Ask Question
ChemistryChemistry
3 October, 03:27

For each pair below, select the sample that contains the largest number of moles.

Pair A

2.50 g O2

A. N. S: 2.50 g N2

Pair B

21.5 g N2

A. N. S: 15.2 g CO2

Pair C

0.054 g O2

A. N. S:0.081 CO2

+3
Answers (2)
  1. 3 October, 06:01
    0
    Pair A:

    Answer:

    nitrogen

    Moles of oxygen:

    Number of moles = mass / molar mass

    Number of moles = 2.50 g / 32 g/mol

    Number of moles = 0.08 mol

    Moles of nitrogen:

    Number of moles = mass / molar mass

    Number of moles = 2.50 g / 28 g/mol

    Number of moles = 0.09 mol

    Pair B:

    Answer:

    nitrogen

    Moles of nitrogen:

    Number of moles = mass / molar mass

    Number of moles = 21.50 g / 28 g/mol

    Number of moles = 0.77 mol

    Moles of carbon dioxide:

    Number of moles = mass / molar mass

    Number of moles = 15.2 g / 44 g/mol

    Number of moles = 0.341 mol

    Pair C:

    Answer:

    Both have same number of moles.

    Moles of oxygen:

    Number of moles = mass / molar mass

    Number of moles = 0.054 g / 32 g/mol

    Number of moles = 0.002 mol

    Moles of carbon dioxide:

    Number of moles = mass / molar mass

    Number of moles = 0.081 g / 44 g/mol

    Number of moles = 0.002 mol
  2. 3 October, 06:14
    0
    A: 2.50 g n2

    B:21.5 g N2

    C:0.081 CO2
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “For each pair below, select the sample that contains the largest number of moles. Pair A 2.50 g O2 A. N. S: 2.50 g N2 Pair B 21.5 g N2 A. ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
When a chemical reaction takes in energy it might feel cold hot boiling electric
Answers (1)
The chemical mixture that composes our atmosphere is called
Answers (1)
A concrete barrier in a parking lot a structure of mass, frame, or shell? Which one would it be?
Answers (1)
What acceleration does the force of earths gravity produce? (a) 9.8 m/s/s (b) It varies depending on how long it has been falling. (c) Gravity does not produce an acceleration. (d) It changes direction every 9.8 meters.
Answers (1)
Elements that can conduct electricity are classified as
Answers (1)
New Questions in Chemistry
Zoom all the way in to Daphne Major. Describe its appearance in two sentences.
Answers (1)
An alloy contains 56 g of pure silver and 17 g of pure copper. What is the percentage silver in the alloy
Answers (1)
Suppose there is 0.63 g of HNO3 per 100 mL of a particular solution. What is the concentration of the HNO3 solution in moles per liter?
Answers (1)
Of the three thermodynamic quantities, δg, δh, δs, which is most useful for determining spontaneity of a reaction?
Answers (1)
Does the density of an object depend on its size? Explain?.
Answers (1)
Home » Chemistry » For each pair below, select the sample that contains the largest number of moles. Pair A 2.50 g O2 A. N. S: 2.50 g N2 Pair B 21.5 g N2 A. N. S: 15.2 g CO2 Pair C 0.054 g O2 A. N. S:0.081 CO2
Sign Up Forgot Password?