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
notsponge [240]
3 years ago
12

Question 6

Chemistry
1 answer:
crimeas [40]3 years ago
8 0

Answer: There are 10.5\times 10^{23} formula units in 1.75 mol sample of NaCl.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

1 mole of NaCl contains = 6.023\times 10^{23} formula units

Thus 1.75 mol of NaCl contains = \frac{6.023\times 10^{23}}{1}\times 1.75=10.5\times 10^{23} formula units

Thus there are 10.5\times 10^{23} formula units in 1.75 mol sample of NaCl.

You might be interested in
The difference between the density of gas and the density of liquid
eduard

The molecules of a liquid substance are closely packed together to each other. So as a result, liquids are denser than gases.

<h3>What is the difference between the density of liquid and gas?</h3>

A mass of gas will have a much larger volume compared to the same mass of liquid. This is because it has a much lower density. The density of gaseous oxygen is 0.0014 g/cm3. Density is ρ=Mass Volume. We know that gas will uniformly occupy more space than liquid whatever volume is available to it. On the other hand, solids and liquids, are closely packed as compared to gas and are high-density materials where ρ is relatively constant.

So we can conclude that the molecules of a liquid substance are closely packed together with each other. So as a result, liquids are denser than gases.

Learn more about Density: brainly.com/question/1354972

#SPJ1

7 0
1 year ago
Which arrows represents the phase transitions in which he's energy is gained
prisoha [69]

Answer:

Do you have a picture of this?

6 0
3 years ago
Which would be most suitable for measuring 2.7 mL of ethanol for addition to a reaction with acidified dichromate?
pochemuha

Answer : The correct option is, (C) 10-mL volumeric pipet.

Explanation :

Graduated cylinder : It is a measuring cylinder that is used to measure the volume of a liquid. It has a narrow cylindrical shape. The marked line drawn on the graduated cylinder shows the amount of liquid that has been measured.

Pipet : It is a type of laboratory equipment that is used to measure the volume of a liquid. It is small glass tube and the marked line drawn on the pipet. It is used to accurately measure and transfer of volume of liquid from one container to another.

Volumetric flask : It is a type of laboratory tool that is also used for measuring the volume of liquid. It is used to make up a solution to a known volume. It measure volumes much more precisely than beakers.

Beaker : It is a type of laboratory equipment that has cylindrical shape and it is used for the mixing, stirring, and heating of chemicals.

As per question, we conclude that the pipet is most precise than other devices because in pipet the marking lines are more accurate. Thus, it can be used to measure volume to precision.

Hence, the correct option is, (C) 10-mL volumeric pipet.

8 0
3 years ago
Which letter pattern best represents seafloor spreading? (Hint: Letter "f" represents the mid-
labwork [276]

Answer:

anna ou

Explanation:

6 0
3 years ago
Read 2 more answers
pls this is my second time asking these questions, i'm sorry, but i really need help!!! 1. what happens to atoms when there is a
dusya [7]

Answer:

the atoms of the original substances gain, lose and even share their very own electrons. write the symbols of the elements that form the compound. Write down the valency, and lastly go over valencies. This is all I got so far. I hope this helps

Explanation:

8 0
3 years ago
Other questions:
  • 1/2 * m * v ^ 2 = mgh
    14·1 answer
  • For the reaction 2C₆H₅COOH + 15O₂ → 14CO₂ + 6H₂O, which of the following options gives the correct product: product ratio? A.CO₂
    11·1 answer
  • Explain what states are changing in these examples
    14·1 answer
  • Which element of the periodic table is named after the moon
    9·1 answer
  • Please help i dont understand it
    8·2 answers
  • 1. Kaleigh notices when she goes to the beach that sometimes the water rises as high as the pier. At other times of the day, the
    8·1 answer
  • Please help me with this question. What are two elements that will react similarly to beryllium ?
    7·2 answers
  • What if the solubility of KNO3 at 60 celsius?
    14·1 answer
  • 2. What happens when hydrochloric acid (HCl) is added to the solution? Do the relative concentrations of H+, CH3COOH, or
    12·2 answers
  • PLEASE HELP WILL AMRK BRAINLIEST<br> what is the atomic mass of Na3PO4?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!