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
aleksandrvk [35]
3 years ago
12

Given that the molar mass of carbon is 12 g/mol and the molar mass of oxygen is 16 g/mol, calculate the molar mass of carbon dio

xide, co2.
Chemistry
1 answer:
nekit [7.7K]3 years ago
7 0
Molar mass of oxygen is:
M(O)=16 g/mol
Molar mass of carbon is:
M(C)=12 g/mol  
Molar mass of carbon dioxide is:
M(CO2)=M(C)+2*M(O)
 M(CO2)=12 g/mol+2*16g/mol
M(CO2)=44 g/mol

<span>Molar mass(M) is the mass of 1 mole of the substance (grams per mole of a compound).</span>
You might be interested in
EASY 100 POINTS, WILL MARK BRAINLEST, 2 QUESTIONS, SHOW YOUR WORK OR NO POINTS
SVETLANKA909090 [29]

Answer:

Explanation:

1. Please provide the enthalpy info - I will work on it with the info

2.

i) Reaction a should be modified to match the number of S in equation:

 2S + 2O2 -> 2SO2     deltaH = -370kJ

ii) Reaction b should be written reversely to match the reactants of SO2:

 2SO2 + O2 -> 2SO3     deltaH = 256kJ

iii) Adding the equations together:

 2S + 3O2 -> 2SO3

iv) Enthalpy of the combined reaction = -370+256 = -114kJ

 It is negative so the reaction is exothermic.

5 0
2 years ago
Read 2 more answers
Knowledge of atomic structure has evolved over time. Thomson discovered that atoms contain electrons, Rutherford discovered that
sergejj [24]
I believe the correct response would be A. The cumulative nature of science. How experimental evidence and ideas made by many scientists have accumulated and or built up to have a more understandable and or clear view of a particular scientific topic, and or principle.
4 0
3 years ago
Read 2 more answers
Name the following <br> Cr(SO4)2
inessss [21]
Chromium sulfate.
Cr is chromium, and SO4 is sulfate.
3 0
3 years ago
Consider an electron with charge −e−e and mass mmm orbiting in a circle around a hydrogen nucleus (a single proton) with cha
PtichkaEL [24]

Answer:

Explanation:

The net force on electron is electrostatic force between electron and proton in the nucleus .

Fc = \frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

This provides the centripetal force for the circular path of electron around the nucleus .

Centripetal force required = \frac{m\times v^2}{r}

So

\frac{m\times v^2}{r}=\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}

v^2=\frac{e^2}{4\pi \epsilon m r}

v=(\frac{e^2}{4\pi \epsilon m r})^{\frac{1}{2} }

5 0
2 years ago
What are duplet and octet elements ?Differentiate.​
Finger [1]
Octet means presence of a total of 8 electrons in its valence shell while in case of duplet only 2 electrons are present in valence shell.
4 0
3 years ago
Other questions:
  • How much energy is released during the formation of 1 mol H2O
    13·1 answer
  • How has the scientific community addressed the safety of chemicals?
    14·1 answer
  • Answer these 2 questions FAST PLEASEE!!! I WILL GIVE BRAINLIEST AND GIVE EXTRA POINTS
    14·1 answer
  • How many moles are in 345g of Re
    11·1 answer
  • What method of heat transfer takes place when particles of matter move from one place to another in a liquid
    10·2 answers
  • 1. Ba(OH)2<br> What is the compound
    10·1 answer
  • What quantity is represented by the metric system prefix deci-
    13·1 answer
  • 1. On your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. Locate these
    5·1 answer
  • Calculate the number of moles in 75 g of Glucose
    10·1 answer
  • PLEASE HELP ME ASAP: Some students are using samples of different substances for a lab investigation. They plan to observe the p
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!