Calculate the volume of 0.500 M C2H3OH and 0.500 M CH3O-Na required to prepare 0.100 L of pH = 5.00 buffer with a buffer strength of 0.100 M. The pKa of C2H302H is 4.75. C2H302H: Number C2H3O2Na: Number

pH = -log[H3O+] = -log(8.26 x 10^-5) = 4.083 (three decimal places because the concentration had three sig figs)

Glycinate donates an electron pair so it is a bidentate ligand.

The molecular formula is C₂H₄NO₂⁻. The octahedral complex is formed between glycinate molecules and cobalt(III) and the stoichiometry of the complex is [Co(gly)₃]. The reaction is as follows;

Co₃⁺(aq) + 3C₂H₄NO₂⁻ ⇒ [Co(C₂H₄NO₂⁻](aq)

A cobalt complex is formed when 3 glycinate ions equivalents react with one Co₃⁺ ion equivalent so, it is necessary to keep the glycinate ions concentration greater than the cobalt(III) ions at least three times more.

So, taking the concentration 4 times greater can facilitate the reaction.

For a complex whose concentration is 0.015M, 0.06M glycinate ions are required to obtain the desired cobalt(III) glycinate complex.

You can learn more about glycinate complex from the following answer;

https://brainly.com/question/28285145

#SPJ4

Intermolecular  forces  of attraction prevent ice cubes from adopting the shape of their container,intermolecular forces are overcome when ice melts,intermolecular forces are overcome when liquid water is vaporized and for conversion to hydrogen and oxygen gas intramolecular forces are overcomed.

Forces of attraction is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

https://brainly.com/question/2224641

#SPJ1

An acid chloride is much more reactive toward nucleophiles than an ester because Cl– is a much weaker base than RO– and is therefore a better leaving group.

In the context of nucleophilic substitution reactions, a nucleophile attacks the carbonyl carbon of an acid chloride or an ester, displacing the leaving group and forming a new bond to the carbonyl carbon. In the case of an acid chloride, the chloride ion is a better leaving group than the alkoxide ion in an ester, because it is less basic and more stable. This means that when a nucleophile attacks an acid chloride, the chloride ion is more easily displaced, leading to a faster and more efficient reaction.

Additionally, the electronegativity of the chlorine atom in an acid chloride is higher than that of the oxygen atom in an ester. This means that the carbonyl carbon in an acid chloride is more electrophilic and more prone to attack by a nucleophile than the carbonyl carbon in an ester.

In summary, the higher reactivity of acid chlorides toward nucleophiles compared to esters is due to the weaker basicity and better leaving group ability of the chloride ion, as well as the higher electrophilicity of the carbonyl carbon in an acid chloride.

To know more about esters, refer

https://brainly.com/question/28118164

#SPJ11

Answer:

the empirical formula

Explanation:

I remember learning this last year.

Answer:

the empirical formula

Explanation:

Answer:

Electrons.

Explanation:

Answer:

oh yes chemical oxidation removes

Explanation:

but i m not sure hope it is right i haven't looked book this time

Answer: First, we need to calculate the total fuel consumption per day for all 380 SSTs:

Fuel consumption per hour: 5,320 gallons

Number of planes: 380

Hours per day: 14

Total fuel consumption per day = 5,320 x 380 x 14 = 28,190,400 gallons

Next, we need to convert gallons to metric tons of jet fuel:

1 gallon = 0.00378541 metric tons

28,190,400 gallons = 106,698.89 metric tons

Now, we can calculate the total crude oil needed to produce this amount of jet fuel:

1 ton of jet fuel = 7,000 kilograms of crude oil

106,698.89 tons of jet fuel = 746,892,230 kilograms of crude oil

To convert kilograms to metric tons:

1 metric ton = 1,000 kilograms

746,892,230 kilograms = 746,892.23 metric tons

Finally, we can calculate the percentage of crude oil production used for SST fuel:

World crude oil production in 1990 = 4.02 x 10^9 metric tons

Percentage of crude oil used for SST fuel = (746,892.23 / 4.02 x 10^9) x 100

= 0.0186%

Therefore, approximately 0.0186% of the crude oil production in 1990 was used for fuel for the SSTs.

Enjoy brainiest appreciated (;  

Explanation:

1. If you measure the value of Hydronium concentration is 3.0x10-3 M/L, the solution can be predicted to be acidic. This is because the concentration of hydronium ions, H3O+, is greater than the concentration of hydroxide ions, OH-. The pH value of an acidic solution is less than 7. Since hydronium ions are present in a high concentration, the pH value of the solution will be less than 7.

2. If you measure the number of Hydronium ions is 3.0x1012, the solution can be predicted to be acidic. This is because the concentration of hydronium ions is greater than 1.0 x 10^-7 M/L. The pH value of an acidic solution is less than 7.

3. If you measure the number of Hydroxide ions is 3.0x10-2 moles, the solution can be predicted to be basic. This is because the concentration of hydroxide ions is greater than 1.0 x 10^-7 M/L. The pH value of a basic solution is greater than 7. Hence, if the number of hydroxide ions is greater than 1.0 x 10^-7 M/L, the solution will be basic.

Learn more about prediction of acid, base or neutral in a solution here https://brainly.in/question/11844799

#SPJ11

While an element on the periodic table does not automatically qualify as a mineral, there are cases where a mineral can contain an element. In this context, it is important to consider the distinction between elements and minerals in geology. Elements are pure substances composed of atoms of the same type, while minerals are naturally occurring inorganic substances with a specific chemical composition and crystal structure.

In geology, minerals are defined as naturally occurring inorganic substances with a specific chemical composition and crystal structure. While elements themselves are not considered minerals, there are instances where minerals contain a single dominant element.

One such example is the mineral gold (Au), which consists entirely of the element gold. Gold meets the criteria of a mineral as it is naturally occurring, has a specific chemical composition (Au), and possesses a crystalline structure. Therefore, gold can be classified as both an element and a mineral.

It is essential to note that not all elements can be classified as minerals. For example, gases like oxygen (O2) or elements that exist in an amorphous state, such as liquid mercury (Hg), do not exhibit the necessary crystalline structure to be considered minerals.

To learn more about periodic table click here: brainly.com/question/15987580

#SPJ11

The net force would be 10 N.

Net force, also known as the resultant force, is the total force acting on an object after considering all individual forces acting on it. In other words, it's the sum of all forces that an object is subjected to.

The net force is calculated by adding up all the forces acting on an object in a particular direction and determining the single force that would produce the same effect as all those forces.

In this case, pushing force = 39 N, pulling force = 29 N

Net force = 39 N pushing force - 29 N pulling force

                = 10 N pushing force.

In other words, the net force is 10 N pushing.

More on net force can be found here: https://brainly.com/question/29261584

#SPJ1

Answer:

1000ml/1L

Explanation:

Answer:

liquid

gas

Explanation:

liquid has an indefinite shape

gas has an indefinite shape

Answer:

gas and liquid

Explanation:

gas and liquid flow around and take the shape of their containers because the molecules are more spread apart

Yes, it is possible to have a homomorphism from a group of 6 elements to a group of 10 elements. In general, the size or order of a group does not restrict the existence of a homomorphism between two groups.

A homomorphism is a function between two groups that preserves the group operation.

In other words, if we have groups G and H with respective binary operations (multiplication or addition), a function f: G ⇒ H is a homomorphism if it satisfies the property:

f(a × b) = f(a) × f(b)

Now, if group G with 6 elements and group H with 10 elements, it is possible to define a homomorphism between them as long as the group operation is preserved.

The specific nature of the groups and the mapping itself would determine the exact form of the homomorphism.

Therefore, it is indeed possible to have a homomorphism from a group of 6 elements to a group of 10 elements.

To learn more about Homomorphism, click here:

https://brainly.com/question/6111672

#SPJ4

27.5 ml of 0.0350 M NaOH are required to titrate 65.0 ml of 0.0620 M HBr to the equivalence point.

According to the problem,65.0 mL of 0.0620 M HBr is titrated with 0.0350 M NaOH at the equivalence point.

For an acid and base titration, the equivalence point is where the acid and base are neutralized. The balanced chemical equation for this reaction is:

HBr + NaOH → NaBr + HOH

The equation shows that one mole of HBr reacts with one mole of NaOH. So, we can use the following formula to find the moles of NaOH:

moles of NaOH = moles of HBr

At the equivalence point, the moles of HBr in the 65.0 mL of 0.0620 M HBr is:

moles of HBr = (65.0 mL)(0.0620 mol/L) = 4.03 × 10⁻³ moles

The number of moles of NaOH needed to neutralize this amount of HBr is also 4.03 × 10⁻³ moles.

Moles of NaOH = moles of HBr = 4.03 × 10⁻³ moles

Now we can use the formula to find the volume of NaOH that contains this amount of moles of NaOH:

moles of NaOH = Molarity × Volume (in liters)4.03 × 10⁻³ moles = (0.0350 mol/L) × Volume (in liters)Volume (in liters) = 4.03 × 10⁻³ moles ÷ 0.0350 mol/L = 0.115 L

Volume (in milliliters) = 0.115 L × 1000 mL/L = 115 mL

Therefore, the volume of 0.0350 M NaOH required to titrate 65.0 mL of 0.0620 M HBr to the equivalence point is 27.5 mL (115 mL - 65.0 mL).

To know more about mole visit:

https://brainly.com/question/31748788

#SPJ11

Answer:

room

Explanation:

because it'd in your house and u go there everyday and sleep and live there

The molar mass of the gas, given that 3.25 g of the gas occupied 2.56 L is 30.66g/mol

To obtain the molar mass of the gas, we shall first obtain the number of mole of the gas. This can be obtained as follow:

PV = nRT

0.95 × 2.56 = n × 0.0821 × 280

Divide both sides by (0.0821 × 280)

n = (0.95 × 2.56) / (0.0821 × 280)

n = 0.106 mole

Haven obtain the mole of the gas, we shall determine the molar mass of the gas as follow:

Molar mass = mass / mole

Molar mass of gas = 3.25 / 0.106

Molar mass of gas = 30.66g/mol

Thus, the molar mass of the gas is 30.66g/mol

Learn more about molar mass:

https://brainly.com/question/15874532

#SPJ1

Answer:

C. A linear, nonpolar molecule

Explanation:

Molecules which are alike usually have the same degree of pull which results in them sharing electrons. This sharing of electrons is known as the molecules exhibiting Covalent bonding between them.

The equal pull also results in the cancelling out of electrons and favoring non polar bonds due to the absence of free electrons which would have been able to interact with H2O in a polar binding system.

Answer:

C

Explanation:

APEX

Most acid waves used in salons have a pH value between 4.5 and 7.0.

To explain further, pH is a scale used to measure the acidity or alkalinity of a substance. The scale ranges from 0 to 14, with 7 being neutral, values below 7 indicating acidity, and values above 7 indicating alkalinity. Acid waves, also known as acid perms, are used in salons to create permanent curls or waves in hair.

Acid waves typically have a pH value between 4.5 and 7.0, which is mildly acidic to neutral. This range is considered less damaging to the hair compared to alkaline perms, which have a higher pH value (around 9-10) and can cause more hair damage due to the higher concentration of alkaline substances. Acid waves work by breaking the disulfide bonds in hair proteins, allowing the hair to be reshaped into curls or waves. After the desired shape is achieved, a neutralizing agent is applied to reform the disulfide bonds, locking in the new hair structure.

In summary, most acid waves used in salons have a pH value between 4.5 and 7.0, which contributes to their reputation as a gentler alternative to alkaline perms. This pH range allows the acid waves to effectively reshape hair while minimizing potential damage.

Learn more about pH: https://brainly.com/question/172153

#SPJ11

Answer: The ratio of the amounts of U 238 and Pb 206 in a rock sample enables the age of the rock to be estimated using the technique of radiometric dating. It moves back in the periodic table until the isotope falls in the band of stability at Pb 206.

Explanation:

This is because they have hydroxyl groups in their side chains that can be phosphorylated.

An explanation for this is that phosphorylation is a common mechanism used to regulate protein function, and kinases are enzymes that catalyze the addition of a phosphate group to specific amino acids.

This addition can change the conformation or activity of the protein, affecting its function within the cell.

In summary, cysteine, glutamine, tryptophan, and arginine are not commonly phosphorylated by kinase-mediated reactions. Tyrosine, serine, and threonine are the amino acids most commonly targeted for phosphorylation.

Learn more about hydroxyl click here:

https://brainly.com/question/27328650

#SPJ11

A sample of a gas has a volume of 20.  when the pressure is 2.0 atm: The volume of the gas will be 5 L, an increase in volume.

Extent is a measure of occupied three-dimensional space. it is regularly quantified numerically by the usage of SI-derived gadgets or by using diverse imperial or US commonplace devices. The definition of length is interrelated with quantity.

Volume is defined as the distance occupied within the boundaries of an item in a 3-dimensional area. it's also referred to as the capacity of the object. volume is the degree of the 3-dimensional space occupied with the aid of a count number or enclosed by means of a surface, measured in cubic units. The SI unit of quantity is the cubic meter (m3), which is a derived unit.

Learn more about Volume here:

https://brainly.com/question/959531

#SPJ4

Answer:

Permanent hardness (mineral content) is generally difficult to remove by boiling. If this occurs, it is usually caused by the presence of calcium sulfate/calcium chloride and/or magnesium sulfate/magnesium chloride in the water, which do not precipitate out as the temperature increases

Explanation:

plz mark me brainlist

The correct products of the reaction between potassium superoxide and water are potassium hydroxide (KOH) and oxygen gas (O₂).

When potassium superoxide (KO₂) reacts with water (H₂O), it primarily produces potassium hydroxide (KOH) and releases oxygen gas (O₂).

The balanced chemical equation for the reaction is:

2 KO₂(s) + 2 H₂O(l) → 2 KOH(aq) + H₂O₂(aq) + O₂(g)

In this reaction, each KO₂ molecule reacts with two water molecules. The potassium superoxide (KO₂) reacts with water to form potassium hydroxide (KOH) and hydrogen peroxide (H₂O₂). Additionally, oxygen gas (O₂) is released as a byproduct.

Learn more about potassium superoxide on:

https://brainly.com/question/15112710

#SPJ11

#1

Here the basic reaction of C and O_2 occurs hence

\(\\ \sf\bull\longmapsto {C\atop 1mol}+{O_2\atop 1mol}={CO_2\atop 2mol}\)

#2

First we have to find moles if Oxygen

\(\\ \sf\bull\longmapsto No\:of\:moles=\dfrac{Given\:mass}{molar\:mass}\)

\(\\ \sf\bull\longmapsto \dfrac{16}{16}\)

\(\\ \sf\bull\longmapsto 1mol\)

Hence

It will be same like 1st one i. e 2mols of CO_2 will be produced .

#3

Now we already found moles in 16g of dioxygen

Hence

\(\\ \sf\bull\longmapsto {C\atop 2mol}+{O_2\atop 1mol}\longrightarrow {CO_2\atop 3mol}\)

Answer:

Answer:

-415.5°F (-248.6°C)

Explanation:

Answer: The melting point/condensation point of neon is 24.53888889. Of course, I'm sure you can round that. The freezing point would be 521.74. All of this is in Kelvin

Answer:

3 chlorine atoms are needed because each chlorine atom accepts one of  Aluminum three valence electrons to obtain a full octet and makes chlorine a  negatively charged anion

Explanation:

How many chlorine atoms are needed when making Aluminium Chloride?

The formular for aluminium chloride is given as; AlCl3

In the compound, Aluminium has a valency of +3 and the three chlorine atoms each have a valency of +1 to make the compound a neutral compound.

That meas we can represent AlCl3 as Al³⁺ and 3Cl⁻

The correct statement is;

3 chlorine atoms are needed because each chlorine atom accepts one of  Aluminum three valence electrons to obtain a full octet and makes chlorine a  negatively charged anion

Answer: True

Explanation: