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
Oliga [24]
2 years ago
5

analytical chemists can detect very small amounts of amoin acids , down to 3x10^-21 mol. how many molecules of an amino acid (mr

=200) would this be ?
Chemistry
1 answer:
sesenic [268]2 years ago
6 0
The number of particles in one mole is given be Avagadro's number <span>6.022×10^23

Multiply by number of moles.

3 ×10^-21 mol * 6.022 ×10^23 molecules/mol = </span><span>1,807 molecules
(rounded to nearest whole number)
 </span>
You might be interested in
What is filtration? ㅜㅜ ㅜㅜ
Aleks04 [339]

Answer:

filtration is the process of using a filter to remove solids from liquids or gasses.

Example:

an example of this is tea.

4 0
2 years ago
What part is the independent variable and what part is the dependent variable in the scenario: The blood pressure of a soldier i
azamat
What part is the independent variable and what part is the dependent variable of the seminary the blood pressure of a soldier is measured while he’s resting soldiers and exposed to a stressful environment and his blood pressure is measured in
6 0
3 years ago
Calculate the percent errorin a length measurementof 4.45cm if the correct value is 4.06
FinnZ [79.3K]

Answer:

9.6 %

Explanation:

<u>Step 1: How to define  percent error ? </u>

⇒ % error is the difference between a measured value and the known or accepted value

⇒Percent error is calculated using the following formula:

⇒%error  =  | Experimental value-theoretical value/theoretical value |  x100%

⇔ this can be written as well as : error = (| Experimental value/ theoretical value | - | Theoretical value / Theoretical value | ) x100%

<u>Step 2: Calculate % error</u>

In this case, this means :

%error = ( |(4.45 cm - 4.06cm ) / 4.06cm | ) x100%

%error = 0.096 x100%

%error =9.6 %

3 0
3 years ago
PLEASE HELP NOW!! 30 BRAINLIEST!!!
scoray [572]

Answer:

the answer should be A. the sum of all forces acting on an object

Explanation:

8 0
3 years ago
Read 2 more answers
The transfer of energy by waves is also known as _______
Verdich [7]

Answer:

wave

Explanation:

'Wave' is a common term for a number of different ways in which energy is transferred: In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields.

i hope this helps and your welcom

5 0
3 years ago
Other questions:
  • Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. Potassiu
    6·2 answers
  • How many mols is 1433.6 iron atoms
    12·1 answer
  • Which element is very toxic and reactive green gas?
    10·2 answers
  • 6.
    8·1 answer
  • Suppose your bedroom is 21 ft long, 17 ft wide, and the distance from floor to ceiling is 7 ft, 6 in. You need to know the volum
    5·1 answer
  • Which property of a body cannot be changed if a force is applied to it?
    12·2 answers
  • PLSSS HELP MEEEEEEEE
    6·1 answer
  • Write the formulas of all species in solution for the following ionic compounds by writing their dissolving equations:
    11·1 answer
  • What is the kinetic energy of a 3kg ball that is rolling at 2 meters per second
    12·1 answer
  • ILL GIVE U 100 POINTS!!!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!