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
jarptica [38.1K]
3 years ago
11

Momentum is mass times A. acceleration B. velocity C. distance

Chemistry
1 answer:
shepuryov [24]3 years ago
4 0

B. velocity

This is the answer

You might be interested in
Propiedades Químicas del elemento Astato. por favor es urgente!
Zarrin [17]
I'm not to sure but try soy
4 0
3 years ago
Aspirin sun thesis Green Chemistry and Assime the aspirin is prepared by the following reaction and that 10.09. of salicylic aci
klemol [59]

<u>Answer:</u> The percentage yield of aspirin is 38.02 %.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}      .....(1)

  • <u>For salicylic acid:</u>

Given mass of salicylic acid (C_7H_6O_3) = 10.09 g

Molar mass of salicylic acid (C_7H_6O_3) = 138.12 g/mol

Putting values in equation 1, we get:

\text{Moles of salicylic acid}=\frac{10.09g}{138.12g/mol}=0.0730mol

The chemical equation for the formation of aspirin follows:

C_7H_6O_3+C_4H_6O_3\rightarrow C_9H_8O_4+CH_3COOH

As, acetic anhydride is present in excess. So, it is considered as an excess reagent.

Thus, salicylic acid is a limiting reagent because it limits the formation of products.

By Stoichiometry of the reaction:

1 mole of salicylic acid produces 1 mole of aspirin.

So, 0.0730 moles of salicylic acid will produce = \frac{1}{1}\times 0.0730=0.0730mol of aspirin

Now, calculating the mass of aspirin from equation 1, we get:

Molar mass of aspirin = 180.16 g/mol

Moles of aspirin = 0.073 moles

Putting values in equation 1, we get:

0.073mol=\frac{\text{Mass of aspirin}}{180.16g/mol}\\\\\text{Mass of aspirin}=13.15g

To calculate the percentage yield of aspirin, we use the equation:

\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Experimental yield of aspirin = 5.0 g

Theoretical yield of aspirin = 13.15 g

Putting values in above equation, we get:

\%\text{ yield of aspirin}=\frac{5.0g}{13.15g}\times 100\\\\\% \text{yield of aspirin}=38.02\%

Hence, the percent yield of aspirin is 38.01 %.

6 0
3 years ago
Which of the following is an example of a Lewis acid?
Agata [3.3K]

Answer:

C. BF3

Explanation:

The boron in BF3 is electron poor and has an empty orbital, so it can accept a pair of electrons, making it a Lewis acid.

4 0
3 years ago
Which compound most likely contains polar covalent bonds?
marin [14]
I would say water; water is extremely polar, and this is why it can break one of the strongest bonds, ionic bonds. NaCl, as you probably know, is a salt, and dissolves in water. However, the ionic bond holding the Na+ and the Cl- is extremely strong; the boiling point of NaCl is at 1413 degrees celcius (water is at 100 degrees celcius). This means that it requires A LOT of energy to break the bond, but water is able to dissolve and break the bond very easily. It is very polar, so I would answer your question with water. And the bond connecting the H and the O is a covalent bond.
3 0
3 years ago
ILL GIVE YOU BRAINLIEST &lt;3
Paha777 [63]

Answer:

Should be a 15 imo

Explanation:

N is one, 4H = 4, S 2 because of the 2 and O 8 because of the 4 and the 2 before the S.

5 0
3 years ago
Other questions:
  • 6p, 6q, 6r, and 6s are like terms. true false user: -8 is a term. true false
    13·2 answers
  • The first element on the periodic table of elements is hydrogen true or false
    5·2 answers
  • Why do atoms always contain the same number of electrons and protons?
    5·2 answers
  • In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})?
    7·1 answer
  • When an ice cube melts what happens to the matter that once made up the cube
    12·1 answer
  • Juliette uses 20 N to move her desk 5 meters. Which of the following is true?
    13·2 answers
  • Do yeast need air to release carbon dioxide?
    14·1 answer
  • how does atomic radius change as you move down a group/family and as you move across a period/row on the periodic table? what ca
    8·1 answer
  • An atom is found in group 17 and contains 10 neutrons. How many valence
    12·1 answer
  • Explain whether indicator paper or a pH meter has the higher resolution
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!