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
liq [111]
3 years ago
6

A mixture of helium and krypton gases at a total pressure of 904 mm hg contains helium at a partial pressure of 718 mm hg. if th

e gas mixture contains 0.777 grams of helium, how many grams of krypton are present?
Chemistry
1 answer:
marishachu [46]3 years ago
3 0

If helium has partial pressure of 718 mmHg, the krypton must have (904 mmHg - 718 mmHg = ) 186 mmHg. Since temperature and volme are the same for each gas, the mole ratio of helium to krypton must be 718 / 186. The dimensional analysis then yields:

0.777 g He * 1 mol He / 4.00 g He * 186 mol Kr / 718 mol He * 83.80 g Kr / mol Kr = 4.22 g Kr.

You might be interested in
if an unknown sample solution is prepared by diluting 10.00 ml of the original solution to a total volume of 100.0 ml with deion
Usimov [2.4K]

The dilution factor of the unknown sample is 10. The dilution factor of a solution refers to the ratio of the final volume of the now diluted solution to the initial volume of the of the initial concentrated solution.

Mathematically;

The dilution factor is given by the formula;

Dilution factor = Final volume of the now diluted solution/ Initial volume of more concentrated solution

Final volume of the now diluted solution = 100.0 ml

Initial volume of more concentrated solution = 10.00 ml

Dilution factor = 100.0 ml/10.00 ml

Dilution factor =  10

Learn more: brainly.com/question/20113402

6 0
2 years ago
Pls help! It takes 1 molecule of nitrogen and 3 molecules of hydrogen to produce 2 molecules of ammonia using the following form
mariarad [96]

Answer:

The correct answer is option ( D )

5 0
3 years ago
Why does a pair of jeans look blue?
juin [17]

Answer:

A

Explanation:

I believe the answer is A. An object is every color except the color we see, or the color that bounces off of said object. Therefore if a carpet is yellow, the carpet is every color but yellow. Yellow is the color that it rejects, bounces off of it, and the one we see.

3 0
3 years ago
Read 2 more answers
Acids are a class of chemical compounds which produces ________? , ___? , in aqueous solution
Sloan [31]
Hydrogen ions,H+ ions??
6 0
3 years ago
Solid aluminum oxide and hydrogen gas are heated, molten aluminum and water vapor form?
ruslelena [56]

Answer:

No

Explanation:

The answer would be no.

<em>Solid aluminium oxide cannot react with hydrogen gas to produce molten aluminium and water due to the fact that, on one hand, hydrogen as an element is not a strong enough reducing agent that can remove oxygen from the aluminium oxide.  On the other hand, aluminium is more reactive than hydrogen and hence, cannot be displaced by hydrogen in solution.</em>

4 0
3 years ago
Other questions:
  • What is one factor that contributes to seasons occurring in Pennsylvania?
    7·1 answer
  • Matter can totally be created or destroyed.<br><br> True<br> False
    6·1 answer
  • What are the effects of a warm temperature on gas particles?
    6·2 answers
  • What are the 3 gases on Table G (of the chemistry reference table)?
    11·1 answer
  • Which of the following statements is completely correct? a. NH3 is a weak base, and H2CO3 is a strong acid. b. H2CO3 is a strong
    14·2 answers
  • Name the chief allotopes of sulphur.How would you show that all the allotropes of sulphur consist of only sulphur?​
    5·1 answer
  • BOTH acids and bases
    11·2 answers
  • Some of the following descriptions of a parrot are qualitative and some are quantitative. Which of the descriptions are qualitat
    13·2 answers
  • Determine whether the bonds in CCl4 and N2 are polar or non-polar. If the bond is polar, assign the partial positive and negativ
    10·1 answer
  • Over time Pangaea broke apart to form other continents.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!