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
mario62 [17]
2 years ago
6

if a baloon filled with dry hydrogen weighs 35 gram,but weighs 440 grams when filled with the vapour of an organic compound. cal

culate the vapour density and RMM of the organic compound.​
Chemistry
1 answer:
Elan Coil [88]2 years ago
6 0

Answer:

1) The vapor density of the organic compound is approximately 12.57

2) The relative molar mass (RMM) of the organic compound is approximately 25.14 grams  

Explanation:

1) The mass of the balloon filled with dry hydrogen = 35 grams

The mass of the balloon filled with vapor of an organic compound = 440 grams

The vapor density = (Weight of a given volume of gas)/(Weight of equal volume of hydrogen)

The vapor density of the organic compound = (440)/(35) ≈ 12.57

The vapor density of the organic compound ≈ 12.57

2) The relative molar mass (RMM) = 2 × vapor density

The relative molar mass (RMM) of the organic compound = 2 × vapor density of the organic compound

The relative molar mass (RMM) of the organic compound ≈ 2 × 12.57 ≈ 25.14 grams  

The relative molar mass (RMM) of the organic compound ≈ 25.14 grams  

You might be interested in
At 3 atm pressure the volume of gas is 1200ml. What pressure is required to reduce the volume of the gas to 300ml if the tempera
Rufina [12.5K]
States that when a gas is held at a constant temperature and mass in a closed container, the volume and pressure vary inversely. The equation to use is P1V1=P2V2.

Given
V1=200mL×1L1000mL=0.2 L
P1=700 mmHg
V2=100mL×1L1000mL=0.1 L

Unknown
P2

Equation
P1V1=P2V2

Solution
Rearrange the equation to isolate P2 and solve.

P2=P1V1V2

P2=(700mmHg×0.2L)0.1L=1400 L, which must be rounded to 1000 L because all of the measurements have only one significant figure.

7 0
3 years ago
9) Give the set of four quantum numbers that could represent the extra electron added (using the Aufbau principle) to the neutra
Pie

Answer:

See explanation

Explanation:

9) If an extra electron is added to the neon atom, then the electronic configuration becomes; 1s2 2s2 2p6 3s1

This last electron has quantum numbers;

n=3, l=0, m=0 and s = +1/2

This is so because the 2s level is already filled so the extra electron must go into the 3s level. The orbital quantum number and the magnetic quantum number for the s orbital is zero.

10) Electron affinity is the energy released when one mole of gaseous atoms accept one mole of gaseous electrons to form one mole of gaseous ions having a negative charge.

In the second period, fluorine has the greatest electron affinity since electron affinity increases across the period. The noble gas, neon has an electron affinity of 0KJ/mol.

11) Ionization energy decreases down the group but increases across the period due to increase in the size of the nuclear charge and decrease in the distance between the nucleus and the outermost electron. Hence, the process; Br+(g) ---->Br2+(g) + e- has the greatest ionization energy. Recall that the second ionization is always higher than the first ionization energy.

12)The order of decreasing metallic character here is K> As> P. Even though As and P belong to the same group, we must note that metallic character increases down the group hence the order written above.

3 0
2 years ago
What is the approximate mass of one mole of zinc?
VikaD [51]
The answer is (a) 30g. Zinc = 30. 1 mole = 30 x 1 = 30g
6 0
3 years ago
What volume of 0.25 M HCl would be needed to neutralize 45 mL of 0.12 M solution of Mg(OH)₂
dalvyx [7]

Answer:

0.38dm³

Explanation:

you just du-mb cuh

I'm jp ig

4 0
2 years ago
The decomposition of in solution in carbon tetrachloride is a first-order reaction: The rate constant at a given temperature is
Elan Coil [88]

Answer:

see below

Explanation:

The rate constant is missing in question, but use C(final) = C(initial)e^-kt = 0.200M(e^-k·10). Fill in k and compute => remaining concentration of reactant

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is true about the frequencies of electromagnetic radiation
    11·1 answer
  • How do you describe how sugar dissolves in tea using the big idea of particles?
    15·2 answers
  • Mars is 7AU from earth, what is that in mm
    10·1 answer
  • Which of the following statements is FALSE?
    14·2 answers
  • Use the ideal gas law to calculate the concentrations of nitrogen and oxygen present in air at a pressure of 1.0 atm and a tempe
    13·1 answer
  • A solution of hydrofluoric acid, HF(aq), is at equilibrium. How would the system change if more HF were added to the solution?
    7·2 answers
  • Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 1.27 cubic meter of water.
    5·1 answer
  • A dog sits 1.70 m from the center of a merrygo-round with an angular speed of 1.27 rad/s. If the magnitude of the force that mai
    10·1 answer
  • Write the balanced neutralization reaction that occurs between H 2 SO 4 and KOH in aqueous solution. Phases are optional. neutra
    8·1 answer
  • 50.00 ml of nitric acid (of unknown
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!