Which of the following is least like the others on the list?

a. Glucose
b. Glycogen
c. Sucrose
d. Catalase

1. The % concentration is 20.7% and the molar concentration, Cm, is 1.5 M.

2. 7.8 grams of potassium sulfate will be formed.

3. 10.7 grams of ammonium chloride will be formed.

4. The volume of hydrogen gas that will be produced is 3.86 liters.

5. 21.43 grams of the 70% acetic acid is needed to prepare 500 grams of 3% acetic acid solution.

1. Mass of potassium sulfate = 1.5 moles * (174.26 g/mol) = 261.39 g

Mass of water (H₂O) = 1000 g

% = (mass of solute/mass of solution) x 100

% = (261.39 g / (261.39 g + 1000 g)) x 100

% ≈ 20.7%

Cm = moles of solute / volume of solution

Moles of potassium sulfate (K2SO4) = 1.5 moles

Volume of water (H2O) = 1000 g / (density of water) = 1000 g / 1 g/mL = 1000 mL = 1 L

Cm = 1.5 moles / 1 L

Cm = 1.5 M

2. The balanced equation for the reaction is:

H₂SO₄ + 2 KOH → K₂SO₄ + 2 H₂O

Molar mass of sulfuric acid (H₂SO₄) = 98.09 g/mol

Moles of sulfuric acid = 10 g / 98.09 g/mol

Moles of sulfuric acid = 0.102 mol

Based on the mole ratio of the reaction, 0.102 moles of sulfuric acid will react to form 0.102 moles of potassium sulfate.

Molar mass of potassium sulfate = 174.26 g/mol

Mass of potassium sulfate = 0.102 mol x 174.26 g/mol

Mass of potassium sulfate ≈ 17.8 g

3. The balanced equation for the reaction is:

Molar mass of hydrochloric acid (HCl) = 36.46 g/mol

Moles of hydrochloric acid (HCl) = 7.3 g / 36.46 g/mol

Moles of hydrochloric acid ≈ 0.2 mol

Based on the mole ratio of the reaction, 0.2 moles of hydrochloric acid will react to form 0.2 moles of ammonium chloride.

Molar mass of ammonium chloride (NH₄Cl) = 53.49 g/mol

Mass of ammonium chloride = 0.2 mol x 53.49 g/mol

Mass of ammonium chloride ≈ 10.7 g

4. The balanced equation for the reaction is:

Molar mass of zinc (Zn) = 65.38 g/mol

Moles of zinc = 13 g / 65.38 g/mol

Moles of zinc ≈ 0.199 mol

Based on the mole ratio of the reaction, 0.199 moles of zinc will react to produce 0.199 moles of hydrogen gas.

Volume of sulfuric acid = 30 g / (density of H₂SO₄ )

The density of H₂SO₄ is 1.84 g/mL

Volume of sulfuric acid  = 30 g / 1.84 g/mL

Volume of sulfuric acid ≈ 16.3 mL or 0.0163 L

Using the ideal gas law, the volume of hydrogen gas produced will be:

V = nRT / P

V = (0.199 mol)(0.0821 L·atm/(mol·K))(273 K) / (1 atm)

V ≈ 3.86 L

5. Assuming that the concentrated original solution of acetic acid is 100% acetic acid (CH₃COOH).

Mass of acetic acid = 500 g x (3/100) = 15 g

The concentrated original solution, however, is 70% acetic acid.

70% acetic acid (mass) = 100% acetic acid (unknown mass)

0.7 * (unknown mass) = 15 g

Solving for the unknown mass:

unknown mass = 15 g / 0.7

unknown mass ≈ 21.43 g

Learn more about percentage concentration at: https://brainly.com/question/18761928

#SPJ1

Answer

We have the following chemical reaction:

Now we calculate how many moles (n) of CH4 react, we use its molar mass:

Now we calculate the moles of CO2 produced. As we can see from the equation for every mol of CH4 that reacts 1 mol of CO2 is produced. So in this case 11.93 moles are produced. Now we calculate the corrisponding mass.

So the answer is 524g.

The atom itself is not the smallest known particle, but instead each atom is made up of three individual parts: electrons, protons and neutrons. Furthermore, protons and neutrons themselves are made up of even smaller parts called quarks.

Atoms are not considered the smallest particles of an element upon recent deliberations. An element has to be an atom, because individual protons, neutrons and electrons aren't elements.

The ph value of human saliva is between 6.2-7.6 with 6.7 being the average pH

ph value of human saliva is 7 and 6

Explanation:

8H+(aq) + MnO4-(aq) + 5Fe2+(aq) → Mn2+(aq) + 5Fe3+(aq) + 4H2O(l)

To determine if a substance was reduced or oxidized, the oxidation number at the reactant and product side is compared.

When oxidation occurs, an element loses electrons and its oxidation number increases (becomes more positive). When reduction occurs, an element gains electrons and its oxidation number decreases or is reduced (becomes more negative).

H+ (oxidized or reduced) Answer 1 Choose...

There is an increase in oxidation number from 0 to 1. This means H+ was oxidized.

MnO4- (oxidizing or reducing agent) Answer 2 Choose...

In chemistry, an oxidizing agent is a substance that has the ability to oxidize other substances — in other words to accept their electrons

MnO4- is a strong oxidizing agent.

Fe2+ (oxidizing or reducing agent) Answer 3 Choose...

A reducing agent means it will itself get oxidized. In  this reaction, Fe2+ is the reducing agent.

Fe2+ (oxidized or reduced) Answer 4 Choose...

Oxidized

O in MnO4- (oxidized or reduced) Answer 5 Choose...

There is no change in oxidation number of , so it was neither reduced nor was it oxidized.

Mn in MnO4- (oxidized or reduced) Answer 6 Choose...

There is a decreaase in oxidation number from +7 to +2. This means reduction.

Answer:

The correct answer is letter A. Condensation nucleii

The wavelength of the light will be 9.63 × 10²³ m .The wavelength of the wave is calculated using the frequency formula.

The quantity of cycles finished in a certain amount of time is known as frequency. It also indicates the number of crests that pass past a specific position in a unit of time. It is often referred to as the reciprocal of time. Hertz are used to express frequency (Hz). The frequency of the wave is calculated using the frequency formula.

The total number of times a repeated event occurs in a unit of time is known as its frequency. Depending on the quantities known, various frequency formulas exist to calculate frequency. The terms frequency (f), time period (T), wave speed (V), and wavelength () are all found using the formula for the frequency of a wave.

We know that ,

Frequency= Speed of light/ wavelength

Wavelength= Frequency × Speed of light

=  3.215 ×10¹⁵ × 2.997× 10⁸

= 9.639 × 10²³ m

The wavelength will be obtained by frequency -wavelength formula a and it will come as 9.63 × 10²³ m .

To know more about wavelength, please refer:

https://brainly.com/question/6297363

#SPJ9

The mass of the excess reagent remaining after completion of reaction, given that 8 g of magnesium is heated with 8 g of phosphorous is 0.98 g

First, we shall obtain the mass of the excess reagent that reacted. This is shown below:

6Mg + P₄ -> 2Mg₃P₂

From the balanced equation above,

145.8 g of Mg reacted with 124 g of P₄

Therefore,

8 g of Mg will react with = (8 × 124) / 145.8 = 7.02 g of P₄

Finally, we shall obtain the mass of the excess reagent remaining after the reaction. Details below:

Mass of excess reagent, P₄ remaining = Mass given - mass reacted

= 8 - 7.02

= 0.98 g

Thus, the mass of the excess reagent remaining after the reaction is 0.98 g

Learn more about mass of excess reagent:

https://brainly.com/question/29117366

#SPJ1

The creation of water (H2O), as well as the production of heat and light, signal the release of bond energy when hydrogen gas (H2) combines with oxygen gas (O2).

Bond Energy, commonly referred to as average bond enthalpy or just bond enthalpy, is a measurement that provides information about how strong a chemical bond is. "The average value determined from the bond dissociation enthalpies (in the gaseous phase) of all the chemical bonds of a certain type in a given chemical compound," is how the word "bond energy" is defined by the IUPAC. As a result, the average amount of energy needed to break one of these chemical bonds may be thought of as the bond energy of a chemical bond in a specific molecule.

Learn more about Bond Energy.

brainly.com/question/17514510

#SPJ4

The image illustrate nuclear fission. Nuclear fission is the splitting of a nucleus of heavy atoms, such that of the plutonium or into two roughly equal mass fragments.

Nuclear fission is the splitting of a nucleus of heavy atoms, such that of the plutonium or into two roughly equal mass fragments. A significant amount of energy is released during the process. A significant amount of energy is produced, radioactive byproducts are created, and a number of neutrons are emitted during the fission process.

The central core of an atom splits into two nuclei that are during nuclear fission. When the nucleus is excited by a variety of particles (such as neutrons, protons, deuterons, and alpha particles) or by electromagnetic radiation takes the form of gamma rays, the process may occur spontaneously or be induced. The image illustrate nuclear fission.

Therefore, the image illustrate nuclear fission.

To know more about nuclear fission, here:

https://brainly.com/question/29141330

#SPJ2

Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus option C is correct option.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.

Giant planet atmospheres have layers of clouds and aerosols (tiny liquid droplets) made from different chemicals because different chemicals condense at different temperatures.

Therefore,  option C is correct option.

To learn more about matter, here:

https://brainly.com/question/4562319

#SPJ1

Answer:

No

Its a chemical change so the characteristics or chemical properties always differs thereby the properties of sodium chloride isn't similar to sodium or chloride

Answer:

0.637 V

Explanation:

The balanced redox reaction is:

Here Zn undergoes oxidation by loss of electrons, thus act as anode. Lead undergoes reduction by gain of electrons and thus act as cathode.

Where both are standard reduction potentials.

= -0.763

= -0.126

The standard emf of a cell is 0.637 V

The number of moles of Co that would be required to react with 6.14 moles of P4 would be 36.84 moles

From the equation of the reaction:

6Co + P4 → 2Co3P2

For every 1 mole of P4, 6 moles of Co is required for complete reaction.

Thus, the mole of Co that would be needed for 6.14 moles of P4 would be:

                      6 x 6.14 = 36.84 moles

More on stoichiometric calculations can be found here: https://brainly.com/question/8062886

Answer:

C) Continental drift :)

Explanation:

Answer:

iron and chlorine

Explanation:

Considering the definition of molarity, 0.4375 moles of iron(II) nitrite you would recover.

In order to find the moles of the solid that can be recovered from this solution, you need to use the definition of molarity.

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

\(Molarity=\frac{number of moles}{volume}\)

Molarity is expressed in units \(\frac{moles}{liters}\).

Moles of iron(II) nitrite

In this case, you evaporated 125 mL of a 3.5 M solution of iron(II) nitrite​. Then you know:

Replacing in the definition of molarity:

\(3.5 M=\frac{number of moles}{0.125 L}\)

Solving:

number of moles= 3.5 M× 0.125 L

number of moles= 0.4375 moles

Finally, 0.4375 moles of iron(II) nitrite you would recover.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

When 7.524 is rounded to 3 significant figures, it will be 7.52.

The process of changing a number to a nearby number with fewer significant digits is known as rounding.

Rounding can be done to the nearest integer, the nearest tenth, the nearest hundredth, and so on.

Here are some pointers on rounding numbers to a certain number of significant digits:If the digit following the last significant digit is less than 5, simply drop it and all following digits.

(round down)For example, 2.832 rounded to two significant digits is 2.8 since the 3 is followed by a 2 which is less than 5.

If the digit following the last significant digit is greater than 5, add 1 to the last significant digit, then drop all of the digits that follow it.

(round up)For example, 4.673 rounded to two significant digits is 4.7 since the 3 is followed by a 7 which is greater than 5.

If the digit following the last significant digit is exactly 5, the preceding digit is odd, and no other digits follow, increase the last significant digit by 1.

If the digit following the last significant digit is exactly 5, the preceding digit is even, and no other digits follow, simply leave the last significant digit alone.

For example, 2.875 rounded to two significant digits is 2.9 since the 5 is followed by an odd number, which means that the 8 should be rounded up, while 2.765 rounded to two significant digits is 2.8 since the 5 is followed by an even number, which means that the 6 should be left alone.

For more such questions on rounding

https://brainly.com/question/17396482

#SPJ8

Answer:

877800 Joules of energy is released

Explanation:

mass m = 3000 g

initial temperature = 80 c

Final temperature = 10 c

Change in temperature ΔT = 80 - 10 = 70 c

Heat H = ?

The relationship between these parameters is given by;

H = mcΔT

Where c = specific heat capacity = 4.18 J/gc

H = 3000 * 4.18 * 70 = 877800 Joules

Answer:

thermal energy

Explanation:

due to the heat

Answer:

Answer:kinetic energy

Explanation:

Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position).

Answer:

the answer is chemical element because when a symbol consists of two letters the first letter is always capitalized

To determine the number of 325 mg tablets of aspirin that would be deadly for a 60 lb child, we first need to convert the weight to kg.

1 lb is equal to 0.453592 kg. Therefore, a 60 lb child weighs approximately 27.2155 kg (60 x 0.453592).

The lethal dose of aspirin is 50 mg per kg of body weight. Therefore, for a 27.2155 kg child, the lethal dose would be 1,360.775 mg (27.2155 x 50).

Each aspirin tablet is 325 mg. Therefore, the number of tablets that would be deadly for the child would be 4.19 (1,360.775 / 325).

However, it is important to note that even a slightly higher dose of aspirin can be harmful to a child, and it is never recommended to give aspirin to children without consulting a doctor first.

To know more about aspirin, visit :

https://brainly.com/question/29133232

#SPJ1

Answer:

d

Explanation:

The only hypothesis that is testable using the scientific method would be that all swans are white.

The scientific method involves a series of steps through which scientists are able to arrive at a conclusion about the natural world. The steps include observation, drawing up falsifiable hypotheses from observations, testing the hypotheses using experiments, and then arriving at conclusions based on the data gathered from the experiment.

There is no way to test the mortality of all men as this will require harming humans in order to prove their mortality. The best color is also subjective as individuals have their preference when it comes to color. There is no way to prove the hypothesis that no life exists on other planets as this will require visiting other planets, a gesture that is practically impossible. That swimming is fun can also be subjective. Not everyone finds swimming interesting.

The hypothesis that all swans are white can be tested by sampling the population of swans in different areas and recording their colors objectively.

Hence, the correct option is d.

The hypothesis 'all swans are white' is testable by using the scientific method (Option d).

In conclusion, the hypothesis 'all swans are white' is testable by using the scientific method (Option d).

Learn more in:

https://brainly.com/question/2695653

Answer: letter C ("Simply rearrange during the reaction to form new molecules").

Explanation:

The question requires us to choose, among the options given, which one correctly represents what happens to atoms when they participate in a chemical reaction.

A chemical reaction involves the breaking of bonds between the reactants molecules (or particles) and the formation of new bonds to obtain the products.

In a balanced chemical reaction, the number of atoms in reactants and products is the same, thus we can affirm that the atoms that exist in the beginning of the reaction are not lost or transformed in completely new atoms. Although a chemical reaction may release energy, this energy is the result of breaking and forming new bonds.

A catalyst is a substance that is able to increase the rate of the reaction without taking part in the process of the reaction (the catalyst should not go through any permanent change during the reaction). Therefore, the catalyst is not able to replace atoms in the chemical reaction.

Considering what happens in a chemical reaction, we can say that the atoms present at the beginning of the reaction are rearranged in order to yield the products of the reaction.

Therefore, considering the information above, the best option to answer the question is letter C ("Simply rearrange during the reaction to form new molecules").

Answer:

3 atoms

Explanation:

there is one calcium and two chlorine