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
inn [45]
3 years ago
8

An object was measured by a worker as

Chemistry
2 answers:
Lapatulllka [165]3 years ago
8 0

Answer: The percent error in the worker's measurement is 1.38%

Explanation:

Actual length of the object = 14.4 cm

length measured by the worker = 14.6 cm

absolute error in measuring the object = 14.6 - 14. 4 = 0.2 cm

percentage error =\frac{\text {absolute error}}{\text {actual length}}\times 100\%

Putting in the values we get:

percentage error =\frac{0.2}{14.4}\times 100\%=1.38\%

Thus the percent error in the worker's measurement is 1.38%

marusya05 [52]3 years ago
6 0
<h2>Answer - 0.73%</h2>

14.6            .2

          =          

100              x

(Above is proportions I used to get the answer)

x = 0.73% which is the answer.

You might be interested in
2. What are the characteristics of an acid (at least 3)?
arlik [135]

Answer:Acids taste sour, react with metals, react with carbonates, and turn blue litmus paper red. Bases taste bitter, feel slippery, do not react with carbonates and turn red litmus paper blue.

Explanation:

  • Sour taste (though you should never use this characteristic to identify an acid in the lab)
  • Reacts with a metal to form hydrogen gas.
  • Increases the H+ concentration in water.
4 0
3 years ago
Calculate the acid dissociation constant Ka of a 0.2 M solution of weak acid that is 0.1% ionized is ________.
mars1129 [50]

Answer: acid dissociation constant Ka= 2.00×10^-7

Explanation:

For the reaction

HA + H20. ----> H3O+ A-

Initially: C. 0. 0

After : C-Cx. Cx. Cx

Ka= [H3O+][A-]/[HA]

Ka= Cx × Cx/C-Cx

Ka= C²X²/C(1-x)

Ka= Cx²/1-x

Where x is degree of dissociation = 0.1% = 0.001 and c is the concentration =0.2

Ka= 0.2(0.001²)/(1-0.001)

Ka= 2.00×10^-7

Therefore the dissociation constant is

2.00×10^-7

7 0
2 years ago
The temperature in mark’s town is 30 degrees Fahrenheit. The temperature in Vikki’s town is 82 degrees Fahrenheit. In both towns
allochka39001 [22]

Answer:

sorry don't know the answer but i really need the points sorry

Explanation:

7 0
3 years ago
Convert 135 Meters to kilometers
tamaranim1 [39]

Answer:

0.135 km

Explanation:

1 km = 1000 meters

7 0
2 years ago
Please help me would really appreciate it thank you :)
tatyana61 [14]

Answer:

e. 8.04*10^4

Explanation:

80.4 g converted to mg is 80,400. 8.04*10^4= 80,400

4 0
2 years ago
Other questions:
  • PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    8·1 answer
  • Is wine a homogenous mixure
    14·1 answer
  • The mechanism of chymotrypsin can be viewed as a two-step process, acylation of the enzyme active site followed by a deacylation
    14·1 answer
  • Eric's father asked an engineer to survey the field behind their house. He wanted to plant some apple and pear trees there. Acco
    7·1 answer
  • Which sample matter is a pure substance
    14·1 answer
  • A light bulb contains argon gas at a temperature of 295 k and at a pressure of 75 kilopascals. the light bulb is switched on, an
    11·2 answers
  • Lithium hydroxide is classified as an A. Arrhenius base B. Arrhenius acid C. Alcohol D. Aldehyde
    8·1 answer
  • The number of orbitals in each principle energy level (n) equals​
    12·1 answer
  • Read the information about the halogen family.
    9·1 answer
  • ASAP HURRY FOR BRAINLIST
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!