Answer:
6.46 × 10⁻¹¹ M
Explanation:
Step 1: Given data
pH of the solution: 3.81
Step 2: Calculate the pOH of the solution
We will use the following expression.
pH + pOH = 14.00
pOH = 14.00 - pH = 14.00 - 3.81 = 10.19
Step 3: Calculate the concentration of OH⁻ ions
We will use the definition of pOH.
pOH = -log [OH⁻]
[OH⁻] = antilog -pOH = antilog -10.19 = 6.46 × 10⁻¹¹ M
<span>The mole fraction of oxygen gas is 2/6 =1/3, because there are 6 total moles of gas in the container. The partial pressure can be found by multiplying this mole fraction by the total pressure. So the answer is B. 262 kPA because 1/3(786)=262.</span>
Number 4 is Global Warming
Answer:
Point Z
Explanation:
The river flows this direction pushing the water pollution to Point Z
Answer:
The answer to your question is Volume = 2.94 L
Explanation:
Data
Concentration = 6.2 M
Number of moles = 18.25
Volume = ?
Process
1.- Use the Molarity formula to solve this problem
Molarity = Number of moles / Volume
- Solve for volume
Volume = Number of moles / Molarity
2.- Substitution
Volume = 18.25 / 6.2
3.- Simplification
Volume = 2.94 L