Check the rate of evaporation in a wide mouthed container and narrow mouthed container. Note your observation during the peak of summer & the start of monsoon.​

The cosmic address would be as given below:

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems.

The Sun is a part of the Milky Way Galaxy.

The cosmic address indicating my address in the universe will be: Micky Michael , 120 White Bridge Road Nashville, Nashville, Tennessee , United state of America, Earth, Solar system, Milky way galaxy, Local galaxy, Virgo supercluster in that order.

In conclusion, a cosmic address is an address showing where one can be found in the universe.

Learn more about galaxies at:https://brainly.com/question/1587314

#SPJ1

I wrote, The platinum electrode is the cathode in this reaction. The tin electrode is the anode in this reaction. In the half reactions that occur the nitrate is reduced to nitric oxide(NO) while the tin electrode is oxidized to Sn2+.

Oxidation occurs at the tin half cell(anode) while reduction occurs at the nitrate half cell(cathode).

A galvanic cell refers to a cell that produces electrical energy spontaneously by redox reaction. Oxidation occurs at the anode while reduction occurs at the cathode in a galvanic cell.

The oxidation half equation at the anode occurs as follows;

3Sn(s) → 3Sn^2+(aq) + 6e

The reduction half equation that occurs at the cathode is;

2NO3–(aq) + 8H+(aq) + 6e→  2NO(g) + 4H2O(l)

We can see that electron loss occurs at the cathode while electron gain occurs at the anode as we can see in the equations above.

Learn more: https://brainly.com/question/13440572?

Answer:

305 seconds

Explanation:

Answer: just trust me its c

Explanation: i dont cap

The result suggests that the assumptions made in the calculation may not be valid, since the calculated yield is greater than 100%.

The balanced chemical equation for the synthesis of ammonia is:

N2 + 3H2 → 2NH3

From the given data, we can calculate the number of moles of nitrogen and hydrogen present in the reaction container:

n_N2 = m_N2 / M_N2 = 1.27 kg / 28.02 g/mol = 45.34 mol

n_H2 = m_H2 / M_H2 = 0.310 kg / 2.016 g/mol = 154.09 mol

We can assume that the reaction goes to completion, which means that all of the nitrogen and hydrogen react to form ammonia. According to the stoichiometry of the balanced equation, 3 moles of hydrogen react with 1 mole of nitrogen to form 2 moles of ammonia. Therefore, the total number of moles of ammonia formed is:

At equilibrium, the total number of moles of gas in the container remains constant. Therefore, the number of moles of unreacted nitrogen and hydrogen can be calculated as:

\(n_N2_unreacted = n_N2_initial - (1/3) * n_NH3 = 45.34 mol - (1/3) * 136.02 mol = 3.25 mol\\n_H2_unreacted = n_H2_initial - (1/3) * n_NH3 = 154.09 mol - (1/3) * 136.02 mol = 109.02 mol\)

The total number of moles of gas at equilibrium is:

\(n_total = n_N2_unreacted + n_H2_unreacted + n_NH3 = 3.25 mol + 109.02 mol + 136.02 mol = 248.29 mol\)

The mass of gas present at equilibrium can be calculated from the ideal gas law:

\(PV = nRTm_total = (n_total)(M_total) = (248.29 mol)(28.01 g/mol) = 6958.27 g\)

Therefore, the mass of gas present in the reaction mixture at equilibrium is 6958.27 g.

The percent yield of the reaction can be calculated as the actual amount of ammonia produced (136.02 mol) divided by the theoretical amount of ammonia that could have been produced based on the amount of nitrogen initially present (45.34 mol):

percent yield = (actual yield / theoretical yield) * 100

\(percent yield = (136.02 mol / 45.34 mol) * 100 = 300.3%\)

To know more about ammonia here

https://brainly.com/question/14854495

#SPJ4

Answer:

I think that a  pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample. Mixtures are physical combinations of two or more elements and/or compounds.

Explanation:

3D view of H3O+

The stronger line means that the Hydrogen is closer to us in a 3D view, meanwhile the line with traces, or you cal also see as a weaker line, it means that the Hydrogen is farther from us in a 3D view

Lewis Structure of H3O+

Answer: 4 atoms.

Explanation:

Answer:

Charles's law, or the law of volumes, was found in 1787 by Jacques Charles.

The mass of KClO₃ that was decomposed in the given reaction by the ideal gas equation is approximately 7.19 grams.

Given:

Pressure (P) = 0.964 atm

Volume (V) = 0.65 L

Temperature (T) = 22 °C = 22 + 273.15 = 295.15 K

The ideal gas law: PV = nRT

Where:

P = Pressure in atm

V = Volume in liters

n = Number of moles

R = Ideal gas constant = 0.0821 L·atm/(mol·K)

T = Temperature in Kelvin

n = (PV) / (RT)

n = (0.964 atm) × (0.65 L) / (0.0821 L·atm/(mol·K) × 295.15 K)

n ≈ 0.0294 mol

2 moles of KClO₃ produce 1 mole of O₂. Therefore, the number of moles of KClO₃decomposed would be:

Moles of KClO₃= 2 × 0.0294 mol

Moles of KClO₃≈ 0.0588 mol

Molar mass of KClO₃= 122.55 g/mol

Mass of KClO₃= Moles of KClO₃× Molar mass of KClO₃

Mass of KClO₃≈ 0.0588 mol × 122.55 g/mol

Mass of KClO₃≈ 7.19 grams

Learn more about ideal gas equation, here:

https://brainly.com/question/15379358

#SPJ1

A species which a conjugate base is NO₂⁻(aq).

So, the correct answer is D.

In the given reaction, the acid HNO₂ donates a proton to water to form the hydronium ion (H₃O⁺) and the nitrite ion (NO₂⁻).

A conjugate base is the species that remains after an acid loses a proton.

In this case, HNO₂ donates a proton, so it is the acid and its conjugate base is the NO₂⁻ ion.

Therefore, the answer is option D) NO₂⁻(aq) is the conjugate base in the given reaction.

Learn more about chemical reaction at

https://brainly.com/question/11314881

#SPJ11

Answer:

The ligand crosses the plasma membrane and binds to the receptor in the cytoplasm.

Answer:

The receptor then moves to the nucleus, where it binds DNA to regulate transcription.

Answer:

they both include a question, procedure and conclusion.

Explanation:

The formula of the compound is \($\mathrm{Cr}_{2} \mathrm{~S}_{3} \mathrm{O}_{12}$\)

Salmon colored powder = 2.65 g

Chromium = 0.70 g

Sulfur = 0.65 g

Oxygen = 1.30 g

Molar mass = 392.2

Molar mass = gram / moles

Molar mass of chromium

= 0.70 / 0.0135

= 52

Molar mass of salmon

= 0.65 / 0.0203

= 32.06

Molar mass of oxygen

= 1.30 / 0.0813

= 16

Molecular formula = 392.2 / (Cr + 3 S + 12 O)

                              = 392.2 / (52.00 + (3 x 32.06 + 12 x 16.00) ≈ 1

So, The formula of the compound is \($\mathrm{Cr}_{2} \mathrm{~S}_{3} \mathrm{O}_{12}$\)

Learn more about moles here:

https://brainly.com/question/14464650

#SPJ4

Answer:

A: sink

Explanation: If an object's density is:

GREATER than \(1gcm^{3}\), it will SINK in water.

LESS than \(1gcm^{3}\), it will FLOAT in water.

hope this helps

Answer:

Typical physical properties of metals :

high melting points.

good conductors of electricity.

good conductors of heat.

high density.

malleable.

ductile.

Explanation:

Answer:

-high melting points.

-good conductors of electricity.

-good conductors of heat.

-high density.

-malleable.

-ductile.

Explanation:

have a nice day

The decomposed mass of H₂O₂(aq) in beaker 2 is m1 - m2.

To calculate the mass of H₂O₂(aq) that decomposed in beaker 2 during the 60-second period, we need to find the difference in mass before and after the reaction.

Let's assume that the mass of beaker 2 with H₂O₂(aq) and MnO₂(s) at the start of the 60-second period is m1, and the mass at the end of the 60-second period is m2.

The mass of H₂O₂(aq) that decomposed can be calculated as:

Mass of H₂O₂(aq) decomposed = m1 - m2

Note that the mass of MnO₂(s) added (0.10g) does not affect the calculation since it remains unchanged throughout the reaction.

Since we don't have the actual mass values provided, you will need to refer to the recorded data or measurements from the experiment to calculate the mass of H₂O₂(aq) that decomposed in beaker 2.

Learn more about mass

brainly.com/question/14651380

#SPJ11

Answer:

Br2, CBr4, AsBr3, CaBr2. this is the increasing order of boiling point

The arrangement of given compound in the increasing order of normal boiling point is Br₂ < CBr₄ < AsBr₃ < CaBr₂.

Norma boiling point of any liquid is that point where the vapor pressure is equal to the standard sea level atmospheric pressure.

And boiling point is directly proportional to the strength of bond which is present between the atoms of any compound.

So, correct order will be Br₂ < CBr₄ < AsBr₃ < CaBr₂.

To know more about boiling point, visit the below link:
https://brainly.com/question/2125632

Answer:

(B) H2O + Baking soda

Explanation:

H2SO4 is commonly known as Sulfuric acid. It is a strong acid which can cause severe damage to body parts when comes in contact. If H2SO4 contacts the skin then it will be quite irritating for the skin so its better to apply water (H2O) with Baking soda.

Baking soda is of alkaline nature when it will react with H2SO4 it will undergo neutralization and the effect of the strong acid H2SO4 will be minimized.

The chemical reaction between baking soda and H2SO4 is

H2SO4(aq) + 2NaHCO3(aq) →  Na2SO4(aq) + 2CO2(g) + 2H2O(l)

Therefore the reaction is known as neutralization reaction. This aqueous baking soda reacting with Sulfuric acid neutralizes its effect and minimize its effect on the skin.

Answer:

False

Please rate brainliest

The ideal gas behavior is only observed when the gases have zero volume and no intermolecular forces among them. However, in reality, gases have a small volume and some weak intermolecular forces. The behaviour of the gases is more non-ideal under certain conditions.

Out of the given options, the following will increase the non-ideal behavior of gases are increasing the system volume, increasing the system temperature and increasing the number of gas molecules. Therefore, the correct options are (II), (III) and (IV). When the gas particles come closer to each other, the intermolecular forces between them start to become important, and the gas no longer obeys the ideal gas laws. The ideal gas law is described as PV=nRT, where P is pressure, V is volume, n is the number of molecules, R is the universal gas constant, and T is temperature. Ideal gases have high temperature and low pressure. Ideal gas behavior is observed when the volume is high, the temperature is high, and pressure is low, whereas non-ideal behavior is observed when the volume is low, temperature is low, and pressure is high.

Learn more about ideal gas laws. here ;

https://brainly.com/question/6534096

#SPJ11

Answer:

wire battery and maybe something to use that power but a simple circuit is just electricity coning from the source and going back after powering something sorry if this is a little lacking

The required moles of nitrogen which are needed to completely convert 6.34 moles of hydrogen is 2.11 moles.

Stoichiometry of any reaction gives idea about the relative amount of reactants and products are present in any chemical reaction in terms of moles.

Given chemical reaction is:

N₂ + 3H₂ → 2NH₃

From the stoichiometry of the reaction:

3 moles of H₂ = reacts with 1 mole of N₂

6.34 moles of H₂ = reacts with 1/3×6.34=2.11 moles of N₂

Hence required moles of nitrogen are 2.11.

To know more about stoichiometry, visit the below link:

https://brainly.com/question/16060199

A)  The theoretical yield of phosphorus pentachloride(POCl3) is 406.0 grams.

The balanced molecular equation:

P4O10 (s) + 10 PCl5 (s) → 10 POCl3 (l) + 4 PCl3 (g)

To determine the theoretical yield of phosphorus oxychloride (POCl3), we first need to calculate the limiting reactant:

Molar mass of P4O10 = 4(31.0) + 10(16.0) = 284.0 g/mol

Molar mass of PCl5 = 5(35.5) + 1(30.97) = 208.2 g/mol

n(P4O10) = 75.00 g / 284.0 g/mol = 0.264 mols

n(PCl5) = 225.0 g / 208.2 g/mol = 1.081 mols

From the balanced equation, we can see that 1 mol of P4O10 reacts with 10 mols of PCl5 to produce 10 mols of POCl3. Therefore, P4O10 is the limiting reactant as it only produces 2.64 mols of POCl3 while PCl5 can produce 10.81 mols of POCl3.

The theoretical yield of POCl3 is calculated as:

n(POCl3) = n(P4O10) × 10 = 0.264 mol × 10 = 2.64 mol

Mass of POCl3 = n(POCl3) × Molar mass of POCl3

= 2.64 mol × 153.82 g/mol

= 406.0 g

Therefore, the theoretical yield of POCl3 is 406.0 grams.

B)  170.1 grams of excess PCl5 will remain after the reaction.

To determine the mass of the excess reactant that remains, we need to calculate the amount of PCl5 that reacts with P4O10, and then subtract it from the initial amount of PCl5:

n(PCl5) reacted = n(POCl3) produced / 10 = 2.64 mol / 10 = 0.264 mol

n(PCl5) remaining = n(PCl5) initial - n(PCl5) reacted

= 1.081 mol - 0.264 mol

= 0.817 mol

Mass of excess PCl5 remaining = n(PCl5) remaining × Molar mass of PCl5

= 0.817 mol × 208.2 g/mol

= 170.1 g

Therefore, 170.1 grams of excess PCl5 will remain after the reaction.

C) the percent yield of POCl3 is 2.43%.

The percent yield can be calculated using the actual yield and theoretical yield of the reaction:

Actual yield = 5.74 g

Theoretical yield of POCl3 = 15.33 g PCl5 × (1 mol POCl3 / 1 mol PCl5) × (153.82 g POCl3 / 1 mol POCl3) = 235.7 g

Percent yield = (Actual yield / Theoretical yield) × 100%

= (5.74 g / 235.7 g) × 100%

= 2.43%

Therefore, the percent yield of POCl3 is 2.43%.

To know more about yield, visit:

https://brainly.com/question/2506978

#SPJ1

Answer:

The initial volume of the balloon is 3.41 L.

Explanation:

The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature, and moles.

As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:

"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:

P1 * V1 = P2 * V2

In this case:

Replacing:

0.53 atm* V1= 0.42 atm* 4.3 L

Solving:

\(V1=\frac{0.42 atm* 4.3 L}{0.53 atm}\)

V1= 3.41 L

The initial volume of the balloon is 3.41 L.

The mass of the tiny bubble of dry air containing 78% N₂ and 22 % O₂ is 28.88 g/mol.

The molecular masses of  N₂  and O₂  are 28 g/mol and 32 g/mol respectively.

Tiny bubbles found in dry air is the air inside a solid, liquid or surrounded by a colloid within a fluidic environment.

The approximate molecular mass of dry air is calculated as

=  [molecular mass of  N₂ × mass percentage of  N₂] +  [molecular mass of  O₂× mass percentage of  O₂] / mass percent of  N₂ + mass percent of   O₂

=[28×78]+[32×22]/78 +22

=28.88 g/mol

To know more about molecular mass here

https://brainly.com/question/30214238

#SPJ4

​

The concentration, in m/v percent, of a solution prepared from 50. g nacl and 2.5 l of water is 2 %.

The mass/volume percent is the ratio of a solution's total volume to the mass of the solute that makes up that solution. Since this type of concentration has been expressed as a percentage, the given proportion should be multiplied by 100.

The calculation if concentration is shown as:

It can be calculate as follows:

% NaCl = Mass of NaCl / Total mass × 100 %

% NaCl = 50 gram / 2500 × 100 %

%  NaCl = 2 %.

As a result, the solution made from 50 g of nacl and 2.5 l of water will have a 2% concentration.

To know more about concentration

brainly.com/question/10695134

#SPJ4