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
PolarNik [594]
3 years ago
14

Explain how the following experimental errors affect the final calculation of the kilocalories per gram for a food item. Be spec

ific as to whether the final value will be higher or lower than if the error had not been made.
a. The student misread the scale and recorded 110.3 g for the final mass of the soda can plus water instead of 101.3 g.
b. Part of the unburned marshmallow fell off before the final mass was determined.
c. The food would not keep burning and had to be relit several times.
d. The thermometer got stuck in the aluminum foil while the food was burning and the final temperature was made with the thermometer in the air above the water and not in the water.
Chemistry
1 answer:
Ainat [17]3 years ago
6 0

Answer:

a) the final kilocalories per gram for food will be less because the mass was reduced

b)the final kilocalories per gram for food will be less since

c) the final kilocalories per gram for food will be less since the reaction will eventually go to completion

d) the final kilocalories per gram for food will be more.

Explanation:

a) the final kilocalories per gram for food will be less because the mass was reduced from 110.3 to 101.3g

b)the final kilocalories per gram for food will be less since some marshmallow fell off before the reaction

c) the final kilocalories per gram for food will be less since the reaction will eventually go to completion

d) the final kilocalories per gram for food will be more since the thermometer that got stuck will add to the value of final kilocalories per gram

You might be interested in
indentify one element that will combine with phosphorus in the same ratio of atoms as the ratio in aluminum phosphide
Cloud [144]
The answer is <span>ReGallium or Indium</span>
8 0
3 years ago
What is osmotic pressure of a solution that contains 13.7 g of propyl alcohol (C3H7OH) dissolved in enough water to make 500 mL
azamat

Answer:

Π = iMRT ½

Explanation:

111 g

= 0.033 mol

0.033 mol CaCl2

0.09632 kg solvent

= 0.0344 m

13.7 g x 1 mol C3H7OH

60.10 g

0.5 L

(0.0821 L.atm/K.mol) (300.15K

4 0
3 years ago
Calculate the tempature of a 0.50 mol sample of a gas at a pressure of 0.987 atm and a volume of 12 L
dalvyx [7]

Answer:

The temperature is 288, 88K

Explanation:

We use the formula PV= nRT:

T= PV/nR

T= 0,987 atm x12 L/0,50 mol x 0,082 l atm/K mol

<em>T=288,88K</em>

6 0
3 years ago
Which is the correct empirical formula for C6H1206?
Bas_tet [7]

Explanation:

the correct empirical formula for C6H12O6 is CH2O...

hope it will help....

8 0
2 years ago
Gold and hydrochloric acid
Sever21 [200]

Answer:

hydrochloric acid can be used to clean gold

hydrochloric acid does not gold in any way

3 0
3 years ago
Other questions:
  • ‘solution 1', ‘solution 2', and ‘solution 3'. present one solution when each menu button is clicked.
    14·1 answer
  • The atmosphere of the gas giants is usually made up mostly of hydrogen and ______.
    8·2 answers
  • You set up an experiment to determine the conditions needed to form the gemstones with the most clarity. You gather data from 5
    8·2 answers
  • What is the basic (smallest) unit of matter
    5·1 answer
  • Which of the following is an anion of 14N?<br> 14N5+<br> 14N3-<br> 15N
    5·1 answer
  • What percentage of children who are raised in abusive households grow up to be abusive parents themselves?
    6·1 answer
  • Read the list of common household substances.
    13·2 answers
  • Brass is an example of
    5·1 answer
  • Describe the difference between pure substance and mixtures ( give an example each)
    10·2 answers
  • How many atoms are in 2.75 moles of Mercury (Hg)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!