sulfur hexafluoride gas is collected at in an evacuated flask with a measured volume of . when all the gas has been collected, the pressure in the flask is measured to be . calculate the mass and number of moles of sulfur hexafluoride gas that were collected. be sure your answer has the correct number of significant digits.

Answer: A: When the rider is at the top of the hill, her potential energy is greatest, and her kinetic energy is the least.

Explanation:

Answer:

d. forced migration

Explanation:

Certain hazardous occurrences affect living organisms in their natural habitat. One of those occurrences is forest fire. Forest fire or vegetation fire is an uncontrollable break out of fire in a vegetation, affecting the inhabitants of the area.

The occurrence of a forest fire will lead to a forced migration of organisms from their natural habitat. Animals and other mobile organisms will be forced to leave behind their devastating habitat and migrate to a less threatened area in order to survive.

Answer:

D

Explanation:

The guy above is correct but I’m saying this for those who don’t want an explanation

Answer:

I'm not really advanced at these type of problems, but it looks like it's 1. If I'm wrong, sorry.

The volume of the hydrogen gas is 17.6 L.

We know that the volume of the hydrogen that we can get using the stoichiometry of the reaction and that is what we are going to do here. We can see that from the question, we have;

Number of moles of the Arsenic = 39.3g /75 g/mol

= 0.524 moles

We have;

2 moles of arsenic produces 3 moles of hydrogen

0.524 moles of arsenic produces x moles of hydrogen

x = 0.524 moles * 3 moles/ 2 moles

= 0.786 moles

Mass of the oxygen =  0.786 moles * 22.4 L

= 17.6 L

Learn more about volume:https://brainly.com/question/24189159

#SPJ1

Answer:

Below is the clarification of that same particular question.

Explanation:

For that kind of weak diprotic predictor, the standard economic statement can indeed be published as:

    ⇒  \(H_2In_(aq)\rightleftharpoons In^{2-} +2H^+\)

Answer:

Concentric circles

Explanation:

The energy levels are shown as concentric circles around the central nucleus, and the electrons are placed from the inside out. The first two electrons are found in the first energy level, and the third electron is found in the second energy level.

In each of the following situations, the intensity of the interaction differs for charged particles.

a. The distance between the charges increases. (decreases)

b. The size of the charge decreases. (increases)

a. The strength of the interaction between charged particles decreases as the distance between them increases. This is because the force between charged particles follows an inverse square law, which means that the force decreases with the square of the distance between the charges. Therefore, as the distance between the charges increases, the force between them decreases and the strength of the interaction decreases.

b. The strength of the interaction between charged particles increases as the size of the charge decreases. This is because the force between charged particles is directly proportional to the magnitude of the charge. Therefore, as the size of the charge decreases the force between the charged particles decreases and the strength of the interaction decreases.

Learn more about intensity of the interaction:

https://brainly.com/question/21272586

#SPJ11

Answer:

substances

Explanation:

A chemical reaction happens when substances break apart or combine to form one or more new substances.

^Hope it helps, Hazel^

Answer:

Explanation:

adbc

Answer:

sodium example salt and soy sauce

potassium example meat milk fresh fruits

fluorine, chlorine, bromine, and iodine,

The energy of the photons emitted by this laser is 1.96 eV.

The energy of the photons emitted by a helium-neon laser is determined by the energy difference between the two excited states in neon involved in the transitions. In this case, the energy difference between the two excited states is:

ΔE = E₂ - E₁ = (18.70 eV) - (20.66 eV) = -1.96 eV

where E₁ is the energy of the lower excited state and E₂ is the energy of the higher excited state.

Since the energy of a photon is given by:

E = hν

where h is Planck's constant and ν is the frequency of the photon, we can use the energy difference ΔE to find the frequency of the emitted photons:

ΔE = hν

ν = ΔE / h

Substituting the value of ΔE and Planck's constant:

ν = (-1.96 eV) / (4.136 × 10^-15 eV s) = 4.74 × 10^14 Hz

Finally, we can use the frequency of the emitted photons to find their energy:

E = hν = (4.136 × 10^-15 eV s) × (4.74 × 10^14 Hz) = 1.96 eV

Therefore, the energy of the photons emitted by a helium-neon laser with transitions between the two excited states in neon at 20.66 eV and 18.70 eV above ground is 1.96 eV.

To know more about energy of the photons   click on below link :

https://brainly.com/question/2393994#

#SPJ11

Answer:

it is option c liner eclipse

Answer:

A-It is a lunar eclipse, in which the Earth casts a shadow on the Moon.

Answer:

WHY DO YOU NEED HELP HUH

DON'T CHEAT READ AND STUDY

Explanation:

Answer:

It's C

Explanation:

The addition of water vapor to the system will not directly affect the amount of N₂ produced in the given reaction.

The balanced equation shows that the production of N₂ is determined by the stoichiometry of the reactants, namely 4 moles of ammonia (NH₃) reacting with 3 moles of oxygen (O₂) to produce 2 moles of nitrogen gas (N₂). The presence of water vapor (H₂O) does not participate in the reaction as a reactant or a product. Therefore, the amount of N₂ formed will remain the same regardless of the presence or addition of water vapor.

However, it is worth noting that the addition of water vapor may indirectly affect the reaction by altering the conditions or equilibrium of the system. For example, the presence of water vapor could influence the reaction kinetics, the temperature, or the concentration of reactants. These factors could potentially impact the rate of the reaction or the position of the equilibrium, which might have an indirect effect on the final amount of N₂ produced. But without specific information about the conditions and the influence of water vapor, it cannot be determined how the amount of N₂ will be affected in this particular scenario.

for more questions on water
https://brainly.com/question/19491767
#SPJ8

Answer:

Melting point

Explanation:

The temperature at which the solid and liquid forms of a pure substance can exist in equilibrium is called melting point. It can be also defined as the temperature at which a solid becomes a liquid at normal atmospheric pressure.

Answer:

by watching and writing down the information that is provided

Explanation:

The pressure of the gas in the bulb, given that height in the right arm is 100 mm and the left arm is 120 mm, is 740 mmHg (Option C)

From the question given above, the following data were obtained:

The pressure of the gas in the bulb can be obtained as shown below:

Pressure of gas = Atmospheric presure - Pressure due to difference in height

Pressure of gas = 760 - 20

Pressure of gas = 740 mmHg

Thus, we can conclude from the calculation made above that the pressure of the gas is 740 mmHg (Option C)

Learn more about pressure:

https://brainly.com/question/11742398

#SPJ1

Answer:

Unfortunately, keeping your money in a savings account can indeed result in lost money, if the interest rate does not even keep up with inflation. Still, overall, if you want to earn the most interest possible on your deposits, you should go with a money market or high-yield account over a traditional one.

The element that has the same number of valence electrons as krypton (Kr), but one less energy level, is bromine (Br).

Krypton is a noble gas located in Group 18 of the periodic table, and it has a full electron configuration with eight valence electrons in its outermost energy level. Bromine, on the other hand, is a halogen located in Group 17, and it has seven valence electrons in its outermost energy level.

Both krypton and bromine are in the same period (period 4) of the periodic table, but bromine has one less energy level, making it one row below krypton.

Learn more about krypton here:

https://brainly.com/question/18269514

#SPJ11

Answer:

17.136 g H2

Explanation:

First we need to convert moles of Zinc to moles of Hydrogen in order to find out how many moles of hydrogen are produced.

When we look at our balanced equation, we can see that for every mole of Zn reacting, there is 1 mol of H2 produced.  (imagine a 1 in front of the elements that have no numbers in front of them)

8.5 mol Zn * \(\frac{1 mol H_{2} }{1 mol Zn}\) = 8.5 mol H2

Now we will convert from moles of Hydrogen to grams

The atomic mass of H2 is 2(1.008) g/1 mol... so we will use this to convert to the number of grams of Hydrogen produced..

8.5 mol H2 * \(\frac{2(1.008)grams H2}{1 mol H2}\)  = 17.136 g H2

In a Grignard reagent reaction, the limiting reagent is the one that is entirely consumed, preventing more product formation.

The amount of product generated is directly proportional to the number of limiting reagents used in the reaction. When the reaction begins, the limiting reagent determines the reaction's extent. In this reaction, the limiting reagent can be calculated by comparing the amount of the reagent to the mole ratio. A limiting reagent, in general, is a reagent that runs out before the reaction is completed, resulting in a lesser product quantity.The limiting reagent of a reaction is the reactant that is fully consumed, which means it limits the amount of product formed.

The reactant that is not completely consumed is referred to as the excess reagent. The limiting reagent can be calculated using the stoichiometry of the reaction, which uses mole ratios to determine the theoretical yields. To determine the limiting reagent in a Grignard reagent reaction, the mole ratio of the reactants is used to determine which one is consumed first.

Learn more about reactant at:

https://brainly.com/question/30951553

#SPJ11

Answer:

Explanation:

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

\(density = \frac{mass}{volume} \\\)

From the question we have

\(density = \frac{2.06}{3.10} \\ = 0.664516..\)

We have the final answer as

Hope this helps you

The 315.00 grams of the glucose from the 0.278 M of the glucose solution, the volume of the solution needed is 6.25 L.

The mass of the glucose = 315 g

The molar mass of the glucose = 180.156 g/mol

The moles of the solution = mass / molar mass

The moles of the solution = 315 / 180.156

The moles of the solution = 1.74 mol

The molarity of the solution = 0.278 M

The molarity of the solution = moles / volume

The volume of the solution = moles / molarity

The volume of the solution = 1.74 / 0.278

The volume of the solution = 6.25 L.

To learn more about molarity here

https://brainly.com/question/31545539

#SPJ4

The estimated boiling point of water atop Denali mountain is approximately -267.46°C.

First, we convert the given atmospheric pressure from torr to atm:

657 torr / 760 torr/atm ≈ 0.865 atm

Next, we use the Clausius-Clapeyron equation to relate the boiling point of a substance to its vapor pressure:

                 ln(P₂/P₁) = (ΔH_vap/R) * (1/T₁ - 1/T₂)

where P₁ and T₁ are the reference pressure and boiling point, P₂ is the reduced pressure atop Denali (0.865 atm), ΔH_vap is the enthalpy of vaporization of water (40.7 kJ/mol), R is the ideal gas constant (0.0821 L·atm/(mol·K)), and T₂ is the boiling point we want to determine.

We can assume the reference boiling point of water at normal atmospheric pressure (1 atm) to be 100°C or 373 K.

Solving the equation for T₂:

ln(0.865/1) = (40.7 kJ/mol / (0.0821 L·atm/(mol·K))) * (1/373 - 1/T₂)

0.865 = 4.95 * (1/373 - 1/T₂)

1/T₂ = (0.865 / (4.95 * 0.865)) + 1/373

1/T₂ ≈ 0.173 + 0.00268

1/T₂ ≈ 0.17568

T₂ ≈ 1/0.17568

T₂ ≈ 5.69 K

Converting back to Celsius:

T₂ ≈ 5.69 - 273.15 ≈ -267.46°C

Learn more about boiling point here:

https://brainly.com/question/29233996

#SPJ11

Answer:

The combustion will release -3,321 KJ/mol of energy

Explanation:

What we need to do here is to first calculate the number of moles of methane burnt.

Mathematically, the number of moles of methane burnt = mass of methane/molar mass of methane

Molar mass of methane = 16g /mol

Thus the

number of moles will be ;

59.7/16 = 3.73 moles

Now, 1 mole of methane produces -890 KJ/mol if energy

Then the energy produced by by 3.73 moles of methane would be 3.73 * 890 = -3,320.8125

which is approximately -3,321 KJ/mol

Kindly note that the amount of heat is negative because it is an exothermic reaction

The process of adding a solid to a  liquid to make a mixture is called Dispersion. The mixture can be a solution or a suspension.

For the mixture to be totally in a state of equilibrium, the mixture has to be a solution, which means that the solid particles have fully dissolved in the liquid, otherwise known as a solvent.

Dispersions could result in different mixtures which are named according to how they appear. An example is a suspension, which appears to be partly dissolved in the liquid to form a semi-solid mixture.

Dispersions could also result in emulsions and colloids, all of which have large particles and are non-crystalline in nature.

learn more about mixtures here: https://brainly.com/question/1970755

#SPJ4

Answer:

Transform boundaries because they're sliding past each other.

I hope this helped!