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
Katyanochek1 [597]
3 years ago
9

Describe the method for taking an accurate measurement by using a measuring tool.

Chemistry
1 answer:
lana [24]3 years ago
3 0
The accurate measurements are near the center. To determine if a value is accurate compare it to the accepted value. As these values can be anything a concept called percent error has been developed. Find the difference (subtract) between the accepted value and the experimental value, then divide by the accepted value.
You might be interested in
If 100mL was diluted of a 2.0 M solution of sodium chloride by adding an additional 100 mL of water, what would the new molarity
andrew-mc [135]
I need help with my questions sorry
7 0
2 years ago
Which of the following has the most atoms per mole?
BabaBlast [244]

Answer:

e) Na₃PO₄

Explanation:

a) BaSO₄

1 mole of BaSO ₄ = 6.022×10²³ molecules

1 mole of BaSO ₄ contain 1 atom of Ba one atom of S and four atoms of O.

Total number of atoms = 6 atoms

6.022×10²³ × 6 atoms = 36.132 ×10²³ atoms

b) NaNO₂

1 mole of NaNO₂= 6.022×10²³ molecules

1 mole of NaNO₂ contain 1 atom of Na one atom of N and two atoms of O.

Total number of atoms = 4 atoms

6.022×10²³ × 4 atoms = 24.088 ×10²³ atoms

c)KMnO₄

1 mole of KMnO₄ = 6.022×10²³ molecules

1 mole of KMnO₄ contain 1 atom of K one atom of Mn and four atoms of O.

Total number of atoms = 6 atoms

6.022×10²³ × 6 atoms = 36.132 ×10²³ atoms

d) KCl

1 mole of KCl = 6.022×10²³ molecules

1 mole of KCl contain 1 atom of K one atom of Cl.

Total number of atoms = 2 atoms

6.022×10²³ × 2 atoms = 12.044 ×10²³ atoms

e) Na₃PO₄

1 mole of Na₃PO₄ = 6.022×10²³ molecules

1 mole of Na₃PO₄ contain 3 atom of Na one atom of P and four atoms of O.

Total number of atoms = 8 atoms

6.022×10²³ × 8 atoms = 48.176×10²³ atoms

3 0
3 years ago
¡cual es el % masa/volumen de una mezcla que posee 40 gramos de colorante en 5 litros de mezcla?
Firlakuza [10]

Answer:

what

Explanation:

7 0
3 years ago
Under identical conditions of temperature and pressure, which of the following gasses is the densest: Ne, CO2, or Cl2?
Tanzania [10]
Cl2=3.17g/L
Ne=.901g/L
CO2=1.96g/l
 therefore Cl2 is the densest gas under the given conditions.
7 0
3 years ago
When two hydrogen atoms combine with one oxygen atom, what is the result?
vitfil [10]

Answer:

solution

Explanation:

hope i helped

4 0
3 years ago
Read 2 more answers
Other questions:
  • Complete and balance the following reaction. Zinc loses two electrons to form an ion. What type of reaction does this equation r
    5·2 answers
  • An atom of phosphorus has an atomic number of 15 and a mass number of 31. how many protons and neutrons does it contain?
    7·1 answer
  • What was the period of time in london called because of the cold temp​
    13·1 answer
  • Apart from cases of nuclear processes (including fission), elements cannot be broken down to form other substances.
    11·1 answer
  • Consider the redox reaction below.
    13·1 answer
  • PLEASE HELP HELP HELP
    7·1 answer
  • How many molecules OF2 would have a mass of .132 g
    5·1 answer
  • Apakah perbezaan kakilauan permukaan rod kuprum dan karbon​
    10·1 answer
  • In chromatography why is it important to remove the strip of paper until it reaches the end​
    13·1 answer
  • Is O2 in SO2 peroxide or not ?​ if it's not why ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!