Answer:
B. 5.0 × 10⁻¹² moles per liter.
Step-by-step explanation:
In this exercise we have to calculate the pH levels associated with respective hydrogen ion concentration based on the following formula:
Where is the hydrogen ion concentration, measured in moles per liter.
a) 3.5 × 10⁻¹⁶ moles per liter:
The substance is above the upper bound for alkaline substances.
b) 5.0 × 10⁻¹² moles per liter:
The substance is alkaline.
c) 1.0 × 10⁻⁷ moles per liter:
The substance is not acid nor alkaline.
d) 1.1 × 10⁻⁴ moles per liter:
The substance is acid.
Thus, we concluded that correct answer is B.
Answer:
180
Step-by-step explanation:
180 because it is obtuse
Answer:they saw things they never saw before
Step-by-step explanation:
Answer:
62 mm
Step-by-step explanation: