A sample of hydrogen has an initial temperature of 122.0 °F. When the temperature is lowered to -23.0 °F, the volume of hydrogen becomes 212 cm3. What was the initial volume of the hydrogen?

Answer:

THE NAME OF THE ACID WITH FORMULA HCIO IS HYPOCHLOROUS ACID

Answer: 1:1

Explanation:

Since Na trades place with Na it makes it 1:1

Answer:

The answer is 4.80 x 1014s-1b

Explanation:

625 nm x 10-9m= 6.25 x 10-7 m = c = 2.998 x 108m/s1 nm 6.25 x 10-7m=4.80 x 1014s-1b.)

The frequency of visible light is equal to 4.8 ×10¹⁴s⁻¹.

Frequency can be described as the number of oscillations of a wave in a time of one second. The frequency of the wave or light has S.I. units which are per second (s⁻¹) or hertz.

Wavelength can be defined as the distance between the two adjacent points of a wave in the phase with each other. Two adjacent crests or adjacents troughs on a wave are separated by a distance is called wavelength.

The relationship between the speed of light, frequency, and wavelength is:

c = νλ

Given, the wavelength of the light, λ = 625nm = 625 × 10⁻⁹ m

Then we know that the speed of light, c = 3 × 10⁸ ms⁻¹

The frequency of the light can be calculated from the above-mentioned equation:

The frequency of the given visible light will be equal to:

ν = c/λ = 3× 10⁸ ms⁻¹/625 × 10⁻⁹ m = 4.8 ×10¹⁴ Hz

Therefore, the frequency of visible light is equal to 4.8 ×10¹⁴ Hz.

Learn more about wavelength and frequency, here:

brainly.com/question/18651058

#SPJ2

It is an amine, and it has less polar nitrogen-hydrogen and oxygen-hydrogen bonds.

A compound's boiling point is a physical characteristic. These intramolecular linkages between the molecules that make up a chemical affect these physical characteristics.

Alcohols and amino acids have the same kind of intermolecular linkages. The hydrogen bond is the name of this kind of bond.

The electrical attraction between a hydrogen atom from one molecule and an electronegative atom from a nearby molecule is known as a hydrogen bond.

The strength of the bond is in the following order: H.....F > H.....O > H......N

The H....N hydrogen bonds exist in amines, whereas the H....O hydrogen bonds exist in alcohols.

Consequently, the alcohol's hydrogen bonds are stronger and it will impart a higher boiling point on the compound.

Learn more about hydrogen bonds here-

https://brainly.com/question/10904296

#SPJ9

Answer:uses world like

Explanation:

The temperature of the gas is 0.49 K.

An ideal gas is a theoretical gas composed of many randomly transferring factor particles that aren't difficult to interparticle interactions. the best gasoline idea is beneficial because it obeys the precise gas law, a simplified equation of country, and is amenable to evaluation under statistical mechanics.

Volume is a degree of occupied three-dimensional space. it's far more frequently quantified numerically the usage of SI-derived gadgets or by way of diverse imperial gadgets. The definition of length is interrelated with the extent.

An ideal gas is described as one for which both the extent of molecules and forces between the molecules are so small that they have got no effect at the behavior of the gas. The real gas that acts almost like a really perfect gasoline is helium. that is due to the fact helium, in contrast to maximum gases, exists as an unmarried atom, which makes the van der Waals dispersion forces as low as viable

Using the ideal gas equation:-

Given;

P₁ = 387 torr = 0.509211 atm

V₁ =  2 L

mole n = 0.25 mol

T = ?

R = 8.314

PV = nRT

T = PV /nR

   = 0.509211 × 2 / 0.25 × 8.314

   = 0.49 K

Learn more about ideal gas here:-https://brainly.com/question/20348074

#SPJ1

The Ksp of SrCO3 is obtained as 1.6 * 10^-9.

The kind of salt used and the temperature of the solution both affect Ksp's value. It offers details on the maximum quantity of salt that can dissolve in the solvent under a specific set of circumstances.

A solution is referred to as supersaturated and the excess ions may precipitate out of solution if the concentration of the ions in it exceeds the value of Ksp.

We know that the Ksp for the SrCO3(s) can be obtained from;

Ksp = [Sr^2+] [CO3^2-]

Ksp = x^2

But  [Sr^2+] = [CO3^2-] = 4 * 10^-5 M = x

Thus;

Ksp = (4 * 10^-5)^2

= 1.6 * 10^-9

Learn more about Ksp:https://brainly.com/question/27132799

#SPJ1

Answer:

an increase in temperature

Explanation:

The chemical reaction that is produced by modelage masks causes: an increase in temperature

Answer:

The human body needs both saturated fats and unsaturated fats to remain healthy. Most dietary recommendations suggest that, of the daily intake of fat, a higher proportion should be from unsaturated fats, as they are thought to promote good cholesterol and help prevent cardiovascular disease, whereas an overabundance of saturated fats is thought to promote bad cholesterol.

Explanation:

For 3.50 grams of an unknown metal was placed in a graduate cylinder containing 50.0mL water initially,  the density of this unknown meta  is mathematically given as

D= 0.23 g/ml

Generally, the equation for the Volume of water  is mathematically given as

Vw= Volume of water after metal addition - Volume of water initial

Therefore

Vw = 65 ml - 50 ml

Vw= 15 ml

In conclusion,

D= Mass of metal / Volume

D= 3.5 / 15

D= 0.23 g/ml

Read more about mass

https://brainly.com/question/15959704

The total number of atoms in 3.75 mol of ammonium nitrate, NH4NO3, is equal to the Avogadro's number, which is 6.022 x 10^23, times the number of moles, which is 3.75 in this case.

Thus, the total number of atoms in 3.75 mol of ammonium nitrate is equal to 2.26 x 10^24 atoms.

This number can be further broken down into the number of atoms of each element present in the compound. Ammonium nitrate is composed of two elements, nitrogen (N) and hydrogen (H). For each mole of ammonium nitrate, there are 4 moles of hydrogen atoms and 2 moles of nitrogen atoms.

Therefore, in 3.75 moles of ammonium nitrate, there are 15 moles of hydrogen atoms and 7.5 moles of nitrogen atoms, which is equal to 9 x 10^24 hydrogen atoms and 4.05 x 10^24 nitrogen atoms.

Learn more about ammonium nitrate at:

https://brainly.com/question/5148461

#SPJ1

Answer:

The inside of the Earth is too hot to hold a solid magnet therefore, there is liquid metals within the mantle and deeper. These metals flow around causing volcanic eruptions, earthquakes, and Earth's magnetic field.

Explanation:

Answer:

D

Explanation:

Copper has a more positive reduction potential than Hydrogen and is below Hydrogen in the reactivity series. So it can't displace H+ from diluted acids. Therefore Cu doesn't form Cu salt and a gas

Fe, Zn and Mg are above Hydrogen in the electrochemical series and can displace Hydrogen as follows

Fe(s) + 2HCl(aq) ----> FeCl2 +H2 (g)

Mg(s) + 2HCl(aq) ----> MgCl2 (aq) +H2 (g)

So iii is wrong

Zn(s) +2HCl(aq) ----> ZnCl2(aq) +H2 (g)

The correct answer is B. 8 molecules \(SO_3\). Option B

In the given reaction:

S(s) + \(O_2\)(g) → \(SO_3\)(g)

The stoichiometric coefficient in front of the \(SO_3\)molecule is 8, which indicates that 8 molecules of \(SO_3\)are formed as a product. This coefficient represents the ratio of the number of molecules involved in the reaction.

Option A (8 atoms \(SO_3\)) is incorrect because it only mentions the number of atoms, not molecules. The stoichiometric coefficient does not represent the number of atoms, but rather the number of molecules.

Option C (80.07g \(SO_3\)) is incorrect because it mentions a specific mass. The stoichiometric coefficient does not directly represent the mass of the substance, but rather the relative amount of molecules involved in the reaction.

Option D (32 \(SO_3\)) is incorrect because it mentions a specific volume. The stoichiometric coefficient does not directly represent the volume of the substance, but rather the relative amount of molecules involved in the reaction.

Therefore, the correct way to describe the \(SO_3\)component in the reaction is option B: 8 molecules \(SO_3\). This represents the ratio of the number of molecules of \(SO_3\)that are produced in the reaction.

Option B

For more wsuch question on   molecules visit:

https://brainly.com/question/475709

#SPJ8

Answer

Based on Le Chatelier's principle, the buffering capacity of a buffer that has already neutralized a significant acid amount can be replenished if the concentration of the base is increased. This will allow the base's OH- ions to neutralize further of the acid's H+ ions.

Explanation

Le Chatelier's principle states that if the equilibrium of a chemical reaction is disturbed by changing the conditions such as pressure, temperature, or concentration of products or reactants, the position of equilibrium shifts to counteract the change to re-establish the equilibrium.

Applying this principle to a buffer that has already neutralized a significant amount of acid, we should increase the base's concentration to re-establish the equilibrium. That will allow OH- ions of the base to neutralize further H+ ions of the acid.

Answer: Convection

Explanation: Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid. Air in the atmosphere acts as a fluid.

The concentration of H₂SO₃ solution is equal to 0.123 M.

A neutralization reaction is described as a reaction in which an acid and base react to form salt and water. When a strong acid will react with a base then the salt which is formed can be neither acidic nor basic.

When H₂SO₃ (a strong acid) reacts with KOH, the resulting salt is K₂SO₃  and water.

H₂SO₃  +  2KOH   →   K₂SO₃  +   2H₂O

Given, the concentration of KOH = 0.235 M

The volume of the KOH = 65.25 ml = 0.06525 L

The number of moles of KOH, n = M × V = 0.235 × 0.06525 = 0.0153 M

The volume of the  H₂SO₃ = 62.4 ml = 0.0624 L

The number of moles of  H₂SO₃, n = 0.0153/2 = 0.00767 mol

The concentration of H₂SO₃ =0.00767/0.0624 = 0.123 M

Therefore, the molarity of  H₂SO₃ is 0.123 M.

Learn more about neutralization reaction, here:

brainly.com/question/20038776

#SPJ1

Answer:

to protect it from harm

Explanation:

Answer:

The atomic size decreases with an increase in atomic number when we move from left to right.

Explanation: Hope it helps you:))))))

                      Have a great day.

The forensic scientific method is a modified version of the scientific method that contrasts observable physical discoveries found at the crime scene, in the crime lab, or in the autopsy room with anamnestic evidence gathered by investigators.

To learn more about forensic investigation visit:

https://brainly.com/question/13073221

#SPJ10

Answer:

2.282 atm

P1V1/T1 = P2V2/T2

2.70atm / (50+273) = X/ 273

make x subject of formula

:. X = 2.28 atm

or 2.28 * 1.01 *10⁵ N/m²

you can support by rating brainly it's very much appreciated ✅✅

The amount of heat required to convert 5.6 g of the compound from a liquid at 30.0 °C to a gas at 60.5 °C is approximately 1.183 kJ.

To calculate the amount of heat required to convert 5.6 g of the compound from a liquid at 30.0 °C to a gas at 60.5 °C, we need to consider the heat required for temperature change and the heat of vaporization.

First, let's calculate the heat required for the temperature change from 30.0 °C to the boiling point of 47.6 °C in the liquid state:

q1 = mass * specific heat * temperature change

= 5.6 g * 0.91 J/g-K * (47.6 °C - 30.0 °C)

= 81.23 J

Next, let's calculate the heat required for the phase change from liquid to gas:

q2 = heat of vaporization * number of moles

= 27.5 kJ/mol * (5.6 g / molar mass)

= 27.5 kJ/mol * (5.6 g / 146.39 g/mol)

= 1.051 kJ

Finally, let's calculate the heat required for the temperature change from the boiling point to 60.5 °C in the gas state:

q3 = mass * specific heat * temperature change

= 5.6 g * 0.67 J/g-K * (60.5 °C - 47.6 °C)

= 51.02 J

The total amount of heat required is the sum of q1, q2, and q3:

q_total = q1 + q2 + q3

= 81.23 J + 1.051 kJ + 51.02 J

= 1.132 kJ + 51.02 J

= 1.183 kJ

For more such questions on compound

https://brainly.com/question/15929599

#SPJ8

A 5-kg object experiences the greatest gravitational force at sea level. The correct option is D.

The term force has a particular definition in science. At this standard, it is perfectly acceptable to refer to a force as both a push and maybe a pull. A force is not one that an object possesses or possesses. Another object applies a force to another. The concept of a force is not restricted to living or non-living things.

What exactly is balanced force?

Balance occurs when the forces applied have similar strengths & act in opposite directions. These forces cancel each other out, and the movements of the object on which they act remain unchanged. The correct option is D.

To know more about force visit :

brainly.com/question/24115409

#SPJ1

Answer;      

need more info.........

Explanation:

Answer:

True

Explanation:

Burning waste can lead to air pollution and release of greenhouse gases. Carbon dioxide is one of those gases.

Answer:

Using atomic spectra selection rules for electronic excitations, determine the electron configurations and their associated term symbols for the two lowest-lying electronic excited states for a hydrogen atom. (Starting from the ground electronic state, determine what the two lowest energy electronic excitations are possible.) Indicate which will have the lower energy.

Explanation:

Using atomic spectra selection rules for electronic excitations, determine the electron configurations and their associated term symbols for the two lowest-lying electronic excited states for a hydrogen atom. (Starting from the ground electronic state, determine what the two lowest energy electronic excitations are possible.) Indicate which will have the lower energy.

Answer:

5.50 moles of magnesium oxide is 221.6742 grams

Explanation:

to do this you multiply the number of moles by the molar mass