The number of atoms : N = 2.709 x 10⁴⁶
Further explanationGiven
4.5 x 10²² moles of CO₂
Required
The number of atoms
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
Input the value :
N = 4.5 x 10²² x 6.02 x 10²³
N = 2.709 x 10⁴⁶
how to titrate cocacola because of its dark colour
Answer:
add baking soda maybe
Explanation:
Answer and Explanation
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Colas are also carbonated beverages. The carbonation can produce some carbonic acid in the Cola, which would affect your results. Therefore, to ensure that you are only titrating the phosphoric acid you will use de-carbonated soda. This can easily be obtained by gently heating the soda, or as you may already know, by rapidly shaking the bottle. It is also important that we do not use diet Colas since the artificial sweeteners that they contain have acidic functional groups that will also interfere with the titration.
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1Use a 25.00-mL pipet to deliver exactly 25.00 mL of room temperature, de-carbonated
Cola into a 250-mL beaker. Check out a magnetic stir bar and gently add it to the
beaker. Place the beaker on a stir plate. Set up a pH meter so that the probe is completely immersed, but in a way that the stir bar will not hit it. The tip of the probe
has a thin glass membrane. Handle it with care! Position the beaker so that the stir bar
is as close to the center of the beaker as possible for optimal stirring. It should stir
rapidly enough to ensure thorough mixing but not so rapidly as to cause splattering.
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2Obtain about 75 mL of 0.0100 M NaOH in a beaker. Use this NaOH to fill a buret.
Remember that you should always rinse a buret 2-3 times with the solution that you are
about to put into it and remove air bubbles at the buret tip. If you do not remember how
The initial level of the NaOH should be at exactly
0.00 mL. Once the buret is ready, place it over the beaker containing the Cola
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Hope this helps! <3
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What word is the biotic factor in this sentence:
Fish breath oxygen that is dissolved in water.
Answer: Fish
Explanation:
Biotic factor is one of the component of the ecosystem. It is the living component of the ecosystem. It is affected or influenced by the non-living or abiotic components of the ecosystem like water, air, sunlight, and others. Fish is an example of biotic factor which is dependent on abiotic component that is oxygen which is the chief gas required for the breathing. The oxygen is one of the components of the water. So, the oxygen is dissolved in water and the fish acquire the oxygen through water only.
V7
Which of the following is a MIXTURE. Select ALL that apply.
(0/1 Point) a:brass
b:calcium
c:sodium chloride
d:apple juice
Answer:
sodium chloride
Explanation:
Please help (: List and describe the locations and conditions in the Four zones of a lake
Explanation:
littoral horizantal raw curated
How can one determine that a redox reaction will be nonspontaneous?
A. The oxidation potential has a negative value.
B. The reduction potential plus oxidation potential is positive.
C. The reduction potential plus oxidation potential is negative.
D. The reduction potential has a positive value.
Answer:
C: The reduction potential plus oxidation potential is negative
Explanation:
Redox reaction is a combination of reduction and oxidation reactions. A redox reaction can be nonspontaneous if the sum of reduction and oxidation potential is negative. Thus, option C is correct.
What is a redox reaction?Redox reaction involves the transfer of the electron from an electron donor to an acceptor. This lead to the change in the oxidation number, and the charge on the atom or the molecules.
A redox reaction has been said to be nonspontaneous if the reduction and the oxidation half of the reactions add to a negative value. As there is an external voltage supplied to the reactants that have to result in a negative potential.
Therefore, option C. the redox reaction is nonspontaneous if the addition of the oxidation and reduction adds to a negative value is correct.
Learn more about redox reactions here:
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True/False: Atoms of the same elements have different properties
Answer: True
Explanation:
When sodium is placed in cold water does a reaction occur
If one mole of an unknown substance is 200.59 g/mole, what is the mass of 0.33 moles of that substance?
Answer: 66.83g
Explanation: (200.59 g/mole = Hg)
0.33 moles = 66.83g
If a substance is a bad conductor as a solid, but a good conductor as a liquid or when dissolved into water, which type of bond is holding the compound together?
The bond type in the substance is ionic bonding because, ionic compounds in their solid state are not conducting but the ions they furnish when dissolved in water conducts electricity.
What are ionic compounds ?Ionic compounds are formed between metals and nonmetals. Metals are electropositive and they can easily loss electrons to from cations. Metals donate electrons to the electron deficient non metals to achieve octet.
Ionic bonding is a strong electrostatic force between opposite charged ions. Hence this bond is stronger than other types of bond. This intact bonding make them bad conductors in the solid state.
However they are electrically conducting the molten state or when dissolved in water due to the presence of free ions and electrons in the solution.
Find more on ionic compounds:
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According to the Laws of Conservation Matter Atoms are not
they are not created or destroyed
How are a carrot, an amoeba, and a bacterium alike?
They are prokaryotes.
They are eukaryotes.
They are all made of cells.
They all live in soil.
Answer:
They are all made of cells
Answer: They are all made of cells.
Explanation:
which is the first stage of mitosis?
A.anaphase
B.prophase
C.metaphase
D.telophase
Answer:
c
Explanation:
