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
Kay [80]
3 years ago
15

If we take 2.2 grams of CO2, 6.02 X 1021 atoms of nitrogen and 0.03 gram atoms of sulphur , then the molar ratio of C, N, and O

is .
Chemistry
2 answers:
Irina18 [472]3 years ago
8 0

Answer : The molar ratio of C, N and O are 0.05 : 0.01 : 0.1 or 5 : 1 : 10

Explanation :

First we have to calculate the number of moles C,N\text{ and }O.

(1) 2.2 grams of CO_2

First we have to calculate the moles of CO_2

\text{Moles of }CO_2=\frac{\text{Mass of }CO_2}{\text{Molar mass of }CO_2}=\frac{2.2g}{44g/mole}=0.05moles

Now we have to calculate the moles of carbon and oxygen.

As, 1 mole of CO_2 contains 1 mole of carbon

So, 0.05 mole of CO_2 contains 0.05 mole of carbon

The number of moles of carbon (C) = 0.05 mole

As, 1 mole of CO_2 contains 2 mole of oxygen

So, 0.05 mole of CO_2 contains 2\times 0.05=0.1 mole of oxygen

The number of moles of oxygen (O) = 0.1 mole

(2) 6.02\times 10^{21} atoms of nitrogen.

As, 6.02\times 10^{23} atoms of nitrogen present in 1 mole of nitrogen

So, 6.02\times 10^{21} atoms of nitrogen present in \frac{6.02\times 10^{21}}{6.02\times 10^{23}}=0.01 mole of nitrogen

The number of moles of nitrogen (N) = 0.01 mole

From this we conclude that, the molar ratio of C, N and O are:

C : N : O = 0.05 : 0.01 : 0.1

or,

C : N : O = 5 : 1 : 10

Therefore, the molar ratio of C, N and O are 0.05 : 0.01 : 0.1 or 5 : 1 : 10

Zanzabum3 years ago
7 0

Answer: -

5 : 1 : 3

Explanation: -

Mass of CO₂ = 2.2 g

Molar mass of CO₂ = 44 g / mol

Number of moles of CO₂ = \frac{Mass}{Molar mass}

                                          = \frac{2.2}{44}

                                         = 0.05 mol

Number of atoms of nitrogen = 6.02 x 10²¹

Number of moles of nitrogen = \frac{Number of atoms of nitrogen}{Avogadro's number}

                                                 = \frac{6.02x1021}{6.02x1023}

                                                = 0.01 mol

0.03 gram atom of sulphur means 0.03 moles of sulphur.

Thus the mole ratio of CO₂ : N : S = 0.05 : 0.01 : 0.03

                                                         = 5 : 1 : 3

You might be interested in
Estimate the coordination number for the cations in each of these ceramic oxides and also the coordination numbers of the oxygen
Juli2301 [7.4K]

Answer:

CN cation, anion ] respectively are thus [6,4] , [2,3] ,[6,6] , [6,6] , [6,3] , [12,6,2] , [6], [6].

Explanation:

The coordination number CN is the number of ligand atoms bonded (coordinate bonds) directly to the central of the metal ion. It is not the same as the oxidation state of the metal ion or complex.

Coordination number – the number of anions surrounding the cation.

In solving for CN we need to understand Pauling's rules.

According to Linus Pauling, 1932

“Pauling’s rules” for crystal structures, makes assumptions for ionic bonding. It states that ionic structure is understood using electrostatic rules of attraction and repulsion.

Cations and anions surround each other to neutralize charge – and these one can rationalize crystal structure with coordination number.

Ratio of cationic/anionic radius

• The structure of D-Al2O3 results in coordination number of 6 and 4 for cation and anion respectively.

• The average oxygen coordination number in v-B2O3 is equal to the average cation coordination number × cation/anion ratio (2/3).

• Co-ordination number of Ca2+ ion is =6;

In CaO crystal, Ca2+ is a cation and O2- is an anion. Cationic (Ca2+) has radius 100 pm and anionic (O2-) has radius  145 pm.

Ratio of cationic/anionic radius is:

r⁺/r⁻ = 100 / 145

r⁺/r⁻ = 0.69

CaO will form FCC lattice.

Coordination number in FCC lattice is 6. Therefore CN of Ca2+ = 6.

For MgO:

r Mg2+/ r O2- = 86pm / 126 pm =0.683

The cordination number for the cation is 6. MgO with ions Mg+2 and O-2 will have a AX type stochiometry exhibiting the

crystal structure of sodium chloride.

For TiO2:

The CN of the titanium (IV) cation is 6, which is twice the CN of the oxide anion, which is 3.

This fits with the formula unit of TiO2, since there are twice as many O2− ions as Ti4+ ions.

Consequently the crystal structure of all ionic compounds reflects the formula unit.

For LaAlO3 a Cubic perovskites (ABX3)

In perovskite structures, B cations are coordinated by six X anions, while A

cations present CN = 12 (also coordinated by X anions). The X anions have CN = 2, being

coordinated by two A cations, since the distance A-O is about 40% larger than the B-O

bond distance. The correct ionic radii (rA, rB, rX), taken from one of Shannon’s work.

rA = 1.36 pm

rB = 0.535 pm

rX = 1.35 pm

Forsterite Mg2SiO4

We have mixed sites of Si4+ in tetrahedral site, Mg2+ in octahedral site, O atoms anions .

They all forms octahedral chains/strips. The CN is estimated to (6) octahedral, with an average ratio 0.414

Nickel Cobaltite Ni(Co2O4)3

bidentate ligand includes the Oxalate, three oxalate ligands form six-coordinate bonds around the Ni2+ ion.

Co-ordinate number of Nickel in [Ni(C2​O4​)3​] 4− is 3×2=6.

5 0
3 years ago
Natural atom of the same element may have the same _________?
Minchanka [31]

Answer:B

Explanation:

4 0
3 years ago
Read 2 more answers
What are the functions of protein in organisms?
Juliette [100K]
Proteins make up many many important structures in our cells ( ex : receptors , Enzymes , integral proteins and so on ) 
3 0
2 years ago
How can constraints be used to help define the problem?
vitfil [10]

Answer:

Constraints are restrictions that need to be placed upon variables 

Explanation:

Constraints are restrictions (limitations, boundaries) that need to be placed upon variables used in equations that model real-world situations. It is possible that certain solutions which make an equation true mathematically, may not make any sense in the context of a real-world word problem.

6 0
3 years ago
What is the percent of oxygen by mass in C2H402
Rom4ik [11]

Answer:

53.3 %.

Explanation: C2H4O2. = 2 * 12.011 + 4 * 1.008 + 2 * 15.999. = 60.052.

6 0
2 years ago
Other questions:
  • The function of a specific enzyme is most directly influenced by its
    11·1 answer
  • The solar wind can interact with Earth's magnetic field to create powerful electric currents that cause .......... near the pole
    7·1 answer
  • Which of the following is a hypothesis that you could form about how soil
    8·1 answer
  • A gaseous substance turns into a solid. Which best describes this change? A substance that has a specific shape changes to a sub
    13·2 answers
  • Watch the video to determine which of the following relationships correctly depict the relationship between pressure and volume
    15·1 answer
  • A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul
    10·1 answer
  • A certain reaction is endothermic in the forward direction. The reaction has less moles of gas on the product side. Which of the
    14·1 answer
  • You mix 15g of water with 10 grams of sodium chloride. After the reaction occurs, how
    8·1 answer
  • Convert 5° C into Fahrenheit.
    9·1 answer
  • How many moles are in 2.5L of 1.75 M Na2CO3
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!