What is the mass of 1.00 mol of oxygen (O2)?

Answers

Answer 1

Answer:

Mass = 32 g

Explanation:

Given data:

Number of moles of oxygen = 1.0 mol

Mass of oxygen = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of oxygen (O₂) is  32 g/mol

by putting values,

1.0 mol = mass/ 32 g/mol

Mass = 1.0 mol ×32 g/mol

Mass = 32 g


Related Questions

Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock.

true or false

Answers

ANDESITE is a fine grained rock that formed when magma irrupt it onto the surface and crystallized quickly ANDESITE & DIORITE have a composition that is intermediate between basalt.This is because their parent magmas formed from the PARTIAL melting of a BASALTIC oceanic plate.

Explain how kingdoms and domains are different.

Answers

Answer: A domain is a taxonomic category above the kingdom level. The three domains are: Bacteria, Archaea, and Eukarya, which are the major categories of life. Essentially, domains are superkingdoms. A kingdom is a taxonomic group that contains one or more phyla. The four traditional kingdoms of Eukarya include: Protista, Fungi, Plantae, and Animalia.

Explanation:

Answer:

A domain is a taxonomic category above the kingdom level. The three domains are: Bacteria, Archaea, and Eukarya, which are the major categories of life. ... A kingdom is a taxonomic group that contains one or more phyla. The four traditional kingdoms of Eukarya include: Protista, Fungi, Plantae, and Animalia.

Explanation:

hope you get a good grade lol I'm in FLVS and this was one of my questions :D

CAN YOU PLZ HELP ME ITS TIMED BRAINLIEST!
ONLY ANSWER IF YOU KNOW THE ANSWER PLZ!
The diagram shows two chromosomes paired up.

Which process is being shown?
sexual reproduction
independent assortment
crossing over
chromosome separation

Answers

Answer:

the sexual reproduction

Explanation:

Help lol please lol thank you :)

Answers

Answer:

45

Explanation:

Answer:

45 lol

Explanation:

Identify each of the following:

most metallic Ge or Sb
largest atomic radius Sn or Bi
highest ionization energy Cl or Sb ​

Answers

Most metallic: Ge

Largest atomic radius: Bi

Highest ionization energy: Cl

Could you mark me as brainliest?

What are new substances formed in a chemical reaction called?​

Answers

Answer:

Products

Explanation:

Reactants → Products

Chemical reactions are characterized by the formation of new products, and the making and breaking off strong chemical bonds.

Answer: They are the PRODUCTS of the reaction.

Explanation: In a chemical reaction, there are the REACTANTS and the PRODUCTS.

The reactants are the "ingredients" in the chemical formula. They are what are being chemically combined in a way.

The products are the "meal," or what the reactants combined to create.

For example, when creating salt or NaCl, this is essentially the formula:

Na + Cl = NaCl

In this formula, Na (sodium) and Cl (chlorine) are the reactants. NaCl (sodium chloride, aka salt) is the product.

I hope this clears things up, and I hope this was the context in which the question was asked!

Which equation best represents the balanced net ionic equation for the reaction that occurs when aqueous solutions of lithium phosphate and magnesium nitrate are mixed?

Answers

Answer:

2 PO₄³⁻(aq) + 3 Mg²⁺(aq) ⇒ Mg₃(PO₄)₂(s)

Explanation:

Let's consider the molecular equation that occurs when aqueous solutions of lithium phosphate and magnesium nitrate are mixed.

2 Li₃PO₄(aq) + 3 Mg(NO₃)₂(aq) ⇒ 6 LiNO₃(aq) + Mg₃(PO₄)₂(s)

The complete ionic equation includes all the ions and insoluble species.

6 Li⁺(aq) + 2 PO₄³⁻(aq) + 3 Mg²⁺(aq) + 6 NO₃⁻(aq) ⇒ 6 Li⁺(aq) + 6 NO₃⁻(aq) + Mg₃(PO₄)₂(s)

The net ionic equation includes only the ions that participate in the reaction and insoluble species.

2 PO₄³⁻(aq) + 3 Mg²⁺(aq) ⇒ Mg₃(PO₄)₂(s)

Magnesium bromide is an ionic compound with the chemical form MgBr2 what does the 2 tell you

Answers

Answer:

The number of Bromine combining magnesium

Explanation:

The subscript gives the number of atom/s combining to form a compound. For this problem, 1 atom of Mg combines with 2 atoms of Br.

To form the ionic combine, Mg will lose two electrons. A bromine atom requires just one electron to have a complete octet. So, two bromine atoms will be needed to complete the bonding process.

Therefore, Mg loses two electrons to two Br atoms and the electrostatic attraction from the charges created forms the ionic bond.

The number 2 represents the number of bromine atoms.

An ionic compound is formed when the complete transfer of electrons takes place from one element (usually metals) to another element (usually non-metals).The element losing electron (metal) forms a positive ion known as a cation while the element gaining electron (non-metal) forms a negative ion known as an anion.

Magnesium bromide is formed by the combination of magnesium (metal) and bromine (non-metal).

The valency of magnesium is 2 while that of bromine is 1. To form a neutral compound 2 moles of bromine ion combines with 1 mole of magesium ion.

Thus, the number 2 represents the number of bromine atoms.

Learn more about ionic compounds: https://brainly.com/question/9167977

How many moles of aluminum are equivalent to 4.816 × 1024 atoms?
A.12.5
B.8
C.1.25
D.08

Answers

Answer:

6.591

Explanation:

= 6.951 moles

Answer: 8

Explanation:

What do you think is the common link between each of the phenomena shown?

Answers

Answer:

sounds wave

Explanation:

From alarm, microwave, laser, TV, water waves and a musical instrument, everything release sounds.

(Not the same)

If it convinced you please add this in the brainlist

Please answer this question for meeeeeeeeeee pleeeeeeeeeease!
Which of the following is an example of chemical energy being used?
A. Battery in a flashlight
B. Ice melting
C. Riding a bicycle
D. Mercury rising in a thermometer

WARNING: Sorry I'm only in 5th grade so if you see my level as collage I had to put that because it would not let me put anything else

Answers

Answer:battery in a flashlight so A

Explanation:

Help with this question pleasee

Answers

Solids. Example: when you hit a drum, it vibrates, then the sound travels through the air, to your ears.
The answer would be solids

What word is used to refer to a group of organ systems working together? organism cell tissue organ

Answers

The answer is most likely organism.

Organism word is used to refer to a group of organ systems working together. Hence, option A is correct.

What is a cell?

In biology, the smallest unit can live on its own and that makes up all living organisms and the tissues of the body.

An organ system is two or more organs working together to perform a specialized function.

Hence, organism word is used to refer to a group of organ systems working together.

Learn more about cell here:

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need help with this........................................................

Answers

F student 1 because it is a more logical answer
F student is the answer . enjoy

How many significant figures
are in this number?
21.00

Answers

Answer:

4

Explanation:

the significant figures are 2 1 0 0

What do you need to know about stock solution on order to calculate a dilution?

Answers

You will need to know the volume and the concentration of the stock dilution in order to find the concentrations of the rest of the solutions you create.

Which best describes a difference between energy transformation in power plants and dams?

Answers

Answer:

Which best describes a difference between energy transformations in power plants and dams? Only power plants use fossil fuels to transform energy. Only dams use fission to generate thermal energy. ... Only dams use mechanical energy to produce electricity.

Explanation:

HOPE THIS HELP

PICK ME AS THE BRAINLIEST

How many mL of O2 at STP are produced from 1.5 g KClO3

Answers

Answer:

64.2 L

i watch videos about this stuff because my grades were very low now im bringing the up

Explanation:

In order to be able to calculate the volume of oxygen gas produced by this reaction, you need to know the conditions for pressure and temperature.

Since no mention of those conditions was made, I'll assume that the reaction takes place at STP, Standard Temperature and Pressure.

STP conditions are defined as a pressure of

100 kPa

and a temperature of 0∘C

. Under these conditions for pressure and temperature, one mole of any ideal gas occupies

22.7 L

- this is known as the molar volume of a gas at STP.

So, in order to find the volume of oxygen gas at STP, you need to know how many moles of oxygen are produced by this reaction.

The balanced chemical equation for this decomposition reaction looks like this

2KClO3(s]heat×−−−→2KCl(s]+3O2(g]↑⏐

Shifts in the rock layer locations cannot account for gaps in the rock record

true or false

Answers

Answer: That would be false because it is the contact between two layers representing a gap in the geologic record, usually from the erosion of the layers which would normally be expected to appear.

Explanation:

Have a good day

I hope this helps if not sorry :(

Stay motivated

Why is it important to know which category of microorganism has caused an infection?

Select one:
a. Treatment depends on which kind of organism caused the infection.
b. Probiotic infections can actually worsen some conditions.
c. Some infections can indicate cancer.
d. Some types of infections are highly contagious.

PLEASE ANSWER QUICKLY

Answers

ima say a cause it sounds smart realistically

Answer:

A

Explanation:

why is it important to know the number of valence electrons in an atom?

Answers

Answer:

Valence electrons are the electrons in the outermost energy level of an atom — in the energy level that is farthest away from the nucleus. Being able to determine the number of valence electrons in a particular atom gives you a big clue as to how that atom will react.

Explanation:

Copper(I) complexes tend to be tetrahedral rather than octahedral or square planar. Why is this the case? Explain your reasoning.

Answers

Answer:

The ion is d^10

Explanation:

Tetrahedral geometry is one in which the central atom/ion is located at the center of four ligands positioned at the corners of a tetrahedron.

It is different from a square planar complex wherein the ligands are positioned at the corners of a square with the central atom/ion at the center of the square.

Tetrahedral complexes are more common with d^10 species.The electronic configuration of Cu I is [Ar]3d104s1. Hence, a tetrahedral geometry is preferred over a square planar geometry.

Describe a chemical property of iron that you observed.​

Answers

Answer:

Iron can rust in damp conditions. Or, it can dissolve readily in dilute acids.

Explanation:

what does the changing the Aperture do when taking a photo? *
4.What effect can you get from using a slow shutter speed? *
5.What effect can you create by using a quick shutter speed

Answers

Answer:

Slower shutter speeds like 1/60 second and slower cause a blurring effect. If you want to take a picture using a slow shutter speed, it is best to mount the camera on a tripod and use image stabilization (such as SteadyShot® technology) to reduce the chance of any unwanted camera movement.

The first big effect of it is motion blur. If your shutter speed is long, moving subjects in your photo will appear blurred along the direction of motion. ... If you use an especially fast shutter speed, you can eliminate motion even from fast-moving objects, like birds in flight, or cars driving past.

Explanation:

Why are standard electrode potentials usually measured at 1.0 M electrolyte concentration?

Answers

Answer:

To avoid variation due to concentration

Explanation:

Hope this helps :)

Can anyone solve the little chart at the bottom?

Answers

In the first chart (NH4)2SO4
Nitrogen is 2
Hydrogen is 8 (h4*2)
Sulfur is 1
Oxygen is 4

For the second chart
Nitrogen i believe is 2
Hydrogen would be 10
Sulfur would should 1
and Oxygen should be 4

The percent by mass of Ca in CaCl2 is equal to
1. (40/111) x 100
2. (111/40) x 100
3. (3/1) x 100
4. (1/3) x 100

Answers

Answer:

(40/111)×100Here is a bonus Answer✍️✍️Percent composition by elementElement Symbol Mass PercentChlorine Cl 63.888%Calcium Ca 36.112

Mass percentage does not have any unit as numerator and denominator contains the same unit. The percent by mass of Ca in CaCl[tex]_2[/tex] is equal to (40/111) x 100. The correct option is option A.

What is percentage by mass?

Mass percentage represents the the percentage of each element that is making a particular compound.

Mathematically,

Percentage of mass = (component’s mass ÷ total mass) x 100%

Atomic weight of different element of calcium chloride{ CaCl[tex]_2[/tex]} are

Ca = 40 ; Cl = 35

Total mass of Calcium element in calcium chloride = 40g/mol

Total mass of Chlorine atom in calcium chloride = 35× 2= 71g/mol

Total molar mass of calcium phosphate = 40 +71= 111g/mole

Percentage of calcium in calcium chloride =40÷111 = 36%

Therefore, the percent by mass of Ca in CaCl2 is equal to (40/111) x 100. The correct option is option A.

To learn more about mass percentage, here:

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ADD NOTE
O QUESTION
1. A student notices that the moon is full one evening. Which sequence of moon phases
will the student observe over the next eight days?
O
Full, waxing gibbous, new, waning crescent
O
Full, waning gibbous, first quarter, waning crescent
O
Full, new, waning gibbous
O
Full, waning gibbous, third quarter
CLEAR AL
oooo

Answers

fill , waning gibbous , first quarter , waning crescent

please help this makes no sense to me!!

Answers

Answer:

potassium nitrate= KNO3 ---> KNO2 + O2 and a gas evolution reaction

Explanation:

i think

5) How many kilograms are there in 7.50 x 10^26 molecules of sulfuric acid?

Answers

Answer:

I think It might be ( 122.5g )

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Write a recursive function that accepts two arguments into the parameters x and y. The function should return the value of x times y. Hint: multiplication can be performed as repeated addition. Test your recursive function by prompting the user to enter values for x and y and then displaying the result. Your function should be able to handle multiplication of negative values. please help me What percentage of people in Latin America live in cities?A.very few, less than 10%B.about 25%C.about 50%D.the vast majority, more than 75%Please select the best answer from the choices providedABCD Read the excerpt from chapter 8 of The Travels of Marco Polo.Dhofar is a fine city of great size and splendour lying about 500 miles north-west of Shihir. Here again the people are Saracens and worship Mahomet, and are subject to a count who is likewise subject to the sultan of Aden. You must understand that this city is still within the province of Aden. 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