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
allsm [11]
2 years ago
14

What is the molar Mass of 2.4g of oxygen

Chemistry
1 answer:
liq [111]2 years ago
4 0
<span>2.4g of a compound of carbon, hydrogen and oxygen gave on combustion, 3.52g of CO2 and 1.44g of H2O. The relative molecular mass of the compound was found to be 60. a)What are the masses of carbon, hydrogen and oxygen in 2.4g of the compound? b)What are the emperical and ..</span>
You might be interested in
How many atoms are there in 5.8 mol of iron
kkurt [141]
4.0 mol. 6.02 x 10. 23 atoms. 3. How many moles are in 2.5g of lithium? 2.5 grams Li. 1 mole. = 0.36 mol. 6.9 g. 4. Find the mass of 4.8moles of iron. 4.8 moles.
5 0
3 years ago
4.2g of cerium reacted with oxygen to form 5.16g of an oxide of cerium. Find
olganol [36]

Answer:

CeO₂

Explanation:

Hello!

In this case, since we are given the mass of both cerium and the cerium oxide, we can first compute the moles of cerium and the moles of oxygen as shown below:

n_{Ce}=4.2gCe*\frac{1molCe}{140.12gCe}=0.03molCe\\

m_O=5.16g-4.2g=0.96gO\\\\n_O=0.96g*\frac{1molO}{16.0gO} =0.06molO

Now, we simply divide each moles by 0.03 as the fewest moles in the formula to obtain the simplest formula (empirical formula) of this oxide:

Ce=\frac{0.03}{0.03}=1\\\\O =\frac{0.06}{0.03}=2

Thus, the formula turns out:

CeO_2

Regards!

6 0
2 years ago
Identify the conjugate acid-base pair in this balanced equation:<br> H2SO4 + 2NaOH → 2H2O + Na2SO4
Ludmilka [50]
H2SO4/H2O
H2SO4/Na2SO4
NaOH/H20
NaOH/Na2SO4
Correct answer is H2SO4/Na2SO4
4 0
3 years ago
Read 2 more answers
At this temperature, 0.300 mol H 2 0.300 mol H2 and 0.300 mol I 2 0.300 mol I2 were placed in a 1.00 L container to react. What
Alekssandra [29.7K]

Answer:

The concentration of HI present at equilibrium is 0.471 M.

Explanation:

5 0
3 years ago
A 15 kg television sits on a shelf at a height of 0.3. How much gravitational potential energy is added to the television when i
slavikrds [6]

Answer:

Explanation:

Answer:

Explanation:

Answer:

Explanation:

Answer:

Explanation:

Answer:

Explanation:

7 0
2 years ago
Other questions:
  • The testable question in a science investigation reads: “How does the size of a motor affect the speed of the vehicle?” What is
    7·1 answer
  • What change shows a tenfold increase in concentration of h+ ions?
    7·1 answer
  • Convection of Heat occurs in what type(s) of matter? (Solid, Liquid, or Gas)
    10·1 answer
  • Write in standard notation: 3.2x 103​
    6·1 answer
  • A polar covenant bond is likely to form between two atoms that ________.
    6·1 answer
  • Answer to this question?
    14·2 answers
  • 1.<br> What is a chemical reaction?
    12·1 answer
  • Decay chains exist because
    11·1 answer
  • How many electrons will aluminum gain or lose in forming an ion?
    10·2 answers
  • Can someone answer these questions about the LACK OF CLEAN DRINKING WATER? PLS. I will give 30 pts.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!