1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phoenix [80]
4 years ago
7

`Suppose you have a sample that has a low pH (acidic). What would be true of the [OH-]?

Chemistry
1 answer:
Murljashka [212]4 years ago
4 0

Answer:

A sample that has low pH, will have a [OH⁻] < 1x10⁻⁷

Explanation:

Kw = 1x10⁻¹⁴

[H₃O⁺] = 1x10⁻⁷

[OH⁻] = 1x10⁻⁷

If pH is very low, [H₃O⁺] > 1x10⁻⁷

For example,  [H₃O⁺] = 1x10⁻³ M

- log [H₃O⁺]  = pH

- log 1x10⁻³ M = pH = 3

[OH⁻] will be < 1x10⁻⁷

For the example we made before

pH = 3

pOH = 14 - pH → 11

10^-pOH = [OH⁻]

10⁻¹¹ = 1x10⁻¹¹

You might be interested in
Difference between shell and subshell?
juin [17]
The "sub shells" are the orientations and shapes for your orbitals, going in order by Shells are a collection of subshells with the same principle quantum number, and subshells are a collection of orbitals with the same principle quantum number and angular momentum quantum number. Hope this helps :)
3 0
3 years ago
Which pair of elements are in the same period?Hg &amp; PbLi &amp; NaB &amp; ClO &amp; As
Alexeev081 [22]

Answer:

Hg Pb are in one, Li and B and O are in one, and NaCl are in one, As is alone

Explanation:

Periods are horizontal

Hope this helps!

4 0
3 years ago
Many computer chips are manufactured from silicon, which occurs in nature as SiO2. When SiO2 is heated to melting, it reacts wit
riadik2000 [5.3K]

Answer:

A) SiO2 is the limiting reactant

B) Theoretical yield= 72333.3g

C) % yield =91.5%

Explanation:

SiO2(s) + 2C(s) --------------> Si(s) + 2CO(g)

n(SiO2)= 155000/60 = 2583.33 mols

n(C)= 79000/12= 3291.66 mols

a)SiO2 is the limiting reactant

According to the balanced reaction equation,

60g of SiO2 produced 28g of SiO2

155000g of SiO2 will produce 155000×28/60= 72333.3g

Therefore theoretical yield of Si= 72333.3g

% yield= 66200/72333.3×100/1 =91.5%

5 0
4 years ago
How many oxygen atoms in 1 mole of CO2
Romashka-Z-Leto [24]
There are two oxygen atoms
8 0
4 years ago
Read 2 more answers
Name the following compounds:
ankoles [38]
A) cesium chloride
B) barium oxide
C) potassium sulfide
D) beryllium chloride
E) hydrogen bromide
F) aluminum fluoride
3 0
3 years ago
Other questions:
  • PLEASE ANSWER FAST
    5·2 answers
  • Compare the distance between the molecules of a gas in a very small container with the distance between the molecules of the sam
    11·1 answer
  • If you were asked to convert 4.2 × 1022 atoms of aluminum to moles, which of the following should you use for the conversion?
    12·2 answers
  • Alchemy is a branch of ancient knowledge that states that the only three essential substances in nature are salt, sulfur, and me
    7·1 answer
  • Why is the right side
    9·1 answer
  • Compare the evaporation of a contained liquid with that of an uncontained liquid.
    12·1 answer
  • Which describes Bohr’s contribution to the atomic model?
    7·1 answer
  • The average weather pattern of a region over a long period of time is known as
    15·2 answers
  • Which phrase is the best definition of science?
    15·1 answer
  • Which of these is NOT part of the nervous system?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!