What is the median number of seeds that germinate at 24*C

The final temperature of the gas is approximately 40.96 Kelvin.

To determine the final temperature of the gas, we can use the ideal gas law, which states:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles of the gas, R is the ideal gas constant, and T is the temperature in Kelvin.

First, let's convert the given temperatures to Kelvin. We have:

Initial temperature: -125 degrees Celsius = 148 K (approximate)

Final temperature: Unknown

The initial conditions of the gas are as follows:

Initial pressure (P1) = 1.25 atm

Initial volume (V1) = 1250 mL = 1.25 L (since 1 L = 1000 mL)

Initial temperature (T1) = 148 K

The final conditions of the gas are as follows:

Final pressure (P2) = 50.0 atm

Final volume (V2) = 325 mL = 0.325 L

Final temperature (T2) = Unknown

Using the ideal gas law, we can set up the following equation:

(P1 * V1) / T1 = (P2 * V2) / T2

Substituting the known values:

(1.25 atm * 1.25 L) / 148 K = (50.0 atm * 0.325 L) / T2

Simplifying the equation:

T2 = (50.0 atm * 0.325 L * 148 K) / (1.25 atm * 1.25 L)

T2 = 40.96 K

For more such questions on temperature visit;'

https://brainly.com/question/4735135

#SPJ8

Answer:

False

Bouyant force = volume of displaced fluid * density of fluid

Answer:

0.001 mole of NaF.

Explanation:

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

Volume of solution = 100 mL

Molarity = 0.01 M

Mole of NaF =?

Next, we shall convert 100 mL to litre (L). This can be obtained as follow:

1000 mL = 1 L

Therefore,

100 mL = 100 mL × 1 L / 1000 ml

100 mL = 0.1 L

Thus, 100 mL is equivalent to 0.1 L.

Finally, we shall determine the number of mole of NaF present in the solution. This can be obtained as follow:

Volume of solution = 0.1 L

Molarity = 0.01 M

Mole of NaF =?

Molarity =mole /Volume

0.01 = mole of NaF / 0.1

Cross multiply

Mole of NaF = 0.01 × 0.1

Mole of NaF = 0.001 mole.

Thus, 0.001 mole of NaF is present in 100 mL of the solution.

a) HCP and FCC are two examples of close-packed structures in 2D. b) The common symmetry elements in both structures are mirror plane symmetry and rotation axis symmetry. c) The HCP structure has a screw axis symmetry, while the FCC structure has a glide plane symmetry.

a) Two examples of close-packed structures in 2D are the hexagonal close-packed (HCP) and the face-centered cubic (FCC) structures. The HCP structure consists of hexagonally arranged layers, while the FCC structure consists of cubic close-packed layers.

b) Two symmetry elements that are common to both HCP and FCC structures are the mirror plane symmetry (reflection symmetry) and the rotation axis symmetry (3-fold rotational symmetry).

c) Two symmetry elements present in one structure but not the other are:

The screw axis symmetry is present in the HCP structure but not in the FCC structure. It represents a rotational symmetry combined with a translation along the axis.

The glide plane symmetry is present in the FCC structure but not in the HCP structure. It represents a reflection symmetry combined with a translation parallel to the plane.

Learn more about rotation axis  from the given link:

https://brainly.com/question/33181388

#SPJ11

The number of moles of air present is 0.056 mole

The ideal gas is one in which molecules do not attract or repel each other.Many gases like oxygen,nitrogen, carbon di oxide can be treated as the ideal gases as particular temperature and pressure.The real gases at high temperature and lower pressure can be treated as ideal gases.

The given data in the question is

Volume = 1.35 L

Pressure (P) = 750 torr

Temperature (T) = 17 °C = 17 + 273 = 290 K

Gas constant (R) = 62.396 L•torr/mol•K

The number of moles (n) =?

How to determine the number of moles:

The number of moles present can be obtained by using the ideal gas equation as illustrated below:

\(PV=nRT\)

Divide both sides by RT

\(n=\dfrac{PV}{RT}\)

\(n=\dfrac{(750\times 1.350}{62.396\times 290)}\)

\(n=0.056\ moles\)

Hence, the number of moles of air present is 0.056 mole

To learn more about the ideal gas equation follow

brainly.com/question/4147359

Answer:

answer in picture

Explanation:

Step 1

% by mass:

Mass of solute ---- 100 of solution

Mass of solution = mass of solute + mass of solvent = 55.0 g + 137 g = 192 g

Solute = NH4Cl

Solvent = Water (H2O)

-----------------------------

Step 2

Procedure:

55.0 g NH4Cl --------- 192 g solution

X ---------- 100 g solution

X = 29 g NH4Cl = 29 % by mass approx.

Answer: 29 % by mass

A separatory funnel contains ethyl acetate and an aqueous solution of some kind. The methylene compound is found at the bottom.

What is a separatory funnel?

A separatory funnel is a laboratory equipment used for extraction and is also called separating funnel as well as separation funnel.

Commonly, it is used in liquid-liquid extraction process in  order to isolate the components of a certain mixture.

In general, in a separatory funnel two immiscible liquids are present having different densities. The liquid with greater density resides at the bottom while liquid having lower density floats on the top.

In our case, methylene compound is expected to be found at the bottom because it density id higher than the ethyl acetate  compound.

If you need to learn more about separatory funnel click here:

https://brainly.com/question/28826140

#SPJ4

It would take a banana slug approximately 1,029,863 minutes to run a complete marathon, which is equivalent to about 17,164 hours or approximately 714 days.

To determine the length of time it would take for a banana slug to run a complete marathon of 26.2 miles, use the given information and conversion factors:

Given:

Slug Travel Rate: 0.0229 mm/s

Conversion Factors:

1 mile = 5280 feet

1 foot = 12 inches

1 inch = 2.54 cm

1 cm = 10 mm

1 second = 1 s

Now set up the conversions to cancel out the units and find the time:

26.2 miles × (5280 feet/1 mile) × (12 inches/1 foot) × (2.54 cm/1 inch) × (10 mm/1 cm) × (1 s/0.0229 mm) = X seconds

Calculating this value:

X = (26.2 × 5280 × 12 × 2.54 × 10) / (0.0229)

X ≈ 61,791,789.68 seconds

Now convert seconds to a time unit that has a value between 1 and 100. Let's choose minutes:

61,791,789.68 seconds × (1 min / 60 seconds) = Y minutes

Y ≈ 1,029,863.16 minutes

So, it would take a banana slug approximately 1,029,863 minutes to run a complete marathon, which is equivalent to about 1,029,863/60 ≈ 17,164 hours or approximately 714 days.

Find out more on conversion factors here: https://brainly.com/question/97386

#SPJ1

Answer:

the time taken for the radioactivity of a specified isotope to fall to half its original value.

Explanation:

Answer: 171°F (77°C) 

Explanation: Sanitizing for at least 30 seconds helps pH increases while chlorine becomes less effective as a sanitizer.

The average rate of the reaction in mol CH3CHO produced/L times s is approximately 0.00047 mol/(L.s).

The question requires us to determine the average rate of the reaction in mol CH3CHO produced/L times s. We are given the concentration of CH3CHO which changes from 0.0300 mol/L to 0.0500 mol/L in 42.5 seconds.To calculate the average rate of the reaction, we can use the following formula:Average rate of reaction = Change in concentration of reactant or product/Time intervalFor the given reaction, the increase in concentration of CH3CHO is (0.0500 mol/L - 0.0300 mol/L) = 0.0200 mol/LThe time interval is given as 42.5 seconds.

Substituting these values in the formula, we get : Average rate of reaction = (0.0200 mol/L)/(42.5 seconds)≈ 0.00047 mol/(L.s) This means that for every second, 0.00047 moles of CH3CHO are produced per litre of solution.

for such more questions on reaction

https://brainly.com/question/24795637

#SPJ8

Answer:

A mixture of molecules is a group of molecules in which there are multiple different elements and atoms, that are in either fixed proportions or random. There are heterogeneous and homogenous mixtures.

Explanation:

Answer:

KOH + H2SO4 --> K2SO4 + H2O

An oil sample should be taken for which of the following reasons:- To know the current condition of the engine- To understand the contamination level of the oil- To detect wear metals and other impurities- To confirm if oil needs changing- To ensure that oil is still suitable for use- To understand if there is a malfunctioning of the engine.

There are many reasons for taking oil samples, but these are the most common reasons. Oil sampling is a process that involves taking samples of the oil to test it in the laboratory and evaluate its condition and performance. It is a powerful tool for monitoring the overall health of an engine, and it can help diagnose problems before they become serious and lead to downtime and costly repairs.

Learn more about oil:

https://brainly.com/question/14281081

#SPJ11

Answer:

false

Explanation:

Answer:

4

Explanation:

Answer:

B.

Explanation:

I don't know much about this subject, but it seems that a wave is when the line is above the line in the middle.

The question is incomplete; the complete question is;

Which pair of properties describes the elements in Group 18?

They are chemically stable and liquid at room temperature.

They have eight valence electrons and are flammable.

They are magnetic and boil at low temperatures.

They are gaseous at room temperature and chemically stable.

Answer:

They are gaseous at room temperature and chemically stable.

Explanation:

The group 18 elements are generally called the noble gases or the inert gases. This is because they are mostly monoatomic gases with a high degree of chemical stability.

Recall that group 18 elements already have eight electrons in their outermost shell so they are very stable as a result of a complete octet. They do not easily participate in chemical reactions because of their chemical inertness.

Answer:

CH³–C=CH——CH³–CH=CH²

Explanation:

THIS IS PROPYNE TO PROPENE

we find the energy to be approximately \(3.41 * 10^-19\) Joules is the answer.

To calculate the wavelength of a photon with a frequency of 61.7 MHz, we can use the formula: wavelength = speed of light / frequency. The speed of light is approximately\(3 * 10^8\) meters per second.

Converting the frequency to Hz (\(1 MHz = 10^6 Hz\)), we have \(61.7 * 10^6\)Hz.

Plugging these values into the formula, we get: wavelength =\((3 * 10^8 m/s) / (61.7 * 10^6 Hz).\)

Simplifying, we find the wavelength to be approximately 4.862 meters.

Now, to calculate the energy of a photon with a wavelength of 582.8 nm, we can use the equation: energy = Planck's constant × speed of light / wavelength.

Planck's constant is approximately \(6.63 * 10^-34\) Joule-seconds.

Converting the wavelength to meters (\(1 nm = 10^-9 m\)), we have \(582.8 * 10^-9 m.\)

Plugging these values into the equation, we get: energy =\((6.63 * 10^-34J·s) * (3 * 10^8 m/s) / (582.8 * 10^-9 m).\)

Simplifying, we find the energy to be approximately \(3.41 * 10^-19\) Joules.

know more about wavelength

https://brainly.com/question/31143857

#SPJ11

Ions are  linked by the electrical charge present on them. Which is  moreover negative(-) or positive(+).

The  motes or  tittles which have lost or gained electrons are called ions. The in the imbalance between the number of protons and the neutrons.

Tittles or  motes which loose electrons come  appreciatively charged called cations and  tittles or  motes which gain electrons come negatively charged called anions.  

It's  pivotal to identify ions to understand the chemical  responses and the  conformation of  composites, because the charge present on them determines its  geste.

Also by counting the number of protons and electrons we can determine the charge on the ion.    

To learn  further about Ions:

https//brainly.com/question/13692734

Answer:

The formula is Na2C2O4

Explanation:

I hope this helps

At STP, a mole of pure gas is closest in size to a marble. As a tiny, solid material, a gram of gas at the STP is considerably smaller than a marble. D is the correct response.

At Standard Pressure and Temperature, 22.4 L of any gas will be required to hold 1 mole (STP). The Ideal Gas Law and a balanced chemical equation can be used to determine the amount or mass of gas consumed or created in a chemical process. In other words, the gas that has the greatest number of molecules of a certain gas at a given temperature will occupy the largest volume.

Learn more about STP

brainly.com/question/29356493

#SPJ4

Question: From the following items, which is closest in size to one mole of gas at STP?

A) A car

B) An elephant

C) A microwave

D) A marble

The mole fraction of N₂ in the mixture, given the data is 0.225

Density = mass / volume

Cross multiply

Mass = Density × volume

Mass of mixture = 2.063 × 22.4

Mass of mixture = 46.2112 g

We'll begin by calculating the mole of N₂ in the mixture. This can be obtained as follow:

Total mole = Mole of N₂ + Mole of Cl₂ + Mole of O₂

1 = x + y + y

1 = x + 2y

2y = 1 - x

y = (1 - x) / 2

Mass of mixture = mass of N₂ + mass of Cl₂ + mass of O₂

Recall

mass = mole × molar mass

Thus,

Mass of mixture = (mole of N₂ × molar mass) + (mole of Cl₂ × molar mass) + (mole of O₂ × molar mass)

46.2112 = 28x + 71y + 32y

But

y = (1 - x) / 2

46.2112 = 28x + 71(1 - x) / 2 + 32(1 - x) / 2

Multiply through by 2

92.4224 = 56x + 71(1 - x) + 32(1 - x)

92.4224 = 56x + 71 - 71x + 32 - 32x

Collect like terms

92.4224 - 71 - 32 = 56x - 71x - 32x

-10.5776 = -47x

Divide both sides by -47

x = -10.5776 / -47

x = 0.225 mole

Finally, we can determine the mole fraction of N₂. This can be obtained as follow:

Mole fraction = mole / total mole

Mole fraction of N₂ = 0.225 / 1

Mole fraction of N₂ = 0.225

Learn more about mole fraction:

https://brainly.com/question/2769009

#SPJ1

Answer:

10 grams

Explanation:

edge 2021

Answer:

118

Explanation:

The discovery of the 118 chemical element known to exist us of 2021

When water particles in their gaseous state lose enough energy, the gaseous state of water converts to the liquid state as the kinetic energy of particles decreases.

In the gaseous state, water molecules have higher kinetic energy compared to the liquid state. When water particles lose energy, typically through cooling or condensation, their kinetic energy decreases. As a result, the water molecules slow down and come closer together, forming intermolecular forces that enable them to condense into the liquid state.

This phase transition occurs when the average kinetic energy of the water particles decreases below a certain threshold, allowing them to transition from the highly mobile and energetic gaseous state to the more ordered and cohesive liquid state.

To learn more about kinetic energy, Visit:

https://brainly.com/question/8101588

#SPJ11

The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.

The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):

E = V * Q

Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):

Q = E / V

Substituting the given values, we have:

Q = 64 MJ / 330 V

To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:

Q = (64 * 10^6 J) / 330 V

Calculating the division:

Q ≈ 193,939.39 Coulombs

Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.

For more such questions on charge visit:

https://brainly.com/question/18102056

#SPJ8

Answer:

The answer is titanium.

Explanation:

Titanium (element 22) shares the same group - or column - as element 72, so they will have more properties in common.

Answer:

1.3 M

Explanation:

The formula mass of lithium fluoride is 7+19=26 g/mol. This means that in 52 grams of LiF, there is 2 moles.

Molarity = (moles of solute)/(liters of solution), so the answer is 2/1.5 = 1.3 M