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
vladimir2022 [97]
3 years ago
7

A rectangular box has a length of 12 cm, a width of 20 cm, and

Chemistry
1 answer:
Zepler [3.9K]3 years ago
3 0

Answer: a. 1,200 mL

Explanation:

20 x 12 x 5 = 1,200

(L x W x H)

You might be interested in
Calculate the mass of nitric acid required to make a 250mL solution with 2.40 ph
meriva

The mass of nitric acid required to make the given solution is 0.0627 g.

The given parameters:

  • <em>Volume of the acid, V = 250 mL</em>
  • <em>pH of the acid, = 2.4</em>

The hydrogen ion (H⁺) concentration of the nitric acid is calculated as follows;

H^+ = 10^{-pH}\\\\H^+ = 10^{-2.4}\\\\H^+ = 0.00398

The molarity of the nitric acid is calculated as follows;

=  0.00398 \ H^+ \times \frac{1 \ M \ HNO_3}{1 \ H^+} \\\\= 0.00398 \ M

The number of moles of the nitric acid is calculated as follows;

moles = M\times L\\\\moles = 0.00398\ M \ \times \ \frac{250 \ mL}{1000} \\\\moles = 9.95 \times 10^{-4} \ mol.

The molar mass of nitric acid is calculated as;

HNO_3 = (1) \ + (14) \ + (16 \times 3) = 63 \ g/mol

The mass of the nitric acid contained in the calculated number of moles is calculated as;

mass = moles\  \times \ molar \ mass\\\\mass = 9.95\times 10^{-4} \ mol. \ \times \ 63 \ g/mol\\\\mass = 0.0627 \ g

Thus, the mass of nitric acid required to make the given solution is 0.0627 g.

Learn more about molarity of acids here: brainly.com/question/13864682

3 0
2 years ago
Explain the concept of electron density
Doss [256]
Electron density is the measure of theprobability of an electron being present at a specific location.

In molecules, regions of electron density are usually found around the atom, and its bonds. In de-localized orconjugated systems, such as phenol,benzene and compounds such as hemoglobin and chlorophyll, the electron density covers an entire region, i.e., in benzene they are found above and below the planar ring. This is sometimes shown diagrammatically as a series of alternating single and double bonds. In the case of phenol and benzene, a circle inside a hexagon shows the de-localized nature of the compound.

5 0
3 years ago
2h3po4 + 3mg(oh)2 → mg3(po4)2 + 6h2o phosphoric acid, h3po4, is neutralized by magnesium hydroxide, mg(oh)2, according to the eq
Rina8888 [55]
The balanced equation for the neutralisation reaction is as follows
2H₃PO₄ + 3Mg(OH)₂ --> Mg₃(PO₄)₂ + 6H₂O
stoichiometry of H₃PO₄ to H₂O is 2:6
number of H₃PO₄ moles reacted - 0.24 mol
if 2 mol of H₃PO₄ form 6 mol of H₂O
then 0.24 mol of H₃PO₄ forms - 6/2 x 0.24 = 0.72 mol of H₂O
therefore 0.72 mol of H₂O are formed 
4 0
3 years ago
What happens when sodium trioxocarbonate (IV) decahydrate is heated
PSYCHO15rus [73]

Answer:

the simplest answer is it loses the water (decahydrate) because it evaporates

5 0
3 years ago
A layer of sediment goes through a series of steps on its way to becoming sedimentary rock. These steps are summarized below. Re
gizmo_the_mogwai [7]

Explanation:

The steps involved in formation of a sedimentary rock are placed in the correct order as follows.

Step 1: The sediment is deposited by wind, flowing water, or other natural processes.

Step 2: The sediment is gradually buried and compacted.

Step 3: Dissolved minerals completely cement the sediment together.

As a result, it leads to the formation of a sedimentary rock.

3 0
4 years ago
Read 2 more answers
Other questions:
  • What is responsible for deepwater currents?
    14·2 answers
  • Calcium acetate is added to sodium carbonate
    14·1 answer
  • If you feed 100 kg of N2 gas and 100 kg of H2 gas into a<br> reactor. What is the limiting reactant?
    7·1 answer
  • What is the percentage of aluminum in aluminum oxide (al2o3?
    6·2 answers
  • 1.54 inches = millimeters
    10·1 answer
  • PLEASE HELP WILL MARK BRAINLEST!!!!
    11·1 answer
  • What is Cesium abbreviated
    9·1 answer
  • if you are given one element name and % by mass, how do you find the other element in the compound? give example plz
    9·1 answer
  • 1. Hay un gas con 700 milímetros de Mercurio de presión en 922 ml de volumen a 20 grados Celsius. Calcula la temperatura final a
    14·1 answer
  • If salt water has a density of 1.2 g/mL, which object listed below would SINK? *
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!