Calculate experimental error using the following data: the measured value equals 1.4 cm; the accepted value equals 1.2 cm.
a) -14.3%
b) 4.3%
c) -16.7%
d) 16.7%

You just need to calculate the following to go from kg/hour to kmol/s: For instance, 1 kmol/h should represent 36 kg with 1 kg/s should equal 1/36 kmol/h if there was 3 kmol in 1 kilogram and 12 seconds in 1 hour.

1000 moles make up one kilomole. 1 Mole: Denotes the quantity of a chemical compound that has the same number of atoms as there are in Twelve grams of natural carbon-12. 103 moles are equivalent to one kilogram, or one kilomole, in the SI system of measurement (metrology).

mmol↔kmol 1000000 mmol make up 1 kmol.

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Answer:

They are pollinators of alfalfa.

Explanation:

Without them crops wouldn't be here.

Answer:

0.0023cl

Explanation: Hoped this helped! :)

55.03 moles of KCI are produced when 6743 grams of \(KClO_{3}\) decomposes

To determine the number of moles of KCl produced when 6743 grams of \(KClO_{3}\) decomposes, we need to use the concept of molar mass and the balanced chemical equation.

First, let's calculate the molar mass of \(KClO_{3}\)

The molar mass of potassium (K) is approximately 39.10 g/mol.

The molar mass of chlorine (Cl) is approximately 35.45 g/mol.

The molar mass of oxygen (O) is approximately 16.00 g/mol.

So, the molar mass of \(KClO_{3}\) is:

(39.10 g/mol) + (35.45 g/mol) + (3 * 16.00 g/mol) = 122.55 g/mol.

Now, we need to calculate the number of moles of \(KClO_{3}\):

Number of moles = Mass / Molar mass

Number of moles = 6743 g / 122.55 g/mol = 55.03 mol.

According to the balanced chemical equation:

2\(KClO_{3}\) -> 2 KCl + 3 O2,

we can see that for every 2 moles of \(KClO_{3}\), we obtain 2 moles of KCl.

Therefore, the number of moles of KCl produced will be equal to the number of moles of \(KClO_{3}\) since the ratio is 1:1. Thus, 55.03 moles of KCl will be produced.

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The molar mass when rected with sulphuric acid to liberate 249 mL of hydrogen gas is 48 g/mol

The volume (V) = 249 mL = 249 / 1000 = 0.249 L

Pressure (P) = 1.0079 – 0.03167 = 0.97623 bar

The temperature (T) = 25.0 °C = 25 + 273 = 298 K

Gas constant (R) = 8.314×10¯² bar.L/Kmol

Number of mole (n) =?

n = PV / RT

n = (0.97623 × 0.249) / (8.314×10¯² × 298)

n = 0.0098 mole

How to determine the mole of the metal

Balanced equation

M(s) + H₂SO₄(aq) —> MSO₄(aq) + H₂(g)

From the balanced equation above,

1 mole of M reacts to produce 1 mole of H₂.

Therefore,

Mole of metal = 0.0098 mole

Mass of metal = 0.539 g

Molar mass is given as mass upon mole

Molar mass of metal = 0.470 / 0.0098

Molar mass of metal = 48 g/mol

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Answer:

Left

Explanation:

Metals are located on the left of the periodic table, and nonmetals are located on the upper right. They are separated by a diagonal band of semimetals.

Answer:

When sugar dissolves,these whole sucrose molecules separate from one another

If a beaker contains 15.6 moles of water, H\(_2\) O, 9.3×10²⁴  are the number of molecules this represent.

The smallest recognisable unit into that a pure substance may be divided while retaining its composition & chemical properties is a molecule, which is a collection of more than one atom.

Until parts made up of individual molecules are reached, splitting of a sample of an item smaller progressively smaller parts does not result in a change regarding its composition as well as its chemical properties.

5.number of molecules= 15.6 ×  6.022×10²³

                                  =9.3×10²⁴  

6. .number of molecules=0.317  ×  6.022×10²³

                                  =1.89×10²³

7. number of moles =6.01 x 10 25/ 6.022×10²³

                               = 100 moles

8.  number of moles =3.54 x 10²¹/ 6.022×10²³

                               = 0.005moles

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Answer:

V2= 1.03L

Explanation:

Start off with what you are given.

V^1: 1.00L

T^1: 23°C

V^2?

T^2: 33°C

If you know your gas laws, you have to utilise a certain gas law called Charles' Law:

V^1/T^1 = V^2/T^2

Remember to convert Celsius values to Kelvin whenever you are dealing with gas problems. This can be done by adding 273 to whatever value in Celsius you have.

(23+273 = 296)     (33+273 = 306)

Multiply crisscross

1.00/296= V^2/306

296V^2 = 306

Dividing both sides by 296 to isolate V2, we get

306/296 = 1.0337837837837837837837837837838

V2= 1.03L

The Medal of Honor is the best navy decoration and highest volume.

The President of the USA The Victoria go is the holy grail for Medal of Honor creditors because there are the best in lifestyles. Bearing the inscription For valor and called a VC, this medal turned into first offered for conspicuous bravery' in 1856 and later backdated to the Crimean conflict of 1854. The outstanding service pass is the second maximum army ornament that may be provided to a member of the American military, for intense gallantry and risk of lifestyle in actual combat with an armed enemy force.

The Bronze Star Medal dates lower back to world battle II. these days, it is the fourth-maximum ranking award a provider member can obtain for a heroic and meritorious deed performed in an armed battle. For individuals who acquire the BSM, it's far a sign of their sacrifice, bravery, and honor at the same time as serving their us of a

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Potential energy diagram for a combustion reaction:. CLICK ON IMAGE.

In a typical combustion reaction, the reactants (e.g. a fuel and an oxidizer) are initially at a relatively high potential energy. As the reaction proceeds, the potential energy of the system decreases, and the products (e.g. carbon dioxide and water vapor) are at a lower potential energy than the reactants. The difference in potential energy between the reactants and products corresponds to the heat released during the reaction.

The diagram shows the initial energy level of the reactants, the activation energy required to initiate the reaction, and the final energy level of the products. The activation energy is the minimum amount of energy required for the reaction to occur.

Once the reactants have absorbed enough energy to reach the activation energy threshold, the reaction proceeds spontaneously and releases energy as it progresses to the lower-energy products.

Note that the shape of the potential energy diagram can vary depending on the specific reaction and the reaction conditions. For example, some reactions may have more complex energy profiles with multiple intermediate steps or energy barriers.

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Answer:

No and Yes

Explanation:

This is both possible and impossible. When you put your mind to what you believe, you can achieve it through patience and minded values. Your mind can either be your Greatest enemy or your Best Ally.

Answer:

urorrr

Explanation:

hahhahahahahhaahah oki nam omy mymy mymy

Answer: A) Volume of a gas B) Number of molecules C) temperature &pressure

Explanation: The law also states that the Kelvin temperature and the volume will be in direct proportion when the pressure exerted on a sample of a dry gas is held constant.

The free energy change for the hydrolysis of ATP by using the equation ATP(aq)+H2O(l)→ADP(aq)+Pi(aq) is -64362.77joules.

We can calculate the free energy change of reaction by using the standard free energy by using the below link:

ΔG = ΔG⁰ + RTlnQ, where

R = ideal gas constant = 8.314 J/mol.K

ΔG⁰ = standard free energy = -46.5 kJ = -46500 J

T = temperature = 298 K

Q = ratio of the products to reactants for the given chemical reaction

Q = [0.0019][0.0038] / [0.0089] = 8.1×10⁻⁴

On putting values on the above equation, we get

ΔG = -46500 + (8.314)(298)ln(8.1×10⁻⁴)

ΔG = -46500 + (2477.5)(-7.21)

ΔG = -46500 - 17862.77

ΔG = -64362.77

Hence required value of free energy change is -64362.77 joules.

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Answer:

1 and 2 are identical

Explanation:

Draw zigzag project

Answer:

El cloruro de litio se utiliza para fabricar litio metálico. El cloruro de litio se funde y electroliza. Esto produce litio metálico líquido.

Explanation:

sowwy si mi español es malo

Answer:

give him brainliest

Explanation:

P=17.4 KPa is the pressure exerted on the wall.

A t = 1.00s

A = 8x10" m²,

N = 5x10^23 molecules

ΔV = 300 m/s

P=?

As, Momentum for I molecule is 2 MΔV

N molecules is 2N MΔV

Force exerted on the wall = Momentum/Δt

Also, So, Pressure exented on the wall

P= F /A = 2NMΔV/AΔt=2×5×10^23×4.65×10^-26×300/8×10^-4×1

P=17.4 KPa

What do pressure units mean?

The standard unit of pressure is a pascal (Pa). Given that a pascal is a very small unit of pressure, the kilopascal is the most appropriate measurement for commonplace gas pressures (kPa). 1000 pascals make up one kilopascal. The atmosphere is another frequently used measurement of pressure (atm).

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The stoichiometric table and the rate law for the given elementary liquid phase reaction have been constructed. The rate constant and activation energy have been calculated, and the type of reaction energy has been specified as endothermic.

Stoichiometric table in terms of concentrations:

The stoichiometric table for the given reaction can be constructed as follows:

A + 2B → products

                             A                                B                                products

Feed         0.3*Cf                        0.7*Cf                                       0

Exit              (0.3-0.3X)*C             (0.7-0.7X)*C                                0

Change         -0.3XC                      -0.7XC                                     0

Where:

Cf = Total feed concentration

C = Concentration inside reactor

X = Conversion of A

Rate of reaction of A:

The rate of the reaction can be expressed as:

rA = -1/2 * dCA/dt = k*C^2

where, CA is the concentration of A and k is the rate constant.

Since the reaction is elementary, the rate law is proportional to the concentrations of the reactants raised to their stoichiometric coefficients.

The rate of disappearance of A = rate of appearance of B

rB = -dCB/dt = 2*rA

Therefore, the rate of reaction of A can be expressed as:

rA = (0.7Cf - 0.7C)/V = k*C^2

Substituting values, we get:

rA = (0.710 - 0.70.7X)/5 = k(0.3 - 0.3*X)^2

Calculation of k and E:

The rate constant k can be calculated using the Arrhenius equation:

k = A * exp(-Ea/RT)

where A is the frequency factor, Ea is the activation energy, R is the gas constant and T is the temperature in Kelvin.

Assuming the activation energy is 50 kJ/mol, we can calculate the rate constant at the given temperature of 333 K:

k = 0.00717 * exp(-50000/(8.314*333)) = 0.0001504

The reaction energy can be determined by calculating the activation energy using the rate constant at two different temperatures. Assuming the rate constant at 323 K is 0.000098, we can solve for Ea:

ln(k2/k1) = Ea/R * (1/T1 - 1/T2)

ln(0.000098/0.0001504) = Ea/8.314 * (1/323 - 1/333)

Ea = 43775 J/mol

The positive value of the activation energy indicates that the reaction is endothermic.

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Answer:

Explanation:

Small changes in the chemical nature of polysaccharides can make a big difference in how they work in our bodies. Polysaccharides are complex carbohydrates found in things like fiber and medicines. Even tiny changes in their structure can affect how they are digested, how they interact with cells, and their overall impact on our health. Scientists can use these changes to create materials with specific properties or develop new treatments. So, even small tweaks in polysaccharides can have a significant impact on how they function in our bodies.

The major properties of matter are volume, mass, and shape.

All matter however too is made up of tiny particles known as atoms.

Other characteristics properties of matter which can be measured include object's density, color, length, malleability, melting point, hardness, odor, temperature, and others

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The property of matter should be volume, mass, and shape.

The following information should be considered:

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The pressure of a gas inside a balloon filled with 0.8450 mol of gas at 315.00K is 1.374atm.

The pressure of a gas can be calculated by using the following formula:

PV = nRT

Where;

According to this question, a 15.9L balloon is filled with 0.8450 mol of gas at 315.00 K. The pressure is calculated as follows:

P × 15.9 = 0.8450 × 0.0821 × 315

15.9P = 21.85

P = 1.374atm

Therefore, the pressure of a gas inside a balloon filled with 0.8450 mol of gas at 315.00K is 1.374atm.

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Net ionic equation

Cu²⁺(aq)+S²⁻(aq)⇒CuS(s)

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

In the ion equation, there is a spectator ion that is the ion which does not react because it is present before and after the reaction  

When these ions are removed, the ionic equation is called the net ionic equation  

For gases and solids including water (H₂O) can be written as an ionized molecule  

Reaction

CuSO₄(aq)+Na₂S(aq)⇒CuS(s)+Na₂SO₄

ionic equation

Cu²⁺(aq)+SO₄²⁻(aq)+2Na⁺(aq)+S²⁻(aq)⇒CuS(s)+2Na⁺(aq+SO₄²⁻(aq)

spectator ions : 2Na⁺ and SO₄²⁻

Net ionic equation

Cu²⁺(aq)+S²⁻(aq)⇒CuS(s)

The resolution of the monochromator is 3.6nm

A monochromator is an optical device that is used to isolate a specific wavelength or range of wavelengths of light from a broader spectrum of light. It is typically used in spectroscopy, where the goal is to measure the intensity of light at a specific wavelength or over a range of wavelengths.

The resolution of a monochromator, Δλeff, is given by the equation: Δλeff = (D^-1) * (exit slit width)

Plugging in the given values:

Δλeff = (1.8 nm/mm) * (500 micrometers)

Converting micrometers to millimeters:

Δλeff = (1.8 nm/mm) * (0.5 mm)

Δλeff = 3.6 nm

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Answer:

Metals with larger grains have less grain-boundary area per unit volume, and hence will not be as able to generate as many entanglements at grain boundaries, thus the strength will be lower.

the sun cooks the clouds the clouds pee on the earth and all the water falls to earth, pushing all the wind down that's why we have earthquakes

The chemical bonds are generally of two types, they are ionic and covalent bonds. Here the number of bonds in the given compound is 4.

A chemical bond can be defined as the attractive force which holds the constituent atoms or ions of a molecular species together. Bonds arise from the electrostatic forces between the positively charged atomic nuclei and the negatively charged electrons.

The ionic bond is formed by the complete transfer of one or more electrons from one atom to another whereas the covalent bond is formed by the sharing of an electron pair between the atoms.

Here CCl₄ is a covalent compound which contains four non-polar covalent bonds between carbon and chlorine atoms. Here by sharing the electrons, 'C' attains the electronic configuration of 'Ne' and 'Cl' attains the configuration of 'Ar'.

Thus there are 4 bonds in CCl₄.

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They has been an occurrence of rainstorms in galetown.

This is simply when a downpour lasts for any length of time, it usually consists of short bursts of heavy rain interspersed with sporadic periods of lighter rain.

As the temperature rises, more ocean water evaporation occurs, releasing energy as well as water vapor into the atmosphere. The additional water vapor causes more rain and snow to fall. Intense downpours are likely to occur in areas that frequently rain. However, dry places are probably going to get even drier.

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Answer:

Explanation:

We start by getting the number of moles of the acid

We can get that by multiplying the molarity by the volume

From here, we can get the number of moles of the hydronium ion before the addition of the base

Since the acid is weak, dissociation will be incomplete

We have the dissociation as:

We can get the number of moles of the hydronium ion by the following steps:

We also have it that:

Using an ICE table, we know that the change in the reactant moles is x

Thus, we have it that:

We have the number of moles of hydrogen as x above

Now, we have the pH calculated by subtracting the number of moles of hydroxide ions and dividing by the total volume

We have the hydronium concentration after the addition of the base as follows:

Finally, we can get the pH. What we have from above is pOH since the base is stronger and the acid is weaker. It is expected that what we have is a basic solution.

Mathematically: