What is the correct value using 3 significant figures for 14.8232 g/mol?

Answers

Answer 1

Answer:

14.8 g/mol

Explanation:

Starting on the left, count in 3 numbers (14.8), then round using the next number (0.02).

Because 2 is less than 5, the number stays the same and is not rounded up.


Related Questions

5. Aidan is on a carnping trip with his family. As the temperature decreases
Aidan suggests building a campfire. Which of the following explains why
heat moves from the campfire to the people sitting around it? *

Answers

Answer:

Because heat flows from warmer objects to cooler objects

Explanation:

Which of the following is NOT an example of a chemical change? *
O Corrosion
O Grinding
O Combustion
O Rust

Answers

Grinding as it’s a physical not chemical change :)

helppppppppppppp plzzzzzzzz Identify each structure based on its label.

Compound A is a
amine.
Compound B is a
amine.
Compound C is a
amine.
Compound D is
.

Answers

A I hope it helps :)

Answer:

kldja

Explanation:

A.) primary

B.) tertiary

C.) secondary

D.) ammonia

edge2020

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. The chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production. c. Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. Chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone.

Answers

Answer:

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer?  Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone.

Explanation:

The statement for small quantities of chlorofluorocarbons so harmful to the ozone layer is "Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone."

What is ozone layer?

The ozone layer is a thin layer of air in the Earth's atmosphere that absorbs nearly all of the sun's damaging UV radiation.

What is CFCs?

CFCs (chlorofluorocarbons) are harmless and nonflammable compounds made up of carbon, chlorine, and fluorine atoms.

The earth's protective ozone layer is destroyed by chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and halons, which shield the earth from damaging ultraviolet (UV-B) rays released by the sun. CFCs and HCFCs also warm the earth's lower atmosphere, causing global climate change.

When some substances are exposed to high UV radiation in the stratosphere, they emit chlorine or bromine. Ozone-depleting chemicals are compounds that contribute to ozone depletion (ODS). Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), carbon tetrachloride, and methyl chloroform are examples of ODS that produce chlorine. Halons and methyl bromide are two ODS that emit bromine.

Because there isn't much ozone in the atmosphere, what little there is is critical for protecting the Earth's surface from excessive UV light from the Sun. It turns out that it reacts with chlorine, which means that chlorine effectively eliminates ozone.

When the chlorine in CFCs combines with ultraviolet light, it releases chlorine, which then reacts with ozone, reducing the protection humans get from ultraviolet light, allowing more CFCs to release chlorine, and so on. Multiple ozone molecules will interact with one free chlorine atom, which is free because UV light has hit the CFC molecule. As a result, the damage it can cause is likely to be significantly more than you might imagine.

Hence the correct option is c.

Learn more about ozone layer and CFCs here

https://brainly.com/question/14330630

#SPJ2

True or false

Each family represents the number of energy levels present in an atom of the element.

Answers

Answer:

true because of the elements

Ou are subliming camphor and you note that pure camphor is condensing nicely on the cold finger. You check on the process several minutes later and you see that the amount of camphor on the cold finger has not changed appreciably since the last time you looked at it. However, there is still plenty of impure camphor left at the bottom of the flask. What do you suppose is the reason and what do you need to do.

Answers

Answer:

The reaction is endothermic

Increase temperature of the flask

Explanation:

Sublimation is a phenomenon in which a substance changes directly from solid to gas,without passing through the liquid phase.

Camphor is a sublime substance. The sublimation of camphor is an endothermic reaction. This implies that energy is absorbed in the process.

For an endothermic reaction, the equilibrium position is shifted towards the right hand side by increasing the temperature of the system. Hence, if the flask is heated, more camphor will condense within a shorter time interval.

Why is the nitrogen cycle considered a closed system?

Answers

Answer:

because nitrogen is fixed by bacteria and assimilated by plants

Explanation:

Answer:

It is a considered a closed system because nitrogen is fixed by bacteria and is taken in by plants.

Explanation:

500 gram of flour added with 1L of water anong lalagyan o bottle magkakasya ang 500gram of flour ang 1L of water​

Answers

Answer:

it will become a bread

Explanation:

net Mass will become 1.5 liter

Which of these statements describes a chemical property?

Answers

Answer:

it rusts when exposed to air

Answer:

A

Explanation:

HELP ASAPP JUST TELL ME WHAT TO PUT IN THE MISSING SPACES words(cell,microorganisms,micrometer,microscopic,molecule)

Answers

Answer:

microorganisms, molecule, microscopic, cell, micrometer

Explanation:

If you find my answer helpful

Pls consider marking it as Brainliest! It would mean a lot!

which of the following is a state of matter ? particle,thermal,plasma, and diffuse ?

Answers

Answer:

a particle

Explanation:

matter takes up space, and particles take place in atoms

Answer:

plasma is a state of matter

when Lithium forms an ionic compound with carbonate, how many of each ion is needed?

Answers

Answer:

Two Lithium ions and one carbonate ion

Explanation:

Let us look at this equation;

Li2CO3(s) ------->2Li^(aq) + CO3^2-(aq)

We can see that each unit of Li2CO3 has two lithium ions and one carbonate ion.

Let us not forget that Li has a valency of 1 while carbonate ion has a valency of 2. Exchange of valencies gives the final formula of the compound.

Answer:

Two Lithium ions and one carbonate ion

Explanation:

25 POINTS
Boyd takes additional measurements of the mass of product formed in a reaction. He uses a balance that has smaller graduations than the first balance he used.
What is Boyd most likely trying to change?

Options:
He is trying to increase his accuracy but not his precision.
He is trying to increase his precision but not his accuracy.
He is trying to decrease his precision and increase his accuracy.
He is trying to increase his precision and decrease his accuracy.

Answers

Answer:

The correct option is A: "He is trying to increase his accuracy but not his precision"

Explanation:

Accuracy of measurement is when the value of the measurement is close to the actual value of that measurement while precision is when the experiment is repeated using the same instrument but obtaining different values.

When Boyd changed the weighing balance in his experiment to a smaller one, the smaller weighing balance has better accuracy (smaller graduations) than the initially used one because the smaller weighing balance will provide a value close to the actual value of the mass of the product. If he had, however, repeated the experiment without changing the weighing balance, he would have sought to increase his precision.

From the description above, it can be said that Boyd was trying to increase his accuracy but not his precision

Answer:

The correct option is A: "He is trying to increase his accuracy but not his precision"

Explanation:

right on EDGE 2021

WHOEVER ANSWERS THIS QUESTION FIRST WILL GET BRAINLIEST!!
PLEASE HURRY!!!

Select 5 elements that form ions in an isoelectronic series with the noble gas Argon. Support your claim with evidence and scientific reasoning.

Answers

Answer:

                           

Explanation:

                                 

Help pleaI’ll give brainliest

Which element has the
greatest number of valence electrons available for bonding?
O selenium
Oboron
O calcium
O chlorine

Answers

The element Chlorine has the greatest number of valence electrons for bonding. This is because selenium has 6 valence electrons, boron has 3 valence electrons, calcium has 2 valence electrons, and chlorine has 7 valence electrons. Therefore we can see that since 7 is the greatest number chlorine has the greatest number of valence electrons.

How to find the number of atoms?

Answers

To find the number of atoms, we multiple the number of mols by Avogadro's number, about 6.02x10^23

Mark Brainliest!

Answer:

to calculate the numbers of atoms in a sample, divide it's weight in grams by the amu atomic mass from the periodic table, then multiply the result by avogadro's number: 6.0 × 10^24

which element has the electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d8

Answers

Answer:

Darmstadtium

Explanation:

An element with the electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p⁶7s²5f¹⁴6d⁸ has 110 electrons in its electron shells.

Since the element is a neutral atom, this number is also equal to its atomic number. Therefore, its atomic number is 110.

The element in the period table that has an atomic number of 110 is Darmstadtium, a d-block element, thus a transittion metal. It also belong to period 7 in the Periodic table of elements.

The element that has the electron configuration is Darmstadtium.

Electronic configuration:

Since An element with the electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p⁶7s²5f¹⁴6d⁸ contains 110 electrons in its electron shells.

Also, the element should be a neutral atom, this number should also equal to its atomic number. Therefore, its atomic number is 110.

The element in the periodic table that has an atomic number of 110 is Darmstadtium, a d-block element, thus a transition metal.

Learn more about electron here: https://brainly.com/question/24850343

Calculate the enthalpy change to raise the temperature of 180.0 g of water from 10.0°C to 40.0°C. The molar heat capacity for water is 75.3 J/Kmol. a. What values have you been given? b. What value are you trying to find? c. Which heat equation do you need? d. Now solve the problem.

Answers

Answer:

22572J

Explanation:

a) The following values have been given:

Mass of water = 180.0g

Initial temperature = 10°C

Final temperature = 40°C

molar heat capacity for water = 75.3J/Kmol

To calculate the specific heat capacity of water (c), we divide the molar heat capacity by molar mass of water (18g/mol)

That is; 75.3/18

= 4.183 Jg/K

b) The enthalpy change denoted by ∆H is the value we are trying to find.

c) To find enthalpy change (∆H), we use the formula:

∆H = m × c × ∆T

Where; m= mass

c= specific heat capacity

∆T= change in temperature =

(final temp - initial temp)

∆H = m × c × ∆T

∆H = 180 × 4.18 × (40-10)

∆H = 180 × 4.18 × 30

∆H = 22572J

3. In an exercise to teach students how to use and analytical balance, the instructor
gives a student a quarter which has been pre-weighed as 5.6026 g. The weight that the
student obtains for the same quarter is 5.6013 g. What is the percent error in the
students reading?

Answers

Answer:

The percent error is 0.023%.

Explanation:

Pre-weighed of a quarter is 5.6026 g.

The weight that the  student obtains for the same quarter is 5.6013 g.

We need to find the percent error in the students reading. It is given by the formula as follows :

[tex]\%=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\times 100[/tex]

Putting all the values, we get :

[tex]\%=\dfrac{5.6026 -5.6013 }{5.6026 }\times 100\\\\\%=0.023\%[/tex]

So, the percent error is 0.023%.

How would you arrange the objects below from greatest to least volume?

A balloon
A water bottle
A bottle of soda
A rock

Answers

Answer:

A balloon

A bottle of soda

A rock

A water bottle

Explanation:

A rock
A balloon
A water bottle
A bottle of soda.


What’s this called please help

Answers

Answer:

the answer is a linear

Explanation:

heres a graph different ones at this link

An unknown substance has a volume of 2 cm3 and a mass of 38.6 grams.
What is the density of the sample?

Answers

Answer:

The answer is 19.3 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{38.6}{2} \\ [/tex]

We have the final answer as

19.3 g/cm³

Hope this helps you

the ability for a substance to rust is
a. oxidation
b.rustability
c.magnetic attraction
d.reactivity

Answers

Answer:

i think it is letter b. rustability but not so sureeee

What is Aerosol,sol and gel​

Answers

Aerosol: When particles of solid or liquid get dispersed in a gaseous medium, the mixture is known as Aerosol. ... Sol: Sol is a colloidal system where the dispersed phase is solid, and the dispersion medium is liquid. • Gel: Gel is a colloidal system where the dispersed phase is solid, and the dispersion medium is liquid.

Molecules in a liquid are:
closer together than in a gas
moving more quickly than in a solid
moving more slowly than in a gas
all of the above
Please help!!!

Answers

Answer:

all of the above

Explanation:

Answer
All of the above
Explanation:

A physical change is easier / more difficult to reverse than a chemical change.

Answers

Answer:

the answer is that a physical change is easier to reverse then a chemical change.

Explanation: In order for a physical change to take place it's easier to just undo what happened then if it was a chemical change because in order for very few chemical changes to reverse to it's original substance you would need another chemical change.

Which is the IUPAC name for NO?
nitric oxide
binitrogen oxide
dinitrogen dioxide
nitrogen monoxide

Answers

The IUPAC name for NO is nitric oxide. The correct option is A.

What is IUPAC naming?

The International Union of Pure and Applied Chemistry (IUPAC) is a global organization that represents chemistry as well as related sciences and technologies.

The chemical compound's identity is represented by its common and IUPAC names, which differ from one another. Every chemical compound has multiple names.

Complete the following step-by-step response: The IUPAC nomenclature is a standardized name given to organic compounds in accordance with official naming rules.

Nitric oxide, also known as NO, is a colorless gas. It is one of the most important nitrogen oxides.

Nitric oxide is a free radical, which means it has an unpaired electron, which is sometimes represented in its chemical formula by a dot.

Thus, the correct option is A.

For more details regarding IUPAC, visit:

https://brainly.com/question/16631447

#SPJ6

Answer:

D: Nitrogen Monoxide

Explanation:

There's one Nitrogen atom and one Oxygen atom

what is the journey around the sun by earth called, and how long does it take?

Answers

Answer:

Its called ecliptic and it takes 365 days

Explanation:

Answer:

The journey around the Sun by Earth is called a revolution, it takes 365-and-a-quarter-days.

Explanation:

What are the reactants of photosynthesis?

Answers

Answer:

The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.

Explanation:

how many atoms are in CaCI2​

Answers

Answer:

4

Explanation:

bc Ca is 1 C is one L is two

CaCl₂ is an ionic compound consisting of one calcium ion and two chloride ions; a single calcium ion has a doubly positive charge while a single chloride ion has a single negative charge. So two chloride ions bonded to one calcium ion results in an electrically neutral calcium chloride compound.

In this particular case, an ion is merely an atom with a positive or negative charge. Since there are three ions that comprise CaCl₂, there are three atoms in a single unit of CaCl₂.

Do not confuse the C here for carbon and/or the I for iodine. There is no chemical element whose symbol is “L” (yet).
Other Questions
Provide reasons for the proof.Given: 24 and 2 and 3 are supplementaryProve: 1 3 What would happen if America became a communist country? difference between a molecule and a cell. WILL GIVE BRAINLIEST!!!!!!!!After a forest fire what would be the first change in a forest?Pioneer species are establishedA climax community is establishedWind carries seeds to the area and plants grow from these seedsNew soil forms from rock 1.- A You ......... take scissors on the plane. Theyre not allowedB Ok. Ill pack them in the luggage. couldcantcouldnt2.- A How was your flight?B Well, my original flight got canceled. But I ___________ able to get on another one two hours later. waswont bewasnt3.-A. Is that my water bottle or ...........?B Its mine youyouryours4.- A. Is this her suitcase? B No, ........... is already checked. herhersmine5.- A Could I please have a bus schedule=B. Yes, of course you ............ Here you gocancouldcant6.- A We .......... board now. They just calle our section. B Great. Let me get my bagcancouldntcant7.- A David .... abot to take this juice on the plane. B Ok. Ill tell him to drink it nowwasntwont bewill be8.- A Did you forget your bag on the bus?B Its not ours. Its............theirtherestheirs9.- A would I have a transfer ticket? B Ok. Here you arewouldcouldwill10. A Excuse me. .............. you please sit down?B of course. Im sorrymaycantwould Type the correct answer in the box. Spell all words correctly.Which artistic technique does an artist use to draw images made up of tiny dots?Katie is an artist. She uses the..............technique to draw images made up of tiny dots. -3(f - 8) = 39 Distributive Property Brainly The grandpapa car traffic function is shown check although following statements are true of the function A glacier is moving at a rate of 0.3 inches every hour. The table below represents this relationship.Glacial MovementDistance Moved (inches)Time(hours)0.310.620.93x4What value of x completes the table? (4+3c^5)(4-3c^5) combine like terms In a 20 item true-false examination, if 12 correct answers constitute a passing grade,what is the probability that someone will pass, if they are guessing? A. .8398B. .2517C. .1201D. .1317 Steven boxes in the light-heavyweight division 4/-7 + -6/5 In simplest form who founded America Read the text The History of Ice Cream:I scream, you scream, we all scream for ice cream! Who doesn't love a nice, cold scoop of ice cream on a warm day? For thousands of years, ice cream has been a decadent dessert loved by most people around the world.There is some argument about who first invented ice cream. Some believe that ice cream was invented by the Chinese people anywhere from 2,000 to 6,000 years ago. They created a recipe of frozen milk and rice that was served as a dessert. Persia has also been credited with first serving frozen desserts. Over 2,000 years ago, the wealthy people of Persia enjoyed shaved ice from the mountains, covered with grape juice. They later learned to freeze rosewater and add different fruit toppings. These desserts were considered delicacies that only the richest families could experience. About 1,000 years after this, there is evidence that suggested Nero, the Roman Emperor, also enjoyed frozen treats and demanded that a constant supply of ice from the mountains be available to him. He liked to add honey to the top of his dessert.Why could only the richest families eat ice cream? Ice cream needed to be stored in a freezer. Ice cream was expensive because it was a rare dessert. Ice cream was hard to obtain from the mountains. Ice cream was only available to those in Italy.PLEASE HELP WILL GIVE BRAINLYEST I NEED HELP PLZ!! Runner 3 does not get a head start. He runs 750 meters every 3 minutes. Write an equation to represent Runner 3s distance y for x minutes.A. y=3x+250B. 750x+3C. 250x+3D. 250x Witch theme is shown MOST clearly in this excerpt A. Dreaming can be a distraction from achieving goals.B. Reality can oftentimes seem like dream.C. Winning is proof that a person has worked hard.D. Success is possible if one truly believes in oneself Below are cash transactions for a company, which provides consulting services related to mining of precious metals. a. Cash used for purchase of office supplies, $1,600. b. Cash provided from consulting to customers, $42,600. c. Cash used for purchase of mining equipment, $67,000. d. Cash provided from long-term borrowing, $54,000. e. Cash used for payment of employee salaries, $23,400. f. Cash used for payment of office rent, $11,400. g. Cash provided from sale of equipment purchased in c. above, $21,900. h. Cash used to repay a portion of the long-term borrowing in d. above, $37,000. i. Cash used to pay office utilities, $3,700. j. Purchase of company vehicle, paying $9,400 cash.Required:Calculate cash flows from operating activities. Which civilization formed a confederation that may have impacted the USgovernment?A) AnasaziOB) IroquoisC) PowhatanOD) Algonquian An).is anything that increases the chances of an unhealthy outcome.A. risk factorB. action planC. health continuumD. habit