Which of the following represents the number of moles of a solute in one liter of a solution?

1. density
2. molarity
3. percent by mass
4. volume

question 2

the ph of a solution is 2.60. what is the [h3o+] for the solution?

1. 2.51 × 102 m
2. 3.98 × 102 m
3. 2.51 × 10−3 m
4. 3.98 × 10−3 m

Q1: 2. Molarity.

Q2: 2.51 x 10⁻³.

Explanation:

Q1:

Q2:

∵ pH = - log[H₃O⁺]

∴ 2.60 = - log[H₃O⁺]

log[H₃O⁺] = -2.6.

∴ [H₃O⁺] = 2.51 x 10⁻³.

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

i think its 100

i hope this !