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
hodyreva [135]
3 years ago
13

can I get some help.and no link I have the table already I just need the information​. it's graded please​

Chemistry
1 answer:
faltersainse [42]3 years ago
4 0

Answer:

You did very well and its correct.

Explanation:

Great Job!

You might be interested in
A gaseous compound is 30.4 % N and 69.6% OF. A 5.25 g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 958
Harman [31]

Answer:

The molecular formula = N2O4

Explanation:

<u>Step 1</u>: Data given

A gaseous compound is 30.4 % N and 69.6%

Mass of the compound = 5.25 grams

Volume of the gas = 1.00 L

Pressure of the gas = 958 mmHg = 1.26 atm

Temperature of the gas = -4 °C = 273 -4°C = 269 Kelvin

Molar mass of N = 14 g/mol

Molar mass of O = 16 g/mol

<u>Step 2</u>: Calculate mass of N

Mass of Nitrogen = 5.25 grams * 0.304 = 1.596 grams

<u>Step 3:</u> Calculate mass of O

Mass of Oxygen = 5.25 grams * 0.696 = 3.654 grams

<u>Step 4:</u> Calculate number of moles N

Number of moles N = Mass of N/ Molar mass of N

Moles of N = 1.596 grams / 14g/mol

Moles of N = 0.114 moles N

<u>Step 5:</u> Calculate moles of O

Moles O = 3.654 grams / 16 g/mol

Moles 0 = 0.2884 moles

<u>Step 6:</u> Calculate empirical formule

We calculate the empirical formule by dividing number of moles by the smallest number of mol

N : 0.114 / 0.114 = 1

O: 0.2284 / 0.114 = 2

Empirical formule = NO2

<u>Step 7: </u>Calculate number of moles of 5.25 g sample via gas law:

p*V = nRT

⇒ with p = the pressure = 1.26 atm

⇒ with v = 1.00 L

⇒ with n = the number of moles = TO BE DETERMINED

⇒ with R = the gas constant = 0.08206 L*atm/ K*mol

⇒ with T = the temperature = 269 K

number of moles n = (p*V)/(R*T)

n = (1.26*1L)/(0.08206*269)

n = 0.057 mol  

<u>Step 8:</u> Calculate molar mass of the compound

This means 5.25 grams of the gas = 0.057 moles

So 1 mol of the compound has a molar mass of: 5.25 / 0.057 = 92.11 g/mol

<u>Step 9</u>: Calculate molar mass of the empirical formula NO2

N = 14 g/mol

O = 16 g/mol

NO2 = 14 + 16 + 16 = 46 g/mol

The empirical formule NO2 has a molar mass of 46 g/mol

<u>Step 10</u>: Calculate molecular formula

92.11 / 46 = 2

This means the empirical formula should be multiplied by 2

2*(NO2) = N2O4

The molecular formula = N2O4

8 0
3 years ago
What is the mass of a 0.23 L substance, if it has density of 1.90 g/mL?
jolli1 [7]

Answer:

437 g

Explanation:

as mass = density × volume

8 0
3 years ago
Question 1 (1 point) What is white light? The type of light that is found in x-rays The type of light given off by the sun and l
ZanzabumX [31]

apparently colorless light, for example ordinary daylight. It contains all the wavelengths of the visible spectrum at equal intensity.

4 0
3 years ago
Read 2 more answers
Why the size of Na+ is smaller then Na <br><br>​
Rufina [12.5K]
Because Na+ has less electrons than Na which means Na+ will be a smaller atom (give me brainliest please)
5 0
3 years ago
How many 5 MB mp3 files can be stored on a 1 GB flash drive?
tester [92]

Answer:

200files

Explanation:

5 0
3 years ago
Other questions:
  • In examining an organic compound, you discover that it contains the following functional group. What class of organic compound i
    14·2 answers
  • The answer that he gave was wrong
    6·1 answer
  • In performing this week's bromination reaction, if you were to start with 126 mg of acetanilide (135.17 g/mol), calculate the th
    11·1 answer
  • _______ cause(s) empty space to expand and gravitational pull to weaken
    10·1 answer
  • What is water clarity and why is it important?
    12·2 answers
  • Sound is energy moving in
    9·1 answer
  • Ummmm!! Can somebody please help me answer this question
    6·2 answers
  • 2)What is the downside to having concrete as the second most consumed<br> resource in the world?
    11·1 answer
  • 2. Tania went outside and made two observations of the Moon that were several days apart. Her
    11·1 answer
  • In a chemical reaction, what are the numbers in front of an element called?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!