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
Virty [35]
3 years ago
10

How many molecules are present in 4.21 moles of HBr?​

Chemistry
1 answer:
salantis [7]3 years ago
6 0

Answer:

The answer is

<h3>2.53 × 10²⁴ molecules</h3>

Explanation:

The number of molecules present can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 4.21 × 6.02 × 10²³

We have the final answer as

<h3>2.53 × 10²⁴ molecules</h3>

Hope this helps you

You might be interested in
A tank of water was contaminated with a colored dye (D). To determine the concentration of D, an analyst took 5.0-mL solution fr
alekssr [168]

Answer:

0.005 M

Explanation:

Given data:

volume of sample solution ( volume of D ) = 5.0 mL

volume of added stock solution ( V1 ) = 5.0 mL

concentration of added stock solution ( N1 )  = 0.02 M

Total volume of concentration  ( V2 )= 10 mL = ( 5.0 mL + 5.0mL)

concentration of Total volume of sample ( C2 ) = 0.01

N2 = ( N1V1 ) / V2

     = ( 0.02 * 5 ) / 10 = 0.01 m

absorbance of sample solution ( A1 ) = 0.10

absorbance of additional sample solution ( A2 ) = 0.20

attached below is the remaining part of the detailed solution

3 0
2 years ago
Plz answer for brainliest trolls will get deleted
Roman55 [17]

Answer:

A; C6H12O6 + 6O2

Explanation:

You can easily differentiate between the reactants and the products, as the reactants are on the left, while the products are on the right.

3 0
3 years ago
Which of the following is NOT a reason for the experimental volume of the flask to be incorrect?
dsp73

Answer:

2

Explanation:

i dont andesdant

4 0
3 years ago
Why is it better to use the metric system, rather than the English system, in scientific measurement?
frez [133]
The metric system is based on powers of 10 so it is much easier to convert units, often just by moving the decimal point.
3 0
2 years ago
Read 2 more answers
. Which information is NOT included in each square of the periodic table in your text? a. atomic number c. melting point b. chem
azamat
The correct answer is melting point
6 0
3 years ago
Other questions:
  • Combustion reactions are a notable source of carbon dioxide in the environment. Using the following balanced equation, how many
    11·1 answer
  • What is the relationship between the period and the orbital radius? Select one: a. It is a direct relationship- As the period in
    5·1 answer
  • Elements are arranged by their properties on the periodic table. Arranged by their properties?
    14·1 answer
  • OK SO HERES HOW ITS GONNA GO. IMA ASK YOU GUYS ONE MORE TIME BC THIS IS LIKE THE 3RD TIME IVE WAISTED MY POINTS IN THE SAME QUES
    13·1 answer
  • You are driving a Winnebago at a casual speed of 54 miles per hour (mph) on a journey to visit your grandmother in Alabama.
    6·1 answer
  • What does burning bread in a toaster demonstrate? (a) Energy can create a change. (b) Energy can cause motion. (c) A toaster cre
    12·1 answer
  • Not a very good question but if anyone is good at chemistry, can you leave some tips below? I'm having lots of trouble in that s
    13·1 answer
  • A __________ is a closed path or loop around which an electric current flows.
    11·2 answers
  • How does freezing and evaporation affect salinity? Choose ALL that apply Lesson 2.05 When that water melts in the spring, the sa
    12·1 answer
  • Is college worth it
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!