Br<span>2
In the equation, you can see that every 1 F2 molecule there used there will be 2 NaF(sodium fluoride) formed. So, the number of </span></span></span>sodium fluoride produced would be: <span>0.480 mol * 2= 0.96 moles</span>