Answer:
7.9 × 10⁻⁹ M
Explanation:
Step 1: Given data
pH of the ocean: 8.1
Step 2: Calculate the concentration of hydronium ions
We will use the definition of pH.
pH = -log [H⁺] = -log [H₃O⁺]
[H₃O⁺] = [H⁺] = antilog -pH
[H₃O⁺] = antilog -8.1 = 7.9 × 10⁻⁹ M
Since [H₃O⁺] < 10⁻⁷ M, the solution is basic.
Sunscreen can have negative effects on corals and other marine organisms under certain circumstances.
Answer:
The answer to your question is Concentration = 0.54 mmol/L
Explanation:
Data
Barium acetate = BaCH₃CO₂
mass = 81.4 μmol
volume = 150 ml
concentration = mmol / L
Process
1.- Convert the μmol to mmol
1000 μmol ------------------ 1 mmol
81.4 μmol ----------------- x
x = (81.4 x 1) / 1000
x = 0.0814 mmol of BaCH₃CO₂
2.- Convert the volume to liters
1000 ml -------------------- 1 l
150 ml --------------------- x
x = (150 x 1) / 1000
x = 0.15 l
3.- Calculate the concentration
Concentration = 0.0814 / 0.15
= 0.54 mmol/L
Answer:
The correct answer is - solute.
Explanation:
A solute is one half of a solution that is dissolved in the other half of the solution, known as the solvent. Solute particles are always less or lower in quantity or concentration than the solvent in a solution.
In this case, coffee crystals are dissolved in hot water so the solute will be coffee crystals and the amount of coffee crystals are also less than the amount of solvent.
A I think if not sorry my bad
