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
Maru [420]
3 years ago
14

The average cup of coffee contains about 125 mg of caffeine, C8H10N4O2. Caffeine is also found in tea, colas, and headache remed

ies. What is the mass (in grams) of one molecule of caffeine?
Chemistry
1 answer:
Rashid [163]3 years ago
8 0

Answer:

The answer to your question is 194 g

Explanation:

Molecular mass is the sum of all the masses of the atoms that form a molecule.

In the problem, we have C₈H₁₀N₄O₂ which means

                  atomic mass          number of atoms          total

Carbon           12                                      8                      12 x 8 = 96

Hydrogen         1                                     10                       1 x 10 = 10

Nitrogen       14                                       4                      14 x 4 = 56

Oxygen         16                                       2                      16 x 2 = 32

                                                                                                     194 g

You might be interested in
Can someone help me with this please?
Elodia [21]
All you have to do is explain the relationship between years and inches. The most rain was in 2004 with 10 inches and the least was in 1998 with 4 inches. In recent years there has been more rain than in the past. For the analysis just summarize that.
5 0
3 years ago
(i need help please ill give brainliest if u get it right)* the questions and everything are in the picture below*
NemiM [27]

Explanation:im not really sure about this one but i think it is either c or b

ANSWER:C im pretty sure.sorry if wrong

7 0
3 years ago
The rock outcrop, shown above demonstrates the law of included fragments. Identify the correct definition for the law of include
Radda [10]

Answer:

A

Explanation:

The law of included fragments states: Fragments found in a rock must be older than the rock itself.

7 0
3 years ago
Based on electronegativity, select the molecule with the most ionic character. Group of answer choices SBr2 OBr2 SeCl2 TeI2 SCl2
Basile [38]

Answer:

OBr₂

Explanation:

<em>The ionic character depends on the difference of electronegativity between the elements. The higher ΔEN, the greater the ionic character.</em>

SBr₂

ΔEN = |EN(S)-EN(Br)| = |2.5-2.8| = 0.3

OBr₂

ΔEN = |EN(O)-EN(Br)| = |3.5-2.8| = 0.7

SeCl₂

ΔEN = |EN(Se)-EN(Cl)| = |2.4-3.0| = 0.6

TeI₂

ΔEN = |EN(Te)-EN(I)| = |2.1-2.5| = 0.4

SCl₂

ΔEN = |EN(S)-EN(Cl)| = |2.5-3.0| = 0.5

OBr₂ is the molecule with the most ionic character.

4 0
3 years ago
An aqueous solution has a normal boiling point of 103.0°
torisob [31]
About 5 degrees  that is

3 0
3 years ago
Other questions:
  • Can someone explain the alkali metals unit to me please? I am so confused and I have a test about this stuff. Not not only alkal
    8·1 answer
  • If the specific heat of water is 1.0 calorie/gram°c, how many calories are required to raise 500 g of water 10.0°c?
    12·1 answer
  • Match the each term with its definition. 1) reaction coordinate a) the higher point on the energy curve 2) δg° b) the plot of th
    11·1 answer
  • Help meh plz!!!
    12·2 answers
  • What wil most likely result if a diabetic injects an overdose of insulin
    5·1 answer
  • Neon has 8 electrons in it's outer shell. Does it need to bond? Why or why not?
    13·1 answer
  • Copper will NOT easily form a new substance when in contact with which of the following? moist air nitric acid sulfuric acid car
    13·2 answers
  • What is the chemical ratio of h2o
    11·2 answers
  • Calculate the molar mass for calcium phosphite.
    10·1 answer
  • What mass, in grams, of sodium sulfate is needed to make 234.9 g of a 1.7 % (m/m) aqueous solution of sodium sulfate?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!