For Mn3+, write an equation that shows how the cation acts as an acid. express your answer as a chemical equation including phases.

Answer:

The atom is Na, sodium with a net charge of +1 because it lost an electron. it usually has 11 electrons.

Explanation:

sodium has a 11 protons  with an atomic mass of 23-11=12 neutrons.

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, the charge on atom is +1.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.

Since the number of electrons is 10. The number of protons is 11. So, there is loss of one electron, so the charge on atom is +1.

Therefore, the charge on atom is +1.

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After adding the next amounts of NH, the final solution's pH was 4.98. Strong acid plus weak base equals an acidic pH, which is supported by this.

If you'll note, NH3 and HNO3 have the same volume and concentration, while HNO3 only contains one H.

As a result, you should persuade yourself that these react exactly as they should because their mol quantities are equivalent.

Make use of the following equation to determine pH:

pH = -log [H+]

The pH formula can be used to determine the pH of a chemical solution and how acidic or basic it is: pH equals -log10[H 3 O +]. Anything below 7 is acidic, and everything over 7 is basic. Learn how to calculate the pH of any chemical solution using the procedures listed below.

To Identify pH true meaning:

The concentration of hydrogen ions in a solution is determined by the pH scale. A solution having a lot of hydrogen ions in it is acidic. Normally, the pH scale is displayed from 0 to 14. The solution is more straightforward the larger the number.

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Answer:

it's law

Explanation:

i got it wrong because i put the wrong answer but it was law or c

i hope this help's

Answer: ITS C

Explanation: Its C Laws

1) Diesel has a higher viscosity than petrol.

2) Petrol is more flammable than diesel.

3) The formula will be C₁₀H₂₂.

4) The equation is; 2C8H18+25O2→16CO2+18H2O.

Depending on the precise composition and temperature, the viscosity of gasoline and diesel can change. In general, diesel is more viscous than gasoline. Higher viscosity fluids are thicker and flow more slowly than lower viscosity fluids because viscosity relates to the resistance of a fluid to flow.

Diesel is less flammable than gasoline. The lowest temperature at which gasoline can evaporate and turn into an ignitable combination in air is known as its flash point, and it is lower for gasoline. Compared to diesel fuel, petrol vapors are much more flammable and can ignite at lower temperatures.

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The conclusion that can be drawn from the observation is that a glow stick glows longer at lower temperatures than at room temperature . The test variables are temperature and duration of reaction.

In this reaction, we observe that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. This means that temperature influences the duration of the reaction.

The simplest interpretation of this observation is that a glow stick glows longer at lower temperatures than at room temperature hence the glow stick in the freezer is found to glows for a longer duration than a glow stick kept at room temperature.

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When hydrogen bromide (HBr) is added to 2-methylbut-2-ene ((CH3)2CCHCH3), an electrophilic addition reaction takes place, where the π bond of the alkene is broken, and the hydrogen and bromine atoms are added to the resulting carbocation.

The reaction proceeds through a Markovnikov addition, where the hydrogen atom attaches to the carbon atom with the greater number of hydrogen atoms.

In this case, the initial addition of HBr to 2-methylbut-2-ene leads to the formation of a primary carbocation, as the positively charged carbon atom only has one alkyl group attached to it. The primary carbocation is relatively unstable, and it can undergo a rearrangement to form a more stable secondary carbocation.

The major product that is typically obtained is the 2-bromo-2-methylbutane. The hydrogen atom from HBr adds to the carbon with three hydrogen atoms (the more substituted carbon), resulting in the formation of a secondary carbocation.

On the other hand, a minor product is also formed, which is 3-bromo-2-methylbutane. This product arises from the addition of HBr to the primary carbocation, which is less stable. Although the primary carbocation is less favored, it can still be formed and lead to the formation of the minor product.

In summary, the addition of HBr to 2-methylbut-2-ene yields two products: the major product is 2-bromo-2-methylbutane, resulting from the addition of HBr to the more stable secondary carbocation, and the minor product is 3-bromo-2-methylbutane, originating from the less stable primary carbocation.

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Answer:

the TWO characteristics of an effective collision are:

1.Molecules collide with sufficient energy

2.Molecules collide with the proper orientation.

Answer:

Explanation:

40/ 180.2 x (-16 / 1 mole glucose)=-3.6 KJ

2.019g/ml

Given the following parameters:

• Mass, of the object = 5.45grams

• The ,volume ,of the object = 2.7ml

The formula for calculating the density of an object is expressed as:

Substitute the given parameters into the formula:

Therefore the density of the object with a mass of 5.45 grams and a volume of 2.7 ml is 2.019g/ml

Answer:

Explanation:

From the question, osmotic pressure exerted by a solution is equal to the MOLARITY multiplied by the absolute TEMPERATURE and the GAS CONSTANT r.

Let P = osmotic pressure,

C = molarity, then

T = absolute temperature

r=gas constant

The Osmotic pressure Equation exerted by a solution \(P=C*T*r\)

\(P=CTr\)

Then it was required in the question to write an equation that will let you calculate the molarity c of this solution, and this equation should contain ONLY symbols

C= molarity of the solution

P=osmotic pressure

r = gas constant

T= absolute temperature

\(C=P/(rT)\)

The equation that will let us calculate the molarity c of this solution = \(C=P/(rT)\)

Given that –

We know that –

Then –

\(\qquad\)\(\bf\longrightarrow pOH = 14 -12.5 \)

\(\qquad\)\(\sf \longrightarrow pOH = 1.5\)

\(\qquad\)\(\sf \longrightarrow [OH^- ] = 10^{-1.5 }\)

\(\qquad\)\(\bf \longrightarrow [OH^-] = 3.16 × 10^{-2}\)

Now the number of moles of KOH need to ensure that concentration of Hydroxide anions is equal to –

\(\qquad\)\(\bf \longrightarrow 3.74\: L \times \dfrac{3.16× 10^{-2}}{1 \: L }\)

\(\qquad\)\(\bf \longrightarrow 1. 18 × 10^{-1 }M \)

Volume of the solution contains the need number of moles of Hydroxide anions –

\(\qquad\)\(\sf \longrightarrow \dfrac{ 1.18×10^{-1} \: moles \: OH^-}{0.826 \: moles \: OH^-}\)

\(\qquad\)\(\sf \longrightarrow 0.143 L \)

\(\qquad\)\(\sf \longrightarrow 0.143 \times 1000\)

\(\qquad\)\(\pink{\bf\longrightarrow 143 mL }\)

______________________________________

Answer:

i think the answer should be a

Answer:

The stratosphere

Explanation:

Answer:

Constructive interference is when two waves interact causing larger waves because the crest will meet a crest or a trough will meet a trough which adds the waves together changing the size of the amplitude.

Destructive interference is when two waves interact causing smaller waves because the crest will meet a trough or a trough will meet a crest which subtracts the waves together changing the size of the amplitude.

The student's absolute error, given the data from the question is 0.09 mL

We'll begin by obtainig the volume of the water the student measured. This can be obtained as follow:

Density = mass / volume

Thus,

Volume = mass / density

Volume of water = 30 / 0.997

Volume of water = 30.09 mL

The absolute error can be obatined as illustrated below:

Absolute error = Measured value - accepted value

Absolute error = 30.09 - 30

Absolute error = 0.09 mL

Thue, the student's absolute error is 0.09 mL

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Answer:

The combined weights of several liquids mixed in an open flask be less than the sum of all the weights of the liquids because when the reaction occurs new products are formed and also some gases which releases in the atmosphere.

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

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Answer:

liquid

Explanation:

Adjusting pH in Water

Pure or distilled water has a pH level of 7, which means it is neutral. If you want to increase the pH of water, you must add an alkaline substance, such as baking powder, to it. If you want to decrease the pH of water, you add an acidic substance, such as lemon juice, to it

A buffer can be added to a solution to control the pH. The correct option is c.

PH is potential hydrogen. It is the value of how acidic or alkaline, the solution is.

The pH scale is consisting of 1 to 14 measure numbers, a pH less than 7 is acidic and a pH more than 7 is basic.

A buffer is a solution that maintains the pH of any solution.

Thus, the correct option is C, a buffer.

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Answer:

234.31

Explanation:

234.306 = five significant figures

234.31 = rounded to five significant figures

Answer:

the answer is C

Explanation:

Answer:

the adjective is the word "famous" because an adjective describes a noun. and ben franklin is the noun here. (or subject.)

Answer:

famous is the adjective, since it is describing Ben Franklin

Hope this helps.

The molarity of the sulfuric acid solution used in the titration is 1.038 M.

Molarity is the concentration of a substance in solution, expressed as the number of moles of solute per litre of solution.

Molarity of a solution involved in titration can be calculated using the following expression;

CaVa = CbVb

Where;

According to this question, 234.0 mL of a 0.444 M sodium hydroxide solution is titrated with 100.0 mL of an unknown concentration sulfuric acid solution.

100 × Ca = 234 × 0.444

100Ca = 103.87

Ca = 1.038 M.

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5 H₂O(l) + CuSO₄(s) → CuSO₄.5 H₂O(s) is the chemical equation which describes as an enthalpy change of formation.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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We can measure the slope of the tangent line to the curve at a certain position on a graph to calculate the pace of a response at that time.

A reaction is a process in which one or more reactants are changed into one or more products, also known as the final products. Atoms are rearranged and chemical bonds are made and broken between the atoms during a chemical reaction, which transforms reactants into products.

The instantaneous rate of the response at that particular time is indicated by the slope of the tangent line.

If we have a graph of the quantity of product produced over time, for instance, we can choose a point on the curve that represents a certain period, draw a tangent line to the curve at that location, and then calculate the slope of the line. The pace of the reaction at that specific moment is shown by the slope of the tangent line.

The average rate of the response over a certain period of time can be calculated by repeating this method at various points on the curve to produce a series of instantaneous rates.

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The electron will be located in is 4p in a hydrogen atom..

Given:

Three quantum numbers for an electron in a hydrogen atom in a certain state:

n = 4, l=1, \(m_l=1\)

To find:

The location of an electron.

Solution:

The principal quantum number, n = 4

The angular momentum quantum number = l = 1 = p-orbital

The magnetic quantum number = \(m_l\) = -l  to +l = -l , 0, +1

The electron will be located in is 4p in a hydrogen atom.

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Answer:

The sound playing from the first graph is louder, while the sound from the second graph is deeper, both of which have the same pitch.

Explanation:

First let's analyze the graphs,
Comparing the first graph to the second

Concluding from the above observations, the sound playing from the first graph is louder, while the sound from the second graph is deeper, both of which have the same pitch.