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
Tanya [424]
3 years ago
11

What is the pH of an aqueous solution that has a hydroxide ion concentration of 1.0 x 10^-5 M?​

Chemistry
1 answer:
Alona [7]3 years ago
8 0

Answer:

pH = 9

Explanation:

pOH = -log[OH-] = -log(1.0 x10^-5) = 5

pOH + pH = 14

pH = 14 - 5 = 9

You might be interested in
Most people like to go outside on a sunny day, but too much sun exposure can cause sunburns as well as long term health problems
ss7ja [257]
Earths atmosphere protects you from the sun
4 0
3 years ago
Read 2 more answers
. What is the density of a block of plastic if the volume of the block is 5 cm and the mass is 17.2 g?
stellarik [79]

Answer:

<h3>The answer is 3.44 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 17.2 g

volume = 5 cm³

We have

density =  \frac{17.2}{5}  \\

We have the final answer as

<h3>3.44 g/cm³</h3>

Hope this helps you

5 0
3 years ago
How many equivalents are present in 10 g of Ca2+? <br> 1 <br> 0.5 <br> 1.5 <br> 2
Lynna [10]

0.5

Explanation:

Given parameters:

Mass of Ca²⁺ = 10g

unknown:

Equivalent weight = ?

Solution:

Equivalent weight that is the amount of electrons which a substance gains or loses per mole.

Ca²⁺ has +3 charge

It lost 2e⁻;

therefore;

  In 1 mole of  Ca²⁺, we have 2 equivalent weight

1 mol  Ca²⁺ = 2eq. wts. 

1 mol Ca x (40 g / 1 mol ) x (1 mol / 2 eq.wts.) = 20.0 g = 1 eq.wt. 

Therefore;

10.0 g  Ca²⁺ x (1 eq.wt. / 20.0 g) = 0.5 eq.wts.

learn more:

Molar mass brainly.com/question/2861244

#learnwithBrainly

8 0
3 years ago
When a substance goes from a gas to a liquid, it goes through a ________ change. chemical phase bond nuclear
algol [13]
It goes through a chemical bond
4 0
3 years ago
Read 2 more answers
A rectangular solid is 2.3 cm wide, 12.2 mm long and 0.75 inch thick. What is the volume of the piece?
Step2247 [10]
V=abc

a = 2,3cm
b=12,2mm = 1,22cm
c = 0,75inch = 1,905cm

V = 2,3cm*1,22cm*1,905cm ≈ 5,35cm³
5 0
3 years ago
Other questions:
  • How many total atoms in the compound Al3NO2
    11·2 answers
  • At lunch, the babysitter gives Tanya and Damien each a chocolate candy. Tanya puts her candy on her plate. Damien saves his cand
    10·1 answer
  • Describe the relationship between predator and prey in a balanced ecosystem.
    5·1 answer
  • Name an element which matches the description
    5·1 answer
  • "CU" is a pair of letters the element we call "copper".
    5·1 answer
  • The larger the pH scale value, the:
    8·1 answer
  • What’s the relative size of gamma rays
    5·2 answers
  • Atoms of different isotopes of the same element differ in their total number<br> of
    9·1 answer
  • Nitrogen gas was collected by water displacement. What was pressure of the N, collected if the temperature was 22 °C?​
    7·1 answer
  • Identify each of the following compounds as: (a) a nonelectrolyte: lactose (c12h22o11) potassium chloride (kcl) lactic acid (hc3
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!