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
Komok [63]
3 years ago
10

What would be the mass of 9.03*10^21 molecules of hydrobromic acid

Chemistry
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

2.11 g hydrobromic acid (correct to 3SF)

Explanation:

Molecular formula of hydrobromic acid = C2H5BrO2

mass of C2H5BrO2 = 140.96g

Beginning with what we're given, 9.03*10^21 we then make a conversion by using Avegadro's number which is 6.02*10^23 per mole (Oct. 23 at 6:02 am is national mole day :) Then, we need to convert out of moles, 140.96g hydrombromic acid per mole.

It looks like this:

9.03*10^21 molecules • (1 mol C2H5BrO2 / 6.02*10^23 molecules) • (140g C2H5BrO2 / 1 mol) = 2.1144 g C2H5BrO2

You might be interested in
The job outlook for physical therapists
Ann [662]

The job outlook for physical therapists<u>  "will improve over time".</u>


Physical therapists, help harmed or sick individuals enhance their development and deal with their agony. These therapists are frequently an imperative piece of the restoration, treatment, and counteractive action of patients with unending conditions, ailments, or wounds.  

Physical therapists commonly work in private workplaces and centers, clinics, patients' homes, and nursing homes. They invest quite a bit of their energy in their feet, effectively working with patients.

7 0
3 years ago
Read 2 more answers
What causes different colors to appear in the sky?
katrin [286]

Answer:

Molecules and small particles in the atmosphere change the direction of light rays, causing them to scatter. Scattering affects the color of light coming from the sky.

Explanation:

3 0
3 years ago
In the equation KClO3 -&gt; KCl + O2, how many moles of oxygen are produced when 3.0 mol of KClO3 decomposes completely?
IceJOKER [234]

Answer:

4.5

Hope this helps!

6 0
3 years ago
Read 2 more answers
Identify the three basic ingredients used in glass and give an example of each​
kirill [66]

Answer:

Sand (SiO2 silica) In its pure form it exists as a polymer, (SiO2)n.

Soda ash (sodium carbonate Na2CO3) ...

Limestone (calcium carbonate or CaCo3) or dolomite (MgCO3)

Explanation:

I am pretty sure you know what sand is, Soda ash is a fine white colored powder that is extracted from the ashes of plants growing in sodium rich soils. Limestone is is a common type of carbonate sedimentary rock.  

4 0
2 years ago
What is the basic unit of chemistry?
Luba_88 [7]
An atom hopefully this helps
7 0
2 years ago
Read 2 more answers
Other questions:
  • Differences and similarities between liquid and gas
    14·1 answer
  • Why do you think a virus’s reproduction cycle is called the “lytic cycle”
    5·1 answer
  • A conducting sphere has a net charge of 4.8  1017
    13·1 answer
  • What is the name for the point at which the indicator changes color in a titration? turning point end point indicator point colo
    10·2 answers
  • Rank these molecules or groups of molecules by when mammals use them as fuel, from right after a meal through only during starva
    11·1 answer
  • Using the graphs below, which group of moths is better adapted to survive the hunting cycle?
    11·1 answer
  • you find this receipt and remember it can help you with a lock. You have 9 members in your unit. This will take care of 1 member
    6·1 answer
  • Explain how low atomspheric oxygen levels affected alligators growth in terms of celluar respiration
    5·1 answer
  • How many hours are in 188 years
    5·1 answer
  • Help me please (~ ̄- ̄)~​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!