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
arsen [322]
3 years ago
5

Nitrogen gas effuses through an opening 1.59 times faster than an unknown gas.

Chemistry
1 answer:
Elodia [21]3 years ago
5 0
A) Nitrogen has an ATOMIC mass number of 14, but nitrogen gas consists of N₂ molecules, so the mass to use in this problem is 28 g/mol. Rates of effusion ∝ 1/√(mass), so 

<span>√(mass unknown) /√28 = (rate N₂ effusion)/(rate unknown effusion) = 1.59 </span>
<span>∴ mass unknown = (1.59)²(28) = 70.78 g/mol </span>

<span>B) One possible gas that comes close for this mass is NF₃.</span>
You might be interested in
The energy of moving atoms is
balandron [24]

The answer is Thermal Energy :)

4 0
3 years ago
Read 2 more answers
A body moving with a velocity of 20 m/s begins to accelerate at 3 m/s2. How far does the body move in 5 seconds?
Norma-Jean [14]
The distance covered will be:

d = v_0\cdot t + \frac{1}{2}a\cdot t^2 = 20\frac{m}{s}\cdot 5\ s + \frac{5}{2}\frac{m}{s^2}\cdot 5^2\ s^2 = \bf 162,5\ m

The correct answer is D).
8 0
3 years ago
Read 2 more answers
When potassium hydroxide and barium chloride react, potassium chloride and barium hydroxide are formed. The balanced equation fo
Natasha_Volkova [10]
The answer is <span> 2KOH + BaCl2 --> 2KCl + </span>
6 0
3 years ago
Read 2 more answers
Given the equation representing a reversible reaction:which formula represents the h+ acceptor in the forward reaction?
AnnyKZ [126]
Question is incomplete. Complete question is attached below
.............................................................................................................................

Answer: Option A: HCO3-(aq.)

Reason:
From the reaction, it can be seen that following reaction occurs in forward direct

HCO3-(aq)     +     H2O(l)      →      H2CO3(aq)     +      OH-(aq)

In above forward reaction, HCO3- accepts proton from H2O to generate H2CO3. Thus, according to Lowry and Bronsted theory of acid-base, HCO3- is a base, while H2CO3 is a conjugate acid. 

8 0
3 years ago
What is wrong with the way that the hypothesis, “Chocolate may cause pimples”, is written?
DaniilM [7]

Answer:

More sweet and cute with the little ones on the surface and a little more

8 0
3 years ago
Read 2 more answers
Other questions:
  • A certain reaction has an activation energy of 28.90 kJ / mol. At what Kelvin temperature will the reaction proceed 5.00 times f
    8·1 answer
  • Approximately how many mineral species have scientists identified?
    11·2 answers
  • Complete the following road map for converting volume of A to volume of B for a titration of aqueous solution A with aqueous sol
    8·1 answer
  • Bridget performed an investigation to determine if a television set transformed electrical energy into other types of energy. Sh
    9·1 answer
  • Name the type of reaction shown:2C4H10+13O2=8CO2+10H2O
    7·1 answer
  • Are the cells in this image prokaryotic or eukaryotic
    6·1 answer
  • The density of helium in a balloon is 1.18 g/L. If a
    7·1 answer
  • A 16.42 mL volume of 0.1327 M KMnO4 solution is needed to oxidize 25.00 mL of a FeSO4 solution in acidic medium. What is the con
    12·1 answer
  • Fav music Artist???????????
    5·2 answers
  • The reaction
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!