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
hoa [83]
3 years ago
8

The "correct" mass of the cylinder had been previously determined to be 27.20 grams. What was the percent error on his first wei

ghing if Bart found the mass to be 25.01 g. Show your work.

Chemistry
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

Percent error =  - 8.1 %

Explanation:

Given data:

Actual mass = 27.20 g

Theoretical mass = 25.01 g

Percent error = ?

Solution:

Formula:

Percent error = theoretical value- actual value/ actual value × 100

Now we will put the values in formula.

Percent error =   25.01 - 27.2 / 27.2 × 100

Percent error = -2.19 / 27.2 × 100

Percent error = -0.081  × 100

Percent error =  - 8.1 %

You might be interested in
Why do teapots have highly polished surface
Natali [406]

Good conductors of electricity and heat, form cations by loss of electrons,

6 0
3 years ago
Read 2 more answers
Hydrogen is a reactive gas under normal conditions.Based on this property alone, to which group of the periodic table should hyd
denis23 [38]
Even though Hydrogen is originally in group 1, based on this property, we can say it is in group 6.

Because:

Group 6 would mean that it only needs 2 more valence electrons till the octet (8 valence electrons). This would make it reactive, yet, in normal conditions, unlike group 7.
5 0
3 years ago
Read 2 more answers
For her school Science Fair, Alyssa designs an experiment to learn more about erosion. Her experimental set up is shown below. W
shutvik [7]

Answer:                                                                                                                                

if I am going to answer I need the set up

Explanation:

please show the set up and I will answer the question

8 0
2 years ago
Cathode rays were shown to be a stream of _____. protons electrons neutrons quarks
Murljashka [212]

It's B) electrons, is the right answer

7 0
3 years ago
How many moles of oxygen will be produced from the decomposition of 3 moles of KClO3?
AlexFokin [52]

Answer:

4.5moles

Explanation:

First, let us balance the equation given from the question. This is illustrated below:

KClO3 —> KCl + O2

There are 2 atoms of O on the right side and 3 atoms on the left. It can be balance by putting 2 in front of KClO3 and 3 in of O2 as shown below

2KClO3 —> KCl + 3O2

Now, we have 2 atoms each of K and Cl on the left side and 1atom each of K and Cl on the right. It can be balance by putting 2 in front of KCl as shown below:

2KClO3 —> 2KCl + 3O2

Now the equation is balanced.

From the balanced equation,

2 moles of KClO3 produced 3 moles of O2.

Therefore, 3 moles of KClO3 will produce = (3 x 3) /2 = 4.5moles of O2.

Therefore 3 moles of KClO3 will produce 4.5 moles of O2

5 0
3 years ago
Other questions:
  • Write a balanced chemical equation based on the following description:
    9·1 answer
  • In the early 1900's many scientists thought that an atom consisted of a positive substance with negative charges scattered throu
    11·1 answer
  • Why do we experience the changing of the seasons on earth
    13·1 answer
  • 16. DNA in a eukaryotic cell is contained in
    5·2 answers
  • Whitney is making sweet tea. She adds 15 grams of
    12·1 answer
  • What is the lowest energy level that contains d orbitals?<br> O A. 4<br> O B. 3<br> O C. 2<br> D. 1
    12·1 answer
  • Within a period, the nuclear charge increases as you move from left to right across the
    13·1 answer
  • CO, + H2O –H^2 CO^3 The reaction is which type of chemical reaction?​
    9·1 answer
  • What is the purpose of the subscripts, or small numbers, in a chemical formula?
    10·1 answer
  • Calculate: (7.0 x 10^5) + (2.5 x 10^4) =
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!