Why are prefixes often added to SI units?

The gate capacitance per micron of width is 2.21 x \(10^{-8}\)F/µm.

For the gate capacitance per micron of width we first find the gate capacitance (Cg).

As the capacitance of a parallel plate capacitor can be given by

C = εA/d ,where C is the capacitance, ε is the dielectric constant, A is the area of the plates and d is the distance between the plates.

So,  capacitance per unit length is: C = Cg/L.

We know that the dielectric constant (ε) of the gate oxide is 3.9.

The width is not given in the question, so we will assume it to be 1 µm .

Therefore, the area A = WL = 1µm x 90 nm = 9 x \(10^{-8}\)cm².The distance between the plates (d) is given, which is 16 Å. Therefore, d = 16 x \(10^{-8}\) cm.

Putting all the values in :Cg = εA/d = (3.9)(9 x \(10^{-8}\)cm²)/(16 x \(10^{-8}\) cm)Cg = 2.21 x \(10^{-14}\) F

Now, the gate capacitance per micron of width: C = Cg/L = 2.21 x \(10^{-14}\) F/1 µm = 2.21 x \(10^{-8}\) F/µm.

Therefore, the gate capacitance per micron of width is 2.21 x \(10^{-8}\) F/µm.

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Answer:

6 that will be the answer

Answer:

Strong Alkali – Is an alkali which dissociates – almost completely in aqueous solution thereby producing a – high concentration of hydroxyl [OH– ] ions.

Weak alkali – Is an alkali which dissociates – only partially in aqueous solution thereby producing a – low concentration of hydroxyl [OH–] ions.

The thermal velocity of the atom in the given atmosphere would be approximately 2044.35 m/s.

The thermal velocity of an atom can be calculated using the formula:

v = sqrt((3kT) / m)

Where:

v is the thermal velocity of the atom,

k is the Boltzmann constant (1.38 x 10^-23 J/K),

T is the temperature in Kelvin,

m is the mass of the atom.

In this case, we have a temperature of 290.00 K and the atom is 4.00 times more massive than hydrogen. Let's assume the mass of a hydrogen atom is approximately 1 atomic mass unit (u) or 1.67 x 10^-27 kg.

The mass of the atom in question would be 4.00 times the mass of hydrogen, which is 4.00 * 1.67 x 10^-27 kg = 6.68 x 10^-27 kg.

Plugging these values into the formula, we get:

v = sqrt((3 * 1.38 x 10^-23 J/K * 290.00 K) / (6.68 x 10^-27 kg))

Calculating the thermal velocity gives:

v ≈ 2044.35 m/s

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Answer:

this is answer brother

A commercial formula called concentrate needs to be diluted with water and formula in an identical ratio.

Infant formulae with added iron are advised, and the majority of commercial infant formulas sold in the US do so. Both liquid and powdered infant feeds are commercially available. Three types of infant formula are available: Before feeding, the powder needs to be dissolved in water. A similar amount of water must be added to the liquid concentrate before feeding. Ready-to-feed – Does not require mixing. (40 Cal/30 mL) Concentrated Liquid A standard dilution is one part concentrated liquid to one part water (20 Cal/30 mL). For comprehensive preparation guidelines, consult the product label. Powder One level, unpacked scoop of powder is used for every 60 mL of water at a standard dilution (20 Cal/30 mL). Formulas for toddlers or stage three are included.

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Ions present in the Cr₂O₃ compound are Cr⁺³ and O⁻².

Ions present in the PbCl₄ compound are Pb⁺⁴ and Cl⁻.

Ions present in Na₃PO₄ compound are Na⁺ and PO₄⁻³.

Ions present in Al(ClO₄)₃ compound are Al⁺³ and ClO₄⁻.

Ions present in SrSO₄ compound are Sr⁺² and SO₄⁻².

The name of the H₂SO₄ compound is sulfuric acid.

The name of the Cr₂S₃ compound is chromium(III) sulfide.

The name of the CCl₄ compound is carbon tetrachloride.

Ionization reactions can explain which ions make up an ionic compound between metal and non-metal. Look at the attachment for a complete question. The ionization reactions for compounds

Covalent compounds are composed of non-metallic elements and non-metallic elements. Naming covalent compounds using prefixes. But if only one atom is in the first part, we didn't have to use a prefix.

CCl₄ is a covalent compound

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Answer:

molarity 0.1

Explanation:

mass of copper nitrate =2.4

no of moles exist in 120ml= 2.4/187.5=0.0128mole

molarity =.0.0128/.12=0.1m

Answer:

A communicable disease

Explanation:

Diseases that can be transferred are known as communicable diseases.

Answer: 3.7926x1024 O atoms

Answer:

im pretty sure it is D

Explanation:

this is an old term for a microscopic organisms that included bacteria, protozoans, and very small animals

The changes in different properties such as concentration etc will change if the pH experiences a change.

This is referred to the power of hydrogen and is a measure of the degree of acidity or alkalinity of a substance.

When pH changes, the concentration as well as other properties in this context.

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Answer:

c (clay)

Explanation:

Answer:

98 g/mol

Explanation:

atomic mass for hydrogen=1

atomic mass for sulphur=32

atomic mass for oxygen=16

atomic mass for sulphuric acid=2H + S + 4O

=2x1 + 32 + 4x16

2+32+64=34+64

=98g/mol

The strong acid and strong base has high rate constant of dessociation. Weak acid and base are the one whose rate constant for the dissociation is low, they do not dissociate readily in water. Therefore, the correct option is option A.

Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base are the solution which releases hydroxide ion OH⁻ ion when dissolved in water.

The balanced equation is

H₂PO\(_4\)+H₂O → H\(_3\)O+ + HPO\(_4\)²-

H₂PO\(_4\) is a acid and if we remove one hydrogen ion from this then we get an anion called conjugate base. The pair is called acid base conjugate pair. H₂O is acid over here and if we give one hydrogen ion to this then the cation that we will get is called conjugate acid. The pair is called base conjugate acid pair.

Therefore, the correct option is option A.

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Based o the nature of the reactants and products:

A chemical reaction is a reaction that results in changes in the chemical properties of substances.

A chemical reaction results in the formation of new products.

There are several types of chemical reactions such as:

This is illustrated as follows: AB + C ---> AC + B

This is illustrated as follows: AB + CD ---> AC + BD

Hence, two ionic compounds react to produce two iob=nic compounds.

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Answer:

A option

Explanation:

Because recatants are in solid form having less enetropy and products are liquid form having more entropy

While other options reactants and products are in same phase gas phase having same entropy

The reaction that would result in increased entropy is the combustion reaction;

KNO3(s)--->K+(aq)+NO3-(aq). Option A

This is further explained below

Generally, a combustion reaction is simply a combustion process that occurs when a material combines with oxygen gas, producing energy as light and heat.

In conclusion, the chemical reaction KNO3(s)--->K+(aq)+NO3-(aq) is has all properties of a combustion reaction as the solid reactants gives an aq solution.

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Answer:

Explanation:

The equilibrium vapor pressure with respect to water (eow) is 259.9 Pa. assume that saturation vapor pressure is same as equilibrium vapor pressure.

Therefore, the RH at the frost point is  

RH = (eow / saturation vapor pressure) × 100

= (259.9 Pa / 259.9 Pa) × 100

= 100%

b) At T = -11 °C, we need to compare the equilibrium vapor pressure with respect to water (eow) and the equilibrium vapor pressure with respect to ice (coi) to determine if ice particles will form. From the given table, at T = -11 °C, the equilibrium vapor pressure with respect to water (eow) is 237.7 Pa, and the equilibrium vapor pressure with respect to ice (coi) is 165.3 Pa.

The air is supersaturated with respect to ice, and the presence of Kaolinite particles can provide surfaces for water droplets to condense onto, leading to the formation of ice particles.

c) At T = -12 °C, we compare the equilibrium vapor pressure with respect to water (eow) and the equilibrium vapor pressure with respect to ice (coi). From the given table, at T = -12 °C, the equilibrium vapor pressure with respect to water (eow) is 217.3 Pa, and the equilibrium vapor pressure with respect to ice (coi) is 181.2 Pa.

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Answer:

số đơn vị diện tích hạt nhân z là : 12 và 24

Answer:

The test for carbon dioxide uses an aqueous solution if calcium hydroxide which is lime water.And when carbon dioxide is bubbled through it , the colourless lime water turns milky or chalky

The type of attractive force that the arrow pointing at in the molecule is option C:  Intermolecular force.

Intermolecular forces are the forces of attraction or repulsion between molecules. These forces are weaker than chemical bonds and include forces such as dipole-dipole interactions, London dispersion forces, and hydrogen bonding.

Therefore, The arrow in the molecule is likely indicating the presence of one of these types of forces, which are intermolecular forces that hold the molecules together in a substance.

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Answer: Intermolecular

Explanation: Got it right on acellus

Answer:

Gravity

Explanation:

According to Newton's Law of Gravity, an object with mass will attract another object with mass.

Approximately, 259.2 grams of potassium bromide can dissolve at 324 grams of water in 55 degrees

What is potassium bromide?

Potassium bromide is a salt that is formed from the elements potassium and bromine. It is a white crystalline solid with a salty taste and is soluble in water.

Potassium bromide has a wide range of applications, including its use as a medication to treat epilepsy and as a sedative for animals. It is also used in the production of photographic paper, as a flame and in the preparation of various chemicals.

Therefore, 259.2 grams of potassium bromide can dissolve at 324 grams of water in 55 degrees

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The charge on the ions has a significant effect on the lattice energy/enthalpy change value.

The lattice energy is the energy released when gaseous ions come together to form an ionic solid. The enthalpy change is the heat released or absorbed during a chemical reaction. The lattice energy is proportional to the charge of the ions and inversely proportional to the distance between the ions. When ions have a higher charge, there is a stronger attraction between them, leading to a higher lattice energy. Similarly, when the distance between ions is smaller, the lattice energy is higher. This is because the ions are closer to each other, and their attractive forces are stronger. On the other hand, when ions have a lower charge or the distance between them is larger, the lattice energy is lower. This is because the attractive forces between the ions are weaker due to the smaller charge or larger distance between them.
In summary, the charge on the ions has a significant effect on the lattice energy/enthalpy change value. Higher charges lead to higher lattice energy, while lower charges lead to lower lattice energy. The distance between the ions also affects the lattice energy, with smaller distances leading to higher lattice energy.

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Answer:

0.086

Explanation:

A 5.2 molal aqueous solution of methyl alcohol indicates that 5.2 moles of methyl alcohol are present in 1 kilogram (or 1000 g) of water. Water has a molecular weight of 18 g/mol.

(100g)/18g/mol=55.56 mol

5.2 mol/(5.2mol+55.56 mol)=0.086

The pH of the solutions are approximately: (a) 3.40, (b) 7.46, (c) 0.32.

To calculate the pH of each solution, we need to determine the concentration of hydroxide ions (OH-) in the solution and then convert it to pH using the relationship: pH = -log10[OH-].

(a) 0.13 M KNO2:

KNO2 dissociates in water to form NO2- ions. Since we are given the Kb value for NO2, we can calculate the concentration of OH- ions using the Kb expression: Kb = [OH-][NO2-]/[NO2]. Given that the concentration of NO2- is equal to the concentration of KNO2 (0.13 M), we can set up the equation as follows:

2.5e-11 = [OH-][0.13]/[0.13]

[OH-] = 2.5e-11 M

pOH = -log10[OH-] ≈ 10.60

pH = 14 - pOH ≈ 3.40

(b) 0.37 M NaOCl:

NaOCl dissociates in water to form OCl- ions. We can use the Kb expression for OCl to calculate the concentration of OH- ions:

2.9e-7 = [OH-][OCl-]/[OCl]

[OH-] = 2.9e-7 M

pOH = -log10[OH-] ≈ 6.54

pH = 14 - pOH ≈ 7.46

(c) 0.48 M NHACIO4:

NHACIO4 is a strong acid, meaning it dissociates completely in water, releasing H+ ions. Therefore, the concentration of H+ ions in the solution is equal to the concentration of NHACIO4 (0.48 M).

pH = -log10[H+] = -log10[0.48] ≈ 0.32

In summary, the pH of the solutions are approximately: (a) 3.40, (b) 7.46, (c) 0.32.

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The material that has the largest increase in temperature is B) Cadmium.

The amount of energy required to raise the temperature of one gram of  material by one degree Celsius is called as specific heat capacity. The formula for the change in temperature of a material is ΔT = ΔQ / (m × c)

ΔT is change in temperature, ΔQ is amount of energy added, m is mass of the material, and c is specific heat capacity of the material.

The specific heat capacities of the four materials are:

Iron: 0.45 J/(g°C)

Cadmium: 0.23 J/(g°C)

Silver: 0.24 J/(g°C)

Copper: 0.39 J/(g°C)

ΔT_iron = 100 J / (10.0 g × 0.45 J/(g°C)) = 22.2°C

ΔT_cadmium = 100 J / (10.0 g × 0.23 J/(g°C)) = 43.5°C

ΔT_silver = 100 J / (10.0 g × 0.24 J/(g°C)) = 41.7°C

ΔT_copper = 100 J / (10.0 g × 0.39 J/(g°C)) = 25.6°C

Therefore, material with the largest increase in temperature is Cadmium, with a temperature increase of 43.5°C.

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Answer:

Iron Correct on Acellus

Explanation: