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
lesya692 [45]
3 years ago
9

what is the molecular formula of a compound with an empiricla formula of ch and a molecular mass of 78

Chemistry
1 answer:
Dovator [93]3 years ago
6 0

Answer:

C6H6

Explanation:

We can obtain the molecular formula from the empirical formula.

What we need do here is:

(CH)n = 78

The n shows the multiples of both element present in the actual compound. It can be seen that carbon and hydrogen have the same element ratio here. We then use the atomic masses of both elements to get the value of n. The atomic mass of carbon is 12 a.m.u while the atomic mass of hydrogen is 1 a.m.u

(1 + 12)n = 78

13n = 78

n = 78/13 = 6

The molecular formula is

(CH)n = (CH)6 = C6H6

You might be interested in
___________ reactions form predominately or exclusively one enantiomer. ____________ is the addition of a single oxygen atom to
ArbitrLikvidat [17]

1) <u>Stereo-selective (or enantioselective)</u> reactions form predominately or exclusively one enantiomer.

2) Epoxidation is the addition of a single oxygen atom to an alkene to form an epoxide.

3) <u>Hydrogenation (or reduction)</u> of an alkene forms an alkane by addition of H₂.

4) <u>Dihydroxylation</u> is the addition of two hydroxy groups to a double forming, a 1,2-diol or glycol.

5) <u>oxidative</u> cleavage of an alkene breaks both the σ and π bonds of the double bond to form two carbonyl groups.

6)  <u>Regioselective</u> reactions form predominately or exclusively one constitutional isomer.

7)  <u>Syn</u> dihydroxylation results when an alkene is treated KMnO4 or OsO4, where each reagent adds two oxygen atoms to the same side of the double bond.

7 0
3 years ago
What kind (ionic or covalent) bond is FeCl2 + Na2CO3? (iron (II) chloride + sodium carbonate).
kipiarov [429]

Answer:

corbonate

Explanation:

i think so. not sure

6 0
3 years ago
Which of the following is a radioisotope used to date rock formations older than 50,000 years old?
Natasha2012 [34]
I'm not so sure but I would say Answer Choice B
3 0
3 years ago
Read 2 more answers
9. Which one of the following is not a potential effect of global warming?
valentina_108 [34]

Answer:

D. Increase in UV radiation​

Explanation:

I hope it helps. brainliest pls

5 0
2 years ago
A disturbance in matter that carries energy from one place to another is called
siniylev [52]
The answer you're looking for is: a wave.
6 0
3 years ago
Other questions:
  • Which of the following pieces of laboratory equipment is not directly used to make measurements?
    14·2 answers
  • The atomic symbol Superscript 206 subscript 82 upper P b. represents lead-206 (Pb-206), an isotope that has 82 protons and 124 n
    6·2 answers
  • Examples of electromagnetic wave
    5·1 answer
  • Which list of elements consists of a metal, a metalloid, and a nonmetal?
    12·1 answer
  • How to Write Balanced Chemical Equations -<br> FeS + O2 - Fe,02 + SO2
    7·1 answer
  • In Boston (elevation 20 feet), you step on a
    14·1 answer
  • TOMMY (persistently but a little intimidated by the crowd) It's always that way, in every story I ever read about a ship landing
    9·1 answer
  • Octane (C8H18) is a component of gasoline that burns
    15·1 answer
  • How many moles of lithium Sophie are in a simple with the number of atoms shown below?
    14·1 answer
  • Which reactions are oxidation-reduction reactions? check all that apply. fes(s) 2hcl(aq) → h2s(g) fecl2(g) agno3(aq) nacl(aq)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!