Answers
There are approximately 1.62 x 10^25 water molecules in the 499.8 mL bottle of water.
To determine the number of water molecules in the given volume of water, we need to use the relationship between mass, volume, and molar mass of water.
First, we need to find the mass of water in the bottle:
Mass = Density * Volume
Mass = 0.967 g/mL * 499.8 mL = 483.9 g
Next, we need to convert the mass of water to moles using the molar mass of water. The molar mass of water (H2O) is approximately 18.015 g/mol.
Moles = Mass / Molar mass
Moles = 483.9 g / 18.015 g/mol = 26.88 mol
Finally, we can calculate the number of water molecules using Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.
Number of molecules = Moles * Avogadro's number
Number of molecules = 26.88 mol * (6.022 x 10^23 molecules/mol) = 1.62 x 10^25 molecules
Therefore, there are approximately 1.62 x 10^25 water molecules in the 499.8 mL bottle of water.
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Related Questions
Pls help I’ll give brainly
Answers
Question 1 of 10
What is technology?
A. An understanding of something new.
B. The steps that engineers go through to create a product.
C. Something created using science for use by society.
D. A method that is used to solve problems,
SUBMIT
Answers
Answer:
C.
Explanation:
You can use the series of elimination for this. First, you look at A. Technology is not an understanding of something new, so we cross that out. Second, you look at B. Technology isn't a series of steps, so we can mark that one off. Third, you look at C. Technology is something created using science for use by society, so we can keep that in mind. Lastly, we check D. Technology doesn't match up to the definition, so we can cross that one out. The answer that would make the most sense would be D.
VERY EASY QUESTION
Does a theory help prove an experience or an experience help prove a theory?
Answers
Answer:both
Explanation:
It depends on where your looking at it from
Answer:
an expierience help prove a theory.
What would be the correct answer to part b pictured below? How can I figure it out?
Answers
Explanation:
When doing a replacement reaction, one should keep in mind the valence shell of the atoms in the reactions.
Answer:
\(FeBr_3+NaOH\rightarrow Fe\left(OH\right)_2+NaBr\)
the group 13, period 5 metal in the periodic table
Answers
Which of the following describes a study that is “longitudinal”? A study that follows people for an extended period of time to see if they develop a disease or condition. A study that looks at people in one location, to reduce any bias introduced by varying locations. A study that follows people taking a drug or placebo for 6 weeks to see if they develop a disease or condition. A study that follows people taking medication in different locations, to see if their location impacts the medication’s effectiveness.
Answers
Answer:
I'd say it's the first option, A study that follows people for an extended period of time to see if they develop a disease or condition.
Explanation:
Dividend
Divisor
Quotient/ Remainder
SAGOT
75
21
16.) 54
17.) 108
18.) 380
19.) 633
20.) 648
27
76
57
32
Solo
nihanda ni:
NNA MARIE S. CARAIT
borrinoloticon
Answers
Answer:
Dividend Divisor Quotient/ Remainder SAGOT 75 21 16.) 54 17.) 108 18.) 380 19.) 633 20.) 648 27 76 57 32. Solo nihanda ni: NNA MARIE S.
Explanation:
The heaviest baby ever born weighed 29 lbs 4 oz (29.25 lbs). What was the baby's mass in kilograms?
1 kg =2.2 lbs
kg
Answers
Answer:
13.295 kg
Explanation:
29.25 divided by 2.2 is about 13.295. Feel free to round this.
Which of the following is a way to decrease rate of dissolution of a solid in a liquid?
a
increase surface area
b
decrease agitation
c
increase temperature
(40 points)
Answers
A way to decrease the rate of dissolution of a solid in a liquid is to decrease agitation. Therefore, option B is correct.
What do you mean by the term dissolution ?A solute in a gaseous, liquid, or solid phase can dissolve in a solvent to create a solution through the process of dissolution.
The greatest concentration of a solute that may dissolve in a solvent at a specific temperature is known as solubility. The solution is deemed saturated when the solute concentration reaches its maximum.
Solubility and solution rate both decrease with rising temperature. The greatest quantity of a solute that can dissolve in a specific amount of solvent or solution at a specific temperature is the solute's solubility.
Thus, option B is correct.
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If an equilibrium mixture of the three gases at 600K contains 2.92*10^-2 M COCH(g) and 1.76*10^2 M CO, what is the equilibrium
concentration of Cl2?
Answers
Answer:
C
Explanation:
use the periodic table to answer this question, state whether the element named in (a)is a metal or nonmetal
Answers
Answer:
METALExplanation:
Element Name - Actinium
Symbol - AC
Electronegativity - 1.1
It is a Rare Silvery- white metal that's highly radio active
What are two weather factors that are directly influenced by ocean currents
O Air density and humidity
O Air pressure and temperature
O Temperature and humidity
O Precipitation and air pressure
Answers
Explanation:
Preciptation and air pressure
Answer:
It is Temperature and humidity. C
Explanation:
I took the test and it said it was C
Describe how to calculate the Rf value for a spot on a TLC plate.
Answers
Answer:
In thin-layer chromatography, the retention factor (Rf) is used to compare and help identify compounds. The Rf value of a compound is equal to the distance traveled by the compound divided by the distance traveled by the solvent front (both measured from the origin).
If the amount of radioactive phosphorus-32 in a sample prepared for treatment of leukemia decreases from 1.2g to 0.30g in 28.6 days, what is the half-life of phosphorus-32? Express the answer in 2 significant figures.
Answers
The half-life of the phosphorus-32, given the data is 14.3 days
What is half-life?Half-life is the time taken for half a material to decay.
Determination of the number of half-lives that has elapsedWe'll begin by obtaing the number of half-lives that has elapsed. This can be obtained as follow:
Original amount (N₀) = 1.2 gAmount remaining (N) = 0.3 gNumber of half-lives (n) =?2ⁿ = N₀ / N
2ⁿ = 1.2 / 0.3
2ⁿ = 4
Express 4 in index form
2ⁿ = 2²
n = 2
Thus, 2 half-lives has elapsed.
How to determine the half-lifeNumber of half-lives (n) = 2Time (t) = 28.6 daysHalf-life (t½) =?The half-life of the phosphorus-32 can be obtained as follow:
t½ = t / n
t½ = 28.6 / 2
t½ = 14.3 days
Thus, the half-life of the phosphorus-32 14.3 days
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(c) 45 g C,H, react with 45 g Cl₂ according to the equation:
Cl₂ + C6H6 C6H5Cl + HCI. What is the limiting reactant? What mass of HCI will be produced?
-
Answers
In the given reaction, the limiting reactant is C₆H₆ (benzene).
To determine the limiting reactant as well as calculate the mass of HCl produced, compare the moles of each reactant.
The number of moles for each reactant:
Molar mass of Cl₂ = 35.5 g/mol + 35.5 g/mol = 71 g/mol
Moles of Cl₂ = mass of Cl₂ / molar mass of Cl₂
= 45 g / 71 g/mol
= 0.634 moles of Cl₂
Molar mass of C₆H₆ (benzene) = 12 g/mol + 6(1 g/mol) = 78 g/mol
Moles of C₆H₆ = mass of C₆H₆ / molar mass of C₆H₆
= 45 g / 78 g/mol = 0.577 moles of C₆H₆
Determine the stoichiometry between Cl₂ and HCl:
Cl₂ + C₆H₆ → C₆H₅Cl + HCl
Here, we can see that 1 mole of Cl₂ produces 1 mole of HCl.
Thus, the limiting reactant is C₆H₆ (benzene).
Calculate the mass of HCl produced:
Molar mass of HCl = 1 g/mol + 35.5 g/mol = 36.5 g/mol
Moles of HCl produced = moles of C₆H₆ = 0.577 moles
Mass of HCl produced = moles of HCl produced × molar mass of HCl
Mass of HCl produced = 0.577 moles × 36.5 g/mol
≈ 21.04 g
Therefore, approximately 21.04 grams of HCl will be produced.
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4Al(s) + 30₂(g) → 2Al2O3 (s)
How many molecules of O₂ are used in the reaction?
How many oxygen atoms are required?
How many moles of Al2O3 are formed?
What is the mole ratio of Al to O₂?
Answers
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
Which is NOT a compound?
A. silicon dioxide
B. water
C. carbon dioxide gas
D. oxygen gas
Answers
Answer: Oxygen
Explanation: Its found on the periodic table as an element.
At constant current is passed through an electrolytic cell containing molten MgCl2 for 18 hr. if 4.8 x 105 g of Cl2
are obtained. Calculate the current in Amperes.
Answers
The current passing through the electrolytic cell is approximately 2.02 x 10^4 Amperes.
To calculate the current in amperes, we need to use Faraday's laws of electrolysis and the stoichiometry of the reaction.
Faraday's laws state that the amount of substance produced or consumed during electrolysis is directly proportional to the quantity of electricity passed through the cell. The relationship is given by:
Q = nF
Where Q is the electric charge in coulombs (C), n is the number of moles of substance involved in the reaction, and F is Faraday's constant, which is equal to 96,485 C/mol.
In this case, the substance being produced is Cl2, and we know the mass of Cl2 produced, which is 4.8 x 10^5 g.
First, we need to calculate the number of moles of Cl2 produced:
Molar mass of Cl2 = 35.45 g/mol
Moles of Cl2 = mass / molar mass = (4.8 x 10^5 g) / (35.45 g/mol) ≈ 1.354 x 10^4 mol
Now we can calculate the quantity of electricity passed through the cell using Faraday's laws:
Q = nF
Q = (\(1.354 x 10^4\)mol) * (96,485 C/mol)
Q ≈ 1.308 x 10^9 C
The quantity of electricity is given in coulombs. To find the current, we need to divide this value by the time in seconds.
Given that the time is 18 hours, we convert it to seconds:
Time = 18 hours * 60 minutes/hour * 60 seconds/minute
Time = 6.48 x 10^4 seconds
Finally, we can calculate the current:
Current (I) = Q / Time
I = (1.308 x 10^9 C) / (6.48 x 10^4 s)
I ≈ 2.02 x 10^4 Amperes
Therefore, the current passing through the electrolytic cell is approximately 2.02 x 10^4 Amperes.
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Which rule states that cracks on glass tend to form at a certain angle on the opposite side of the polnt of Impact?
The
rule states that cracks tend to form at a (n)
angle on the opposite side from the point of Impact.
Answers
Answer:
The 3R rule states that cracks tend to form at a (n) right angle on the opposite side from the point of impact.
Explanation:
I would calculate the number of protons by?
Answers
Answer:
The number of proton in an atom is equal to the atomic number of that element. Thus, Number of protons = Atomic number ( Z )
The same mass of 5 different potential fuels was used to heat the same mass of water in a simple calorimeter. The results are shown below. Based on these results, which of these substances would make the best fuel?
Answers
We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.
What is fuel?Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.
The results of the experiment are shown below:
Fuel Mass (g) Heat produced (J) Heat per gram (J/g)
Methanol 1.0 350 350
Ethanol 1.0 250 250
Propane 1.0 200 200
Butane 1.0 150 150
Pentane 1.0 100 100
It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.
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What is the mass percentage of carbon in 5.000 g of sucrose? 50.00 g of sucrose?
500.0 g of sucrose? Explain.
Answers
Answer:
first you have to know the molecular formula of carbon which is C12H22O11, Then with that you can calculate the mass of each element in the molecule. C:12.01*12= 144.12, H: 1.008*22= 22.176, O: 16*11= 176
Explanation: give me brainliest pls
what reaction involving atp releases a large amount of energy?
Answers
Answer: ATP hydrolysis
Explanation:
hope this helps<3
Naturally-occurring compounds called cyanogenic glycosides, such as lotaustralin, release hydrogen cyanide, HCN, when treated with aqueous acid. The reaction occurs by hydrolysis of the acetal linkage to form a cyanohydrin, which then expels CN- and gives a carbonyl compound. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism.
Answers
Answer:
hmmm
Explanation:
I have to make question longer this question
(Answer the question all the way at the bottom)
\
Do you breathe air?
Answers
Answer:
Of course I breathe air.
Explanation:
I'm not a fish.
Answer:
\(ummmmmmm \: yes \: \)
The single strand of nucleic acid shown is representative of
A). RNA
B). DNA
C). both RNA and DNA
D). protein
Answers
Please answer it truthfully please
Answers
Answer:
False
Explanation:
Chemical and Physical changes happen uniquely, they cannot happen at the same time. When you crumble a piece of paper you don't change its chemical form you change its physical form. When a piece of metal rusts its chemical composition changes, leading me to believe it is false.
Good luck on the rest of your assignment/test!
An ionic bond results due to the __________________________ attraction between two oppositely charged ion.
Answers
Answer:
Electrostatic
Explanation:
An ionic bond results from the electrostatic attraction between oppositely charged ion.
Usually, metallic ion is positively charge and the non-metallic ion is negatively charged.
The attraction results in the formation of an ionic bond. Ionic bond forms by the transfer of electrons from a metal to a non - metal. The charge separation causes the oppositely charged atoms to be attracted to one another.Which of the three goals of Persuasive Speaking is the hardest to achieve?
a.
weaken attitudes, beliefs or values
b.
strengthen attitudes, beliefs or values
c.
change attitudes, beliefs, or values
d.
motivate to action
Answers
Answer:
C
Explanation:
edge2021!!
Answer: The correct answer is c. change attitudes, beliefs or values.
Explanation:
Of these goals, the hardest to achieve is changing attitudes, beliefs, and values. It is difficult to convince an audience to truly change their attitudes, beliefs, or values based on your presentation since it typically requires establishing trust and respect on a personal level.
For the Haber process, N₂ + 3H₂-2NH3, what theoretical volume of ammonia (NH3
hould be produced if we start with 5.0L of N₂ if STP?
29.9
10.0
22.4
44.8
Answers
Explanation:
The theoretical volume of ammonia that should be produced in the Haber process if we start with 5.0 L of nitrogen (N2) at standard temperature and pressure (STP) can be calculated as follows:
1 mole of N2 reacts with 3 moles of H2 to form 2 moles of NH3
Thus, the number of moles of N2 present can be calculated using the Ideal Gas Law:
PV = nRT
Where n is the number of moles of gas, R is the gas constant, T is the temperature in Kelvin, P is the pressure in atmospheres, and V is the volume in liters.
At STP (0°C and 1 atm), the volume of one mole of gas is 24.45 L.
Given 5.0 L of N2 at STP, the number of moles of N2 can be calculated as:
n = (PV)/RT = (1 atm)(5.0 L)/(0.0821 atmL/molK)(273 K) = 1.96 moles
The number of moles of NH3 produced can then be calculated as:
n = (2 moles of NH3)/(1 mole of N2) = 2 moles/1 mole = 2 moles
The volume of NH3 can be calculated as:
V = nRT/P = (2 moles)(0.0821 atmL/molK)(273 K)/(1 atm) = 44.8 L
So, the theoretical volume of ammonia (NH3) that should be produced if we start with 5.0 L of N2 at STP is 44.8 L.