A 25.0-cm long cylindrical glass tube, sealed at one end, is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 45.23 g. The density of ethanol is 0.789 g/mL. Calculate the inner diameter of the tube in centimeters.

Answer:

Each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties.

Explanation:

Answer:

s = 30 miles = 48.2 km

Explanation:

Since, Gabby Goose is flying at a constant speed. Therefore, the formula for the distance covered by Gabby Goose while flying is given as follows:

\(s = vt\)

where,

s = distance covered while flying = ?

v = speed of flying = 30 mph

t = time consumed = 1 h

Therefore, using these values in the equation, we get:

\(s = (30\ mph)(1\ h)\)

s = 30 miles = 48.2 km

Answer:

4.8*10^6

Explanation:

Simply count the number of decimal places moved to the left until you get 1 digit IN front of the decimal

Answer:

i belive your talking about Conduction

Explanation:

if  im

wrong comment

The statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly. That is option B.

Kinetic Molecular Theory (KMT) is defined as the theory that describes the physical behaviour of gases.

The Kinetic Molecular Theory (KMT) include the following:

Therefore, the statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly.

Learn more about gas here:

https://brainly.com/question/25649765

#SPJ1

In the bicycle assembling process, the limiting reactant is seats since they will be used up first.

A limiting reactant is a reactant which is used up first in a reaction and on which product formation depends on.

In a given reaction, once the limiting reactant is used up, the reaction will stop.

For a bicycle to be assembled, 1 frame, 1 seat, 1 seat of handlebars, 1 seat of pedals and 2 tires are required.

In the process of assembling bicycles, there are 114 frames, 300 tires, 75 seats, 109 sets of pedals, and 84 sets of handlebars.

Therefore, the limiting reactant is seats since they will be used up first.

Learn more about limiting reactant at: https://brainly.com/question/14225536

#SPJ1

Answer:

16

Explanation:

Because the sum of all electron in that compound should be 41 and as it has one electron extra ,total no. of electrons are 42 .

So if we add 26 +16 we get 42

Hence it's correct answer

The interdependent relationship between advances in technology and scientific discoveries has enhanced our understanding of the universe. schooling, merchandising, and different multidisciplinary efforts by way of fostering higher information about the multidimensional nature of research.

Development in technological know-how and technology studies seeks to improve the techniques of technology and technology studies, Clinical expertise is used to create new technologies. New technology regularly allows scientists to explore nature in distinct ways and make new discoveries.

Technological know-how is the have a look at the natural world through a scientific approach i.e. collecting facts via a systematic procedure. And era is in which we observe science to create gadgets that can solve issues and perform distinct responsibilities. technology is literally the utility of science.

Society drives technological improvements and scientific inquiry. technology offers us a perception of what form of technology we should doubtlessly create and a way to create them, even as technology allows us to behave in addition to medical studies.

Learn more about technology here:-https://brainly.com/question/25110079

#SPJ1

Answer:

About 14.45 seconds

Explanation:

If a object is going 4.5m/s and its destination is 65m then you need to divide.

65÷4.5 = 14.444444

due to the constant 4 you need to round 14.444 so it would be 14.45 seconds.

The volume of hydrogen gas produced in the reaction of 73 grams of zinc and 73 grams of hydrochloric acid (under normal conditions) is approximately 22.4 liters.

To calculate the volume of hydrogen gas produced in the reaction of zinc and hydrochloric acid, we need to use the principles of stoichiometry and the ideal gas law.

First, let's write the balanced chemical equation for the reaction between zinc (Zn) and hydrochloric acid (HCl):

Zn + 2HCl →\(ZnCl_2\)+ H2

From the equation, we can see that one mole of zinc reacts with two moles of hydrochloric acid to produce one mole of hydrogen gas. To determine the number of moles of zinc and hydrochloric acid, we need to convert the given masses into moles.

The molar mass of zinc (Zn) is approximately 65.38 g/mol, so 73 grams of zinc is equal to:

73 g Zn * (1 mol Zn / 65.38 g Zn) ≈ 1.116 mol Zn

Similarly, the molar mass of hydrochloric acid (HCl) is approximately 36.46 g/mol, so 73 grams of HCl is equal to:

73 g HCl * (1 mol HCl / 36.46 g HCl) ≈ 2.002 mol HCl

According to the balanced equation, the reaction produces one mole of hydrogen gas for every two moles of hydrochloric acid. Therefore, since we have 2.002 moles of HCl, we expect to produce half that amount, or approximately 1.001 moles of hydrogen gas.

To calculate the volume of hydrogen gas, we can use the ideal gas law, which states:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. In this case, we assume the reaction is conducted under normal conditions, which means a pressure of 1 atmosphere and a temperature of 273.15 Kelvin.

Rearranging the equation to solve for V, we have:

V = nRT / P

Substituting the values, we get:

V = (1.001 mol) * (0.0821 L·atm/(mol·K)) * (273.15 K) / (1 atm) ≈ 22.4 L

Therefore, the volume of hydrogen gas produced in the reaction is approximately 22.4 liters.

For more such information on: volume

https://brainly.com/question/29796637

#SPJ8

Answer:

The mass of oxygen is 12.10 g.

Explanation:

The decomposition reaction of potassium chlorate is the following:

2KClO₃(s) → 2KCl(s) + 3O₂(g)

We need to find the number of moles of KClO₃:

\( \eta_{KClO_{3}} = \frac{m}{M} \)

Where:

m: is the mass = 30.86 g

M: is the molar mass = 122.55 g/mol

\( \eta_{KClO_{3}} = \frac{30.86 g}{122.55 g/mol} = 0.252 moles \)                                      

Now, we can find the number of moles of O₂ knowing that the ratio between KClO₃ and O₂ is 2:3

\( \eta_{O_{2}} = \frac{3}{2}*0.252 moles = 0.378 moles \)

Finally, the mass of O₂ is:

\( m = 0.378 moles*32 g/mol = 12.10 g \)

Therefore, the mass of oxygen is 12.10 g.

I hope it helps you!

The percentage yield would be 90.42%

First, the balanced equation of the reaction is as follows:

Ca₃(PO₄)₂ (s) + 3H₂SO₄ (aq) → 2H₃PO₄ (aq) + 3CaSO₄ (aq)

From the equation, the mole ratio of Ca₃(PO₄)₂ and H₃PO₄ is 1:2

Recall that: mole= mass/molar mass

Mole of Ca₃(PO₄)₂ = 23.7/310.174

                               = 0.076 mole

Mole ratio of Ca₃(PO₄)₂ and H₃PO₄ = 1:2

Mole of H₃PO₄ = 0.076 x 2

                         = 0.153 mole

Theoretical yield (in g) of H₃PO₄ = mole x molar mass

                                   = 0.153 x 97.994

                                   = 14.82 g

Percentage yield of H₃PO₄ = actual yield/theoretical yield x 100

                                         = 13.4/14.82 x 100

                                         = 90.42%

More on percentage yield of reactions can be found here: brainly.com/question/20758645

Answer:

Q < Ksp

Explanation:

The general equilibrium of a constant product solubility, ksp, is:

AB ⇄ A⁺ + B⁻

Where Ksp is defined as:

Ksp = [A⁺] [B⁻]

When [A⁺] [B⁻] = Ksp, the solution is saturated or oversaturated because there are the maximum amount of ions that solution can dissolve.

When the solution is oversaturated, AB is produced.

Now, in a unsaturated solution, the [A⁺] [B⁻] is less than the maximum amount that can be dissolved. That means:

[A⁺] [B⁻] = Q < Ksp

Q is defined in the same way than Ksp, just in Q the system is not in equilibrium.

Right answer is:

The  mathematical relationship for an unsaturated solution in comparing Q with K sp is Q < Ksp.

Since

The general equilibrium of a constant product solubility, ksp, should be

AB ⇄ A⁺ + B⁻

Here. Ksp is defined as:

Ksp = [A⁺] [B⁻]

At the time When [A⁺] [B⁻] = Ksp, the solution should be saturated or oversaturated since there are the maximum amount of ions that solution can dissolve.

When the solution is oversaturated, AB is produced.

Now, in a unsaturated solution, the [A⁺] [B⁻] is lower than the maximum amount that can be dissolved. That means [A⁺] [B⁻] = Q < Ksp

Learn more about solution here: https://brainly.com/question/21960832

Answer:

limiting reactant is aluminum

Explanation:

Answer:

Explanation:

1a. 85% of 5.670 g is ...

  0.85 × 5.670 g = 4.8195 g . . . . mass of silver

1b. The value of that will be ...

  (4.8195 g)($0.49/g) ≈ $2.36 . . . . value of silver in a pre-1955 quarter

__

2. 1 pound is 453.59237 g (exactly), so the density of the peanut butter is ...

  density = mass/volume = (453.59237 g)/(436.6 cm^3)

  density ≈ 1.0389 g/cm^3

We expect this peanut butter to sink in water, as its density is more than the 1.00 g/cm^3 density of water.

1.

2.

Given:

1) Mass of pre-1955 quarter is 5.670g, 85% of silver by mass.

Silver is currently valued at $0.49 per gram.

2) A 1-lb jar of peanut butter is found to have a volume of \(436.6 cm^3\)

To find:

Mass of silver in pre-1955 quarter

The value of silver in quarter

Density of the peanut butter

Whether peanut buter will float or sink in water.

Solution:

1) Mass of pre-1955 quarter = 5.670g

The percentage of the silver in the quarter =85%

Mass of silver in pre-1955 quarter= \(5.670 \times \frac{85}{100}=4.8195 g\)

The mass of silver in quater is 4.1895 grams,

The current value of the silver =  $0.49 per gram g

The value of silver in quarter :

\(=4.8195 g\times 0.49 \$/g=\$2.36\)

The value of the silver in the quarter is $2.36.

2)

The mass of peanut butter in jar = m = 1 lb = 453.592 g

The volume of peanut butter in the jar = v = \(436.6 cm^3\)

The density of the peanut jar = d

\(d=\frac{m}{v}\\\\=\frac{453.592 g}{436.6 cm^3}=1.039 g/cm^3\)

The density of peanut butter is  \(1.039 g/cm^3\)

The density of the water = D = \(1 g/cm^3\)

d > D

The density of peanut butter is greater than density of water which indicates that peanut butter will sink in water.

Learn more about perentage mass and density here:

brainly.com/question/3940233?referrer=searchResults

brainly.com/question/14373997?referrer=searchResults

Answer:

7.71x10^23 molecules

Explanation:

Avogadro's # = 6.022x10^23

1.28 mol SiO2 x 6.022x10^23/ 1 mol SiO2 = 7.71x10^23 molecules

The equation in the symbolic form can be written as,

\(\tau \;- > e- + {\bar{\nu }} e + \nu\tau\)

The total number of quarks in a helium nucleus consisting of 2 protons and 2 neutrons is 12 quarks.

Any of a family of particles (such as electrons, muons, and neutrinos) that have spin quantum number ¹/₂ and that experience no strong forces.

The equation in the symbolic form can be written as,

\(\tau \;- > e- + {\bar{\nu }} e + \nu\tau\)

Charge on the left side = -1

Charge on the right side = -1+0+0 = -1

As the charge on the electron antineutrino,  \({\bar{\nu }}\) e and the tau neutrino,  \(\nu\tau\) are zero each.

Thus, charge on left side = charge on right side

Or, the equation is in accordance with charge conservation.

Lapton number of left side = 1

Laptop number of right side = 1-1+1 = 1

This is because, lapton number of the particles involved are,

Tau lapton, \(\tau\)-1 = 1,

Electron, e-1 = 1,

Electron antineutrino,  \({\bar{\nu }}\)e = -1,

Tau neutrino, \(\nu\tau\)= 1,

Thus, lapton number of left side = lapton number of right side

So, the equation obeys lapton number conservation.

2.

The total number quarks in a helium nucleus which is composed of 2 protons (positively charged particle) and 2 neutrons (uncharged particle) is:

Since there 3 quarks in each nucleon, 4 nucleons would have a total of 12 quarks.

Just simply multiply 3 quarks by the number of nucleons:

So, 3 (quarks) x 4 (nucleons) = 12 quarks

Therefore, there are 12 quarks in 4 nucleons.

Learn more about lepton decays here:

https://brainly.com/question/12044097

#SPJ1

Answer:

Try this for answer 3082.24

Maddy made the error of multiplying by 10 rather than 100, which produced an answer that was 10 times off in the conversion of units.

The work of Maddy is flawed. We must multiply the value in grammes by 100 to convert it to centigrammes. Maddy gave the wrong answer of 7.5 cg by multiplying the weight in grammes by 10 rather than 100.

In order to convert 0.75 grammes to centigrammes, use the following formula:

100 cg/g x 0.75 g equals 75 cg

Consequently, 0.75 grammes is 75 centigrammes. Maddy made the error of multiplying by 10 rather than 100, which produced an answer that was 10 times off.

Learn more about conversion of units:

https://brainly.com/question/19420601

#SPJ1

The molecular formula tell you about the numbers of each kind of atom that are combined together and it helps in naming of ionic compounds.

Ionic compounds are formed when ions with opposing negative and positive charges form ionic bonds and form compounds, which are compounds made of ions. The molecular formula tell you about the numbers of each kind of atom that are combined together

Ionic compounds are named by stating the cation first, followed by the anion. When a neutral atom loses one or more electrons, it acquires a positive charge and is called a cation and when an atom gains one or more electrons, it becomes an anion and acquires a negative charge.

Learn more about Molecular formula, here:

https://brainly.com/question/29435366

#SPJ1

The electronic configuration tells us how the electrons are configured within the atom. To write the electronic configuration of Manganese (Mn) we first check its atomic number in the periodic table, this will tell us the number of protons that the element has. The number of protons in Mn is 25.

In a neutral atom, the number of electrons will be equal to the number of protons, but in this case, we have an ion with a positive charge +4.

But since it tells us to write down its ground state configuration you can refer to writing down the Mn atom configuration. Therefore we will take into account the 25 electrons of Mn.

Now, to fix the electrons and the way in which the electrons are filled, we can be guided by the Aufbau principle. The following figure shows a scheme of how the electrons are filled:

Source: https://commons.wikimedia.org/wiki/File:Atomic_orbital_diagonal_rule.svg

Now we are writing the configuration following the order of the arrows until completing 25 electrons.

We must remember that we have different kinds of orbitals and each orbital has the capacity to hold a maximum number of electrons. The s orbital holds 2 electrons, the p orbital holds 6.

Therefore the configuration will be:

The coefficient of each orbital represents the energy level, that is to say, that here we have 4 energy levels.

The superscripts represent the number of electrons, the sum of them must be equal to 25 in this case.

Answer:

for every 1 water droplet produced, .5 hydrogen. gas is also produced

Explanation:

make one x and one y

The frequency of a photon of yellow light with a wavelength of 4.63 X 10-⁷m is 6.48 × 10¹⁴ Hz.

The frequency of a wave can be calculated by using the following formula:

v = fλ

Where;

According to this question, a photon of yellow light with a wavelength of 4.63 X 10-⁷m is given. The frequency of this photon can be calculated as follows:

f = 3 × 10⁸m/s ÷ 4.63 X 10-⁷m

f = 6.48 × 10¹⁴ Hz

Therefore, the frequency of a photon of yellow light with a wavelength of 4.63 X 10-⁷m is 6.48 × 10¹⁴ Hz.

Learn more about frequency at: https://brainly.com/question/14316711

#SPJ1

The equilibrium pressure of the nitrogen oxide is given as 4 atm.

Kp is the equilibrium constant for a chemical reaction in terms of partial pressures. It is defined as the ratio of the product of the partial pressures of the products raised to their stoichiometric coefficients to the product of the partial pressures of the reactants raised to their stoichiometric coefficients

We know that;

Kp = \(pNO_{2} ^2/pN_{2} ^2 . pO_{2}\)

\(3.2 * 10^-28 = (2x)^2/(3.21 - 2x) (6.21 - x)\\3.2 * 10^-28 = 4x^2/19.9 - 3.21x - 12.42x + 2x^2\\3.2 * 10^-28(19.9 - 15.63x + 2x^2) = 4x^2\\6.4 * 10^-27 - 5 * 10^-27 x + 6.4 * 10^-28x^2 = 4x^2\\x = 4 atm\)

Learn more about Kp:https://brainly.com/question/30550192

#SPJ1

Best example of a new substance being formed is the reaction between hydrogen gas and oxygen gas to form water.

In this reaction, two hydrogen molecules (H₂) react with one oxygen molecule (O₂) to form two water molecules (H₂O). The resulting substance, water, has entirely different properties from its constituent elements. For example, water is a liquid at room temperature, while both hydrogen and oxygen are gases.

Water also has different chemical and physical properties, such as boiling point, melting point, density, and solubility. These changes in properties indicate that a new substance with a different chemical composition has been formed. The process of hydrogen and oxygen reacting to form water is an example of a chemical reaction, which involves the breaking and forming of chemical bonds between atoms to create new substances.

To learn more about chemical reaction, here

https://brainly.com/question/29039149

#SPJ1

Answer:

A weak acid

Explanation:

Im not sure if its right. But lets see someone else do it.

Answer:

B. A strong acid.

An electrolyte with a pH less than 4 is a strong acid, that with pH range of 4 - 7 is a weak acid, that with 7 - 10 is a weak base, that with pH range of 10 - 14 is a strong base.

Answer:

I believe the answer is Reflecting Telescope

Explanation:

-leeknowishawt

Answer:

See below, please.

Explanation:

a. 1 mol H₂O has more representative particles than 1 mol OCl₂. This is because 1 mol of a substance contains Avogadro's number of particles (6.02 x 10²³), and H₂O has two atoms per molecule while OCl₂ has three atoms per molecule. Therefore, 1 mol of H₂O has twice as many particles as 1 mol of OCl₂.

b. 0.5 mol O₂ has more representative particles than 0.75 mol H₂. This is because O₂ is a diatomic molecule, meaning it contains two atoms per molecule, while H₂ only has one atom per molecule. Therefore, even though the quantity of H₂ is greater, O₂ has more particles overall.

c. 3.0 mol SnO₂ has more representative particles than 1.5 mol SnO. This is because SnO₂ has two atoms of oxygen per molecule, while SnO only has one atom of oxygen per molecule. Therefore, for the same number of moles, SnO₂ has twice as many oxygen atoms and thus more representative particles.

d. 0.66 mol FeO has more representative particles than 0.33 mol Fe₂O₃. This is because FeO has one atom of iron per molecule, while Fe₂O₃ has two atoms of iron per molecule. Therefore, for the same number of moles, FeO has twice as many iron atoms and thus more representative particles.