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
tigry1 [53]
3 years ago
8

What is the molecular weight of a gas that diffuses through a porous membrane 2.17 times faster than Xe?

Chemistry
1 answer:
vivado [14]3 years ago
8 0

Answer: The molecular weight of the gas 28. The gas is probably N2

Explanation:Please see attachment for explanation

You might be interested in
What mass (in mg) does 2.63 moles of nickel have?
Romashka-Z-Leto [24]
Atomic mass Nickel ( Ni) = 58.69 a.m.u

1 mole ------------- 58.69 g
2.63 moles -------- ??

2.63 x 58.69 / 1 => 154.3547 g

1 g ------------- 1000 mg
154.3547 g ---- ??

154.3547 x 1000 / 1

=> 154,354.7 mg
6 0
3 years ago
What are the correct coefficients when this chemical equation is<br> balanced? *<br> P4 + 02 P2O5
finlep [7]

Answer:

What are the correct coefficients when this chemical equation is

balanced? *

P4 + 02 P2O5

<h2>1, 5, 2</h2>

Explanation:

For this reaction we have a combination reaction. Balancing Strategies: This combination reaction is a lot easier to balance and if you can get an even number of oxygen atoms on the reactants side of the equation.

3 0
2 years ago
What volume of a 2.0M NaOH(aq) is needed to completely neutralize 24 milliliters of 0.5M HCl(aq)?
borishaifa [10]

Answer:

V_{base}=6.0mL

Explanation:

Hello there!

In this case, by considering that the reaction between sodium hydroxide and hydrochloric acid is in a 1:1 mole ratio of these two reactants, we are able to use the following equation relating the concentration and volume of each one:

M_{acid}V_{acid}=M_{base}V_{base}

In such a way, by solving for the volume of the base, we will obtain:

V_{base}=\frac{M_{acid}V_{acid}}{M_{base}} \\\\V_{base}=\frac{0.5M*24mL}{2.0M}\\\\V_{base}=6.0mL

Regards!

8 0
3 years ago
The metal tantalum becomes superconducting at temperatures below 4.483 K. Calculate the temperature at which tantalum becomes su
masha68 [24]

Answer:

The correct answer is "-268.667°C".

Explanation:

Given:

Temperature,

= 4.483 K (below)

Now,

The formula of temperature conversion will be:

⇒ T(^{\circ} C)=T(K)-273.15

By putting the values, we get

⇒            =4.483-273.15

⇒            =-268.667^{\circ} C

Thus the above is the correct answer.

3 0
3 years ago
Suppose that Daniel has a 3.00 3.00 L bottle that contains a mixture of O 2 O2 , N 2 N2 , and CO 2 CO2 under a total pressure of
Alenkinab [10]

Answer:

Partial pressure O₂ → 2.74 atm

Explanation:

Let's analyse the data given:

Volume → 3L

In the bottle there is a mixture of gases that contains, O₂, N₂ and CO₂.

Total pressure is 4.80 atm

Let's apply the Ideal Gases Law to determine the total moles of the mixture

P . V = n .  R. T

4.80 atm . 3L = n . 0.082 . 273K

n = 4.80 atm . 3L / 0.082 . 273K → 0.643 moles

We apply the concept of mole fraction:

Mole fraction of a gas X = moles of gas X / Total moles

Mole fraction of a gas X = Partial pressure X / Total pressure

In a mixture, sum of mole fraction of each gas = 1

We determine mole fraction of N₂ → 0.230 / 0.643 = 0.357

We determine mole fraction of CO₂ → 0.350 atm / 4.80 atm = 0.0729

1 - mole fraction N₂ - mole fraction CO₂ = mole fraction O₂

1 - 0.357 - 0.0729 = 0.5701 → mole fraction O₂

We replace in the formula: Mole fraction O₂ = Partial pressure O₂ / 4.80 atm

0.5701 . 4.80 atm = Partial pressure O₂ → 2.74 atm

5 0
3 years ago
Read 2 more answers
Other questions:
  • A mixture of CO (g) and excess O2(g) is placed in a 1.0 L reaction vessel at 100.0C and a total pressure of 1.50 atm. The CO is
    5·1 answer
  • Determine the volume of fluid in the graduated cylinder shown. 22.5 mL 22 mL 23.0 mL 23 mL
    15·1 answer
  • What are the 6 Steps in the Nitrogen Cycle? Using = NH3, Denitrification, No2 and NO3, Nitrification Bacterial nitrogen fixation
    8·1 answer
  • What does centripetal force mean?
    8·1 answer
  • The rate constant for this zero‑order reaction is 0.0230 M ⋅ s − 1 at 300 ∘ C. A ⟶ products How long (in seconds) would it take
    8·1 answer
  • Is heat of fusion an extensive or intensive property? Why?
    6·1 answer
  • What is the electron dot structure of AsClBr2? Pls pls pls help me
    13·1 answer
  • In the outline of the Periodic Table below, some elements are shown as numbers.
    7·2 answers
  • 2Ag (s) + H2S(s) → Ag2S(s) + H2(g)
    9·1 answer
  • What is the electron configuration for helium (He)?<br> 1s1<br> 1s2<br> 1s22s1<br> 1s22s2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!