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
kumpel [21]
1 year ago
9

A laboratory instructor gives a sample of amino-acid powder to each of four students, I, II, III, and IV, and they weigh the sam

ples. The true value is 8.72 g. Their results for three trials are:
I: 8.72 g, 8.74 g, 8.70 g II: 8.56 g, 8.77 g, 8.83 g
III: 8.50 g, 8.48 g, 8.51 g IV: 8.41 g, 8.72 g, 8.55 g
(c) Which set of data is both the most accurate and the most precise?
Chemistry
1 answer:
Dovator [93]1 year ago
5 0

According to the calculation, set I is both the most accurate and most precise.

Exactness is a quality or state of being precise. 2a: comparison accuracy sense: the degree of precision with which an action is carried out or a measurement expressed 2b. The novel was fact-checked for historical authenticity. 2a: conformance to truth, to a standard, or to a model: exactness It is impossible to estimate the number of casualties with accuracy. Let's calculate the precision for the fourth set, consideringAV_I_V=8.56g

Δ1 = ∣(8.41−8.56)∣ g=0.15 g

Δ2 = (8.72−8.56) g=0.16 g

Δ3 = ∣(8.55−8.56)∣ g=0.01 g

Therefore: \triangle_I = \frac{\triangle1+\triangle2+\triangle3}{3} = 0.107g

Learn more about accuracy and precision here:

brainly.com/question/28289139

#SPJ4

You might be interested in
Uses of carbon dioxide.​
andrey2020 [161]

Answer:

hello can you follow me

Explanation:

used in fire extinction, blasting rubber, foaming rubber and plastic

6 0
3 years ago
5. Rubbing alcohol is a commonly used disinfectant and has a cooling effect when applied to the skin. The active ingredient in r
WITCHER [35]

Answer:

Explanation:

70% (vol/vol) means

cotnaimns 70 %(vol/vol) 70 ml of isoprapnol is there in 100 ml of Rubbing sold alcohol.

if it is 200 ml then obvouly it has the 70*2 =140 ml of isoproanol  required.

8 0
3 years ago
Investigator Nixon is asked to pick up a firearm at a crime scene. What is the correct way for Investigator Nixon to pick up the
artcher [175]

Answer:

i dont know

Explanation:

7 0
2 years ago
What information do the coefficients of a balanced equation give about the reactants
Nana76 [90]
The information that the coefficients of a balanced equation give about the reactants are to tell how many moles of reactants are needed and how many moles of product can be produced.
4 0
3 years ago
Is the perceived frequency of a sound wave
ryzh [129]

Answer:

pitch

Explanation:

7 0
3 years ago
Other questions:
  • In 1782 a French chemist named ________ proposed a systematic nomenclature for naming chemical compounds.
    5·2 answers
  • I need help
    5·1 answer
  • Which is an example of a mixture made of parts that can easily be separated?
    14·2 answers
  • Which element is oxidized in the reaction below? fe(co)5 (l) + 2hi (g) → fe(co)4i2 (s) + co (g) + h2 (g)
    7·1 answer
  • What mass of NaOH is in 3.0e+02 mL of a 5.0 M NaOH solution?
    10·1 answer
  • An irregularly shaped piece of magnesium with a mass of 11.81 g was dropped into a graduated cylinder partially filled with wate
    13·1 answer
  • __________ is the attractive pull between any two objects.
    7·2 answers
  • A commercial oven with a book value of $67,000 has an estimated remaining 5 year life. A proposal is offered to sell the oven fo
    13·1 answer
  • What is the mass of 11.4 L of NO2
    5·1 answer
  • Write a full set of quantum numbers for the following:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!