If you have 0.30 moles of gas that has a volume of 7.5 L, how many moles of gas will you need to have a volume of 30.0 L?

Answers

Answer 1

Answer:

[tex]187.[/tex]

Explanation:

[tex]7.5 \div 0.30 = 25[/tex]

[tex]7.5 \times 25 = 187.5[/tex]


Related Questions

Which organelles surround the cell?

Answers

Answer:

Cell Wall, Cell Membrane, Nucleus, Endoplasmic Reticulum (ER), and Ribosome.

Explanation:

Hopefully this helps :).

Answer:

the nucleus the largest organelle in eukaryotic cells is surrounded by the cells

How does a balanced chemical equation show the conservation of mass?
O A. It shows that the total number of moles of substances stays the
same.
B. It shows that the mass of the products is greater than the mass of
the reactants when a reaction increases the moles of substances.
O C. It shows that the mass of the reactants is greater than the mass
of the products when gases are produced by the reaction.
O D. It shows that the number of each type of atom stays the same.

Answers

Explanation:

Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. When an equal number of atoms of an element is present on both sides of a chemical equation, the equation is balanced.

What is the wavelength of a wave?

Answers

Answer:

Wavelength (λ) – The distance of one complete cycle in the wave. The distance between two consecutive crests and /or troughs. S.I. Unit: metre (m).

In other words:

Wavelength is the distance from crest to crest (or trough to trough).

define
compound?
covalent​

Answers

nic compounds are made up of electrically charged atoms or molecules as a result of gaining or losing electrons. ... Covalent, or molecular, compounds generally result from two nonmetals reacting with each other. The elements form a compound by sharing electrons, resulting in an electrically neutral molecule.

If I contain 3 moles of gas in a container with a volume of 90 liters and at a temperature of 400 K, what is the pressure inside the container? 1.09 atm

Answers

Answer:

there it is fella tried on ma own consciousness

Balance this equation

Cu(OH)2+ HCI - - - - - > CuCl2 + H2O​

Answers

[tex] \boxed{ \boxed{\huge{ \mathrm{  \underline{ Answer} \:  \:  ✓ }}}}[/tex]

The Balanced Chemical Equation for above reaction is :

[tex] \small \mathrm{Cu(OH)_2+ 2HCI\rightarrow CuCl _ 2 + 2H2O}[/tex]

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

10 points. Please help.


If you have 3 moles of gas at a pressure of 2.5 atmospheres and a volume of 8 liters, what is the temperature? Pay attention to the unit of pressure used.

Answers

Answer:

-191.7°C

Explanation:

P . V = n . R . T

That's the Ideal Gases Law. It can be useful to solve the question.

We replace data:

2.5 atm . 8 L = 3 mol . 0.082 L.atm/mol.K . T°

(2.5 atm . 8 L) / (3 mol . 0.082 L.atm/mol.K) = T°

T° = 81.3 K

We convert T° from K to C°

81.3K - 273 = -191.7°C

Answer:

The temperature is 81.3 K.

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

In this case:

P= 2.5 atmV= 8 Ln=3 molesR= 0.082 [tex]\frac{atm*L}{mol*K}[/tex]T= ?

Replacing:

2.5 atm* 8 L= 3 moles* 0.082 [tex]\frac{atm*L}{mol*K}[/tex] *T

Solving:

[tex]T=\frac{2.5 atm* 8 L}{3 moles* 0.082\frac{atm*L}{mol*K}}[/tex]

T= 81.3 K

The temperature is 81.3 K.

I kilogram mass
Define​

Answers

Kilogram (kg), basic unit of mass in the metric system. A kilogram is very nearly equal (it was originally intended to be exactly equal) to the mass of 1,000 cubic cm of water.

1.9 gm of a gas at 27 0C & 1.1 atm pressure occupies a volume of 1 ltr. The molecular mass of gas is, *
42.5 amu
3.83 amu
44 amu
32.5 amu

Answers

Answer:

42.5 amu

Explanation:

Using the ideal gas law equation;

PV = nRT

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question;

mass = 1.9g

T = 27°C = 27 + 273 = 300K

P = 1.1atm

V = 1L

n = ?

PV = nRT

1.1 × 1 = n × 0.0821 × 300

1.1 = 24.63n

n = 1.1/24.63

n = 0.045mol

Mole = mass/molecular mass

0.045 = 1.9/M.M

M.M = 1.9/0.045

M.M = 42.54amu

Calculate the Molar Mass of Radon pentaiodide (Rnls)
857
349
1237

Answers

Explanation:

222.01758 g/mol

3.1Computed Properties

Explain in terms of structure and bonding why carbon dioxide has a low boiling point and calcium carbide has a high boiling point

Answers

Answer:

See explanation

Explanation:

Let us consider the two compounds carefully. Carbon dioxide is purely a non-polar molecular compound while the bond between the C2^2- ion and Ca^2+ is ionic thereby making CaC2 an ionic compound.

Recall that ionic compounds have high melting and boiling points due to strong ionic interactions in the structure of the compound.

On the other hand, CO2 is a non-polar substance whose molecules are held together only by weak dispersion forces.

As a result of the reasons outlined above, carbon dioxide has a low boiling point and calcium carbide has a high boiling point.

An ideal gas is contained in a cylinder with a volume of 5.0x102 mL at a temperature of 30°C and a pressure of 710. Torr. The gas is then compressed to a volume of 25 mL, and the temperature is raised to 820° C. What is the new pressure of the gas?

Answers

Answer:

51207 torr is the new pressure of the gas

Explanation:

We can solve this question using combined gas law that states:

P1V1T2 = P2V2T1

Where P is pressure, V volume and T absolute temperature of 1, initial state and 2, final state of the gas

Computing the values of the problem:

P1 = 710torr

V1 = 5.0x10²mL

T1 = 273.15 + 30°C = 303.15K

P2 = ?

V2 = 25mL

T2 = 273.15 + 820°C = 1093.15K

Replacing:

710torr*5.0x10²mL*1093.15K = P2*25mL*303.15K

3.881x10⁸torr*mL*K = P2 * 7.579x10³mL*K

P2 = 51207 torr is the new pressure of the gas

Inyour body what's your systems work together to make sure that oxygen to all the organs of your body?

A. Respiratory and Excretory
B. Circulatory and Respiratory
C. Nervous and Excretory
D. Circulatory and Disgestive​

Answers

B is the correct one...

hey hey hey whats your favorite show any genre could be drama, scary, and even anime. just dont say riverdale please lol

Answers

Answer:

one piece and jujutsu kaisen

Explanation:

what your favorite?

Answer:

aot, noragami, yuukoku no moriarty and promise never land only season 1 tho

4. There are 1.9 moles of Oxygen gas at a pressure of 3.50 atm, and the temperature is 65°C. What is the
volume of the gas? Remember that R = 0.0821 L x atm/Kx mol AND that you must convert °C to K.
Fill in the variables chart:

Answers

Answer:

15.06 L

Explanation:

Using the ideal gas law equation:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question,

P = 3.50 atm

n = 1.9 moles

V = ?

T = 65°C = 65 + 273 = 338K

Using PV = nRT

V = nRT/P

V = (1.9 × 0.0821 × 338) ÷ (3.5)

V = 52.725 ÷ 3.5

V = 15.06 L

Balance the following equation by providing the correct coefficients C2H6 + O2 -> CO2 + H2O

Answers

2 C2H6 + 7 O2 ➡️ 4 CO2 + 6 H2O


Calculate the volume 3.00 moles of a gas will occupy at 24.0°C and 105.2
kPa,
140. L
35.4L
15.4L
70.4L

Answers

Answer:

70.34 litres

Explanation:

Using ideal gas law equation;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information given in the question;

n = 3 moles

V = ?

P = 105.2 KPa = 105.2/101 = 1.04atm

T = 24.0°C = 24 + 273 = 297K

Using PV = nRT

1.04 × V = 3 × 0.0821 × 297

1.04V = 73.15

V = 73.15 ÷ 1.04

V = 70.34 litres.

How many total valence electrons are in P2O?

Answers

Answer:

In thes structure of PO43- there are a total of 32 valence electrons. For the structure for PO4 3- you should take formal charges into account to find the best  structure for the molecule. Remember, PO4 3- has a negative three charge on the molecule.

Explanation:

Organize the following list of elements from highest to lowest Ionization Energy:
Phosphorus, Bismuth, Arsenic, Antimony, Nitrogen

Answers

Answer: The list of elements from highest to lowest Ionization Energy is Nitrogen > Phosphorus > Arsenic > Antimony > Bismuth.

Explanation:

The amount of energy required to remove the most loosely bound electron from an isolated gaseous atom or ion is called ionization energy.

Element with a half-filled orbital requires much more energy to remove an electron. This is because element with a half-filled electronic configuration is the most stable in nature.

More stable or tightly electrons are bound to the nucleus of an atom more will be its ionization energy. This also means that smaller is the atom higher will be its ionization energy.

When we move from top to bottom in a group the size of atom increases and the attraction between nucleus of atom and its valence electrons decreases. Hence, less will be the ionization energy.

Therefore, ionization energy decreases on moving down a group.

So, the given elements Phosphorus, Bismuth, Arsenic, Antimony, Nitrogen are all group 15 elements. Hence, decreasing order of their ionization energy is as follows.

Nitrogen > Phosphorus > Arsenic > Antimony > Bismuth

Thus, we can conclude that the list of elements from highest to lowest Ionization Energy is Nitrogen > Phosphorus > Arsenic > Antimony > Bismuth.

Which is the best example of a compound?

Gold

Ohydrogen peroxide

Air

ocean water
pls asap

Answers

Answer:Hydrogen Peroxide or Ocean Water

Explanation:

-H2O2 is compound with 2 elements hydrogen and oxygen.

-Salt water acts as if it were one substance even though it contains two substances salt and water.

-Gold is just an element Au

-Air is just oxygen

The saturation point for a solution is 250 grams of solute per 500 grams of solvent. If you pour 500 grams of
solute into 800. grams of solvent, how many grams of solute are in solution? 3-digit answer only

Answers

Answer: 400 g of solute is present in the solution

Explanation:

A solution consists of solute and solvent. A solute is defined as the component that is present in a smaller proportion and solvent is defined as the component that is present in a larger proportion.

Saturation point of a solution is defined as the point after which the solution becomes saturated. This simply means no more solute can be added to the solution.

Mass of solvent = 800 g

At saturation point, 500 g of solvent can dissolve 250 g of solute

Applying unitary method:

800 g of solvent will dissolve = [tex]\frac{250g}{500g}\times 800g=400g[/tex] of solute

Hence, 400 g of solute is present in the solution.

At a particular temperature and [A]0 = 2.00 x 10-2 Molar, concentration versus time data were collected for this reaction and a plot of ln[A]t versus time resulted in a straight line with a slope value of -2.97 x 10-2 min-1.

What is the half-life of this reaction?

Answers

Answer:kllkklkkkk

Explanation:

4. What happens to the size of an anion (compared to a neutral atom)? Why?

Answers

Apple apple cider vinegar and brown green green brown blue blue brown brown pink brown brown green green orange

Isotopes with unstable nuclei are __1__ and are called __2__. The __3__ of radioisotopes decay to __4__nuclei plus emission of large amounts of __5__ . The radiation may be alpha, __6__, or gamma. __7__ radiation consists of alpha particles (positively charged __8__ nuclei) that are easily stopped by a sheet of paper. Beta radiation is composed of fast-moving particles, which are __9__. Beta radiation is more penetrating than alpha radiation; it is stopped by __10__. __11__ radiation is electromagnetic radiation. Gamma radiation has no __12__ or electrical charge. It is extremely penetrating. __13__ bricks and __14__ reduce the intensity of gamma radiation but do not completely __15__ it.

Answers

Answer:

Following are the solution to the given question.

Explanation:

Isotopes are radioactive with unstable nuclei, called radioisotopes.Radioisotopes' cores decay into the stable core, with enormous quantities of radiation emissions.It could be either alpha, beta, or gamma.Alpha radiation is made up of alpha particles, that are easy to halt with such a piece of paper.Beta spread spectrum of quickly shifting, electrical electrons.Beta radiation permeates upwards of alpha radiation; metal foil gets halted.Electromagnetic radiation is gamma energy.There is also no electrical or mass radiation. It's also quite insightful.Lead brick and concrete lessen, but just don't stop, the strength of gamma radiation.

Answer:

radioisotopes is the answer.

Explanation:

Calculate the Molar Mass of Ba2(CO3)4
O 257
O 197
O 514

Answers

197, I’m sorry if I got it wrong

What does a bi-directional arrow tell you about a chemical reaction?

Answers

A two-headed arrow is used to show the presence of resonance/mesomerism in a molecular structure. The resonance is the movement of the electrons or the electron delocalization

Metals (m) in group 2 of the periodic table form ionic bonds with nonmetals (x) present in group ______ leading to formation of ionic compound with general formal of mx
A) 15
B) 16
C) 17
D) 18

Answers

Answer:

16

Explanation:

Metals in group 2 form ions of the sort M^2+. If they must form ionic compounds of general formula MX, then the non metal (X) must have a valency of 2 and form the ion X^2-.

Among the options listed, only elements of group 16 form ions of the sort  X^2-, hence they are able to form compounds of general formula MX with group 2 cations. Examples of such compounds include; CaS, MgS etc

Indicate whether the statements are True or False. CHANGE any false ones to make them true! _____ a) At equilibrium the amount of products must equal the amount of reactants. _____ b) During equilibrium, the concentration of the products does not change. _____ c) A collision between reactants is all that is needed to cause a reaction. _____ d) At the beginning of a reaction the forward reaction is faster than the reverse reaction, but then the forward reaction slows down as the reverse reaction speeds up.

Answers

Answer:

a. True

b. True

c. True

d. False

Explanation:

At equilibrium condition, the amount of products must be equal to the amount of reactants means 50% of reactant is converted into product and 50% of product is converted into reactant. During equilibrium, the concentration of the products as well as reactant does not change. Yes, a collision between reactants is needed to initiate and complete the reaction. If the concentrations of the reactants are too large, the rate of the forward reaction will be faster than the reverse reaction, and some of the reactants will be converted into products until equilibrium is achieved.

5. Pick the list with the correct order of elements according to their reactivity, with the most
reactive metal first to the least reactive metal last.
A. potassium, calcium, sodium, magnesium, aluminum
B. magnesium, calcium, sodium, potassium, aluminum
C. sodium, calcium, potassium, magnesium, aluminum
D. calcium, aluminum, sodium, potassium, magnesium

Answers

Answer: do you have the answer for this yet ?

Explanation:

I’m stuck on the same question as well.

HELP!! Suppose that the pressure of 1.00 L of gas is 380 mm Hg when the temperature is 200. K. At what
temperature is the volume 2.00 L and the pressure 0.750 atm?

Answers

Numa máquina térmica uma parte da energia térmica fornecida ao sistema(Q1) é transformada em trabalho mecânico (τ) e o restante (Q2) é dissipado, perdido para o ambiente.



sendo:

τ: trabalho realizado (J) [Joule]
Q1: energia fornecida (J)
Q2: energia dissipada (J)


temos: τ = Q1 - Q2

O rendimento (η) é a razão do trabalho realizado pela energia fornecida:

η= τ/Q1

Exercícior resolvido:
Uma máquina térmica cíclica recebe 5000 J de calor de uma fonte quente e realiza trabalho de 3500 J. Calcule o rendimento dessa máquina térmica.

solução:

τ=3500 J
Q1=5000J

η= τ/Q1
η= 3500/5000
η= 0,7 ou seja 70%

Energia dissipada será:



τ = Q1 - Q2
Q2 = Q1- τ

Q2=5000-3500
Q2= 1500 J

Exercicio: Qual seria o rendimento se a máquina do exercicio anterior realizasse 4000J de trabalho com a mesma quantidade de calor fornecida ? Quanta energia seria dissipada agora?



obs: Entregar foto da resolução ou o cálculo passo a passo na mensagem
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