Write orbital diagrams for each of these ions.


V5+,Cr3+,Ni2+,Fe3+


Determine if the ion is diamagnetic or paramagnetic.


V5+,Cr3+,Ni2+,Fe3+

4.447 x10^13 J  is the nuclear binding energy per mole if the mass defect of a certain isotope is 0.1172 u per atom or 0.1172 g per mol? express your answer in joules.

BE = dleta mc^2.

Given that, delta m = mass defect = 0.4941 g per mol = 0.4941/1000 kg/mol c = 3x10^8 m/s

BE = ( 0.4941/1000) x (3x10^8)^2= 4.4469 x10^13

    = 4.447 x10^13 J

Nuclear binding energy is energy required to completely separate an atomic nucleus in with its constituting protons and neutrons, or the energy freed by combining protons and neutrons into a single nucleus. Isotopes are atoms that have the same number of protons but number of protons. They have nearly identical chemical composition but differ in volume and thus in physicochemical parameters.

Learn more about Nuclear binding energy here:

https://brainly.com/question/2923968

#SPJ4

If an IV bag of 500 mL D5W is infusing at a rate of 50 mL/hr, and the IV bag was hung at 11:30 am, the infusion will be complete in 10 hours and 30 minutes.

To determine the time it takes for the infusion to be complete, we need to consider the volume of the IV bag and the infusion rate.

The IV bag contains 500 mL of D5W (5% dextrose in water). The infusion pump is set at a rate of 50 mL/hr, which means 50 mL of the solution is administered every hour.

To find the time it takes for the infusion to be complete, we divide the total volume of the IV bag (500 mL) by the infusion rate (50 mL/hr):

Time = Volume / Rate

Time = 500 mL / 50 mL/hr

Time = 10 hours

Since the IV bag was hung at 11:30 am, we add 10 hours to this time to determine when the infusion will be complete:

11:30 am + 10 hours = 9:30 pm

Therefore, the infusion will be complete at 9:30 pm.

To know more about infusing click here:

https://brainly.com/question/28790508

#SPJ11

Answer:

[Y₂] = 31.25M

Explanation:

Based on the chemical reaction:

2X(g) + Y2(g) ⇌ 2XY(s)

We must define the equilibrium constant, K as:

K = 20 = 1 / [X]²[Y₂]

Where [X] and [Y₂] are the equilibrium concentrations of each gas.

If [X] = 4.0x10⁻²M:

20 = 1 / [4.0x10⁻²M]²[Y₂]

0.032 = 1 / [Y₂]

Answer:

Yes, at 801 °C

Explanation:

Answer:

a. 21.7824 g

b. 0.2362 g

c. 31.5273 g

Please see the answers in the picture attached below.

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

The mass of solute required in each case can be obtained form the stoichiometry of the reaction.

We know that the mass of each solution can be obtained from the relation;

mass/molar mass = concentration × volume

mass = concentration × volume × molar mass

a)

mass =  0.125 M  ×  1.00 L ×  174 g/mol = 21.75 g

b) mass = 0.015 M  × 375 /1000 × 42 g/mol = 0.24 g

c) mass = 0.350 M × 500/1000 × 180 g/mol =31.5 g

Learn more: https://brainly.com/question/9743981

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

The statement that best describes the cell condition supporting Na+ sequestration in the vacuole is option B: Na+ sequestration can occur if the concentration of protons (H+) in the cytoplasm is less than the concentration of protons (H+) in the vacuole.

Option B accurately describes the condition that enables Na+ sequestration in the vacuole. In plant cells, the vacuole plays a crucial role in ion homeostasis by actively transporting ions such as Na+ into its lumen, maintaining a lower concentration of Na+ in the cytoplasm compared to the vacuole.

This sequestration process relies on proton pumps present in the vacuolar membrane, which actively transport protons (H+) from the cytoplasm into the vacuole, creating an electrochemical gradient. The higher concentration of protons (H+) in the vacuole creates an electrochemical potential that facilitates the uptake of Na+ ions.

By maintaining a lower concentration of protons (H+) in the cytoplasm relative to the vacuole, the cell can drive Na+ ions into the vacuole against their concentration gradient, effectively sequestering them and preventing their accumulation in the cytoplasm.

Learn more about  vacuole

brainly.com/question/32997273

#SPJ11

Answer:

Explanation:

got it right

Ionic compounds are composed of an ion pair of opposite charge. Usually, the positive ion is a metal cation while the negative ion is a non metal anion. The two ions are held together by strong electrostatic interaction.

The charge of the element will be -2. The subscript of Li is the charge of X and that of X be the charge of Li, that is +1.

Lithium is 3rd element in periodic table. It is the first element in the first group called the alkali metals having one valence electron and thus forms the oxidation state of +1.

Lithium shows both covalent and ionic character. But preferably it forms ionic compounds. Li donates its one valance electron to the bonding non-metal and the non metal gains a negative charge.

Here, two lithium atoms are needed to bond with the element x, thus x needs two electrons to attain octet. Therefore the charge of the element x will be -2, and that of each lithium is +1. The charge of the anionic part is written as subscript for cationic part and vice versa.

To find more on lithium, refer here:

https://brainly.com/question/1439744

#SPJ5

Answer:

Nope im cool to sleep right now

Explanation:

The chemist should use 30 liters of the 20% solution, 20 liters of the 30% solution, and 40 liters of the 60% solution to obtain a mixture of 90 liters containing 40% acid.

Let's denote the number of liters of the 20% solution as x, the number of liters of the 30% solution as y, and the number of liters of the 60% solution as z.

According to the problem, we have the following information:

The total volume of the mixture is 90 liters: x + y + z = 90.

The desired percentage of acid solution in the mixture is 40%: (0.20x + 0.30y + 0.60z) / 90 = 0.40.

The chemist wants to use 2 times as much of the 60% solution as the 30% solution: z = 2y.

Now, we can solve these equations simultaneously to find the values of x, y, and z.

From equation 3, we have z = 2y.

Substituting this into equation 1, we get:

x + y + 2y = 90

x + 3y = 90 (equation 4)

From equation 2, we have:

(0.20x + 0.30y + 0.60z) / 90 = 0.40

Multiplying both sides by 90, we get:

0.20x + 0.30y + 0.60z = 36

0.20x + 0.30y + 0.60(2y) = 36 (since z = 2y)

0.20x + 0.30y + 1.20y = 36

0.20x + 1.50y = 36 (equation 5)

Now, we can solve equations 4 and 5 simultaneously to find the values of x and y.

Multiplying equation 4 by 0.20, we get:

0.20(x + 3y) = 0.20(90)

0.20x + 0.60y = 18

Subtracting this from equation 5, we eliminate x and solve for y:

0.20x + 1.50y - (0.20x + 0.60y) = 36 - 18

0.90y = 18

y = 18 / 0.90

y = 20

Substituting this value of y back into equation 4, we find:

x + 3y = 90

x + 3(20) = 90

x + 60 = 90

x = 90 - 60

x = 30

Since z = 2y, we have:

z = 2(20)

z = 40

Therefore, the chemist should use 30 liters of the 20% solution, 20 liters of the 30% solution, and 40 liters of the 60% solution to obtain a mixture of 90 liters containing 40% acid.

To know more about acid solutions:

https://brainly.com/question/28982585

#SPJ4

Answer:

0.147

Explanation:

Moles equals mass over AR/MR so 1.662 over 11 gives 0.147

Thompson's model concluded that the atom contained something small and negative. The correct option to this question is C.

Thomson's description of the atomic model is one of many scientific models of the atom. Created by J.J. Thomson in 1904, shortly after the electron was discovered. However, the atomic nucleus had not yet been discovered at that time. So he proposed a model based on the known properties available at the time. Known properties are:

Atoms are neutrally charged

Inside an atom are negatively charged particles called electrons. According to the assumptions of Thomson's atomic model, an atom resembles a positively charged sphere with electrons (negatively charged particles) inside.

For more information on Thompson's model kindly visit to

https://brainly.com/question/14246826

#SPJ1

1. Two specific sources of error in this experiment could be heat loss to the surroundings and inaccurate measurements of reactants. Heat loss can be minimized by insulating the calorimeter or conducting the experiment in a temperature-controlled environment.

Inaccurate measurements can be avoided by using more precise instruments for measuring the reactants and ensuring the equipment is properly calibrated.
2. It is important to have the temperatures of the HCl and NaOH solutions equal or very close to the same at the beginning of part A to ensure accurate results. Equal temperatures allow for a more accurate measurement of the temperature change during the reaction, which is necessary for calculating the enthalpy change. Unequal temperatures may introduce error into the enthalpy calculations, potentially leading to incorrect conclusions.
3. If the magnesium sample was contaminated with an equal weight of MgCl2, the change in enthalpy for the Mg-HCl reaction would be affected. The contamination would decrease the amount of Mg available to react, leading to a smaller enthalpy change. Since enthalpy is an extensive property, a decrease in the reacting Mg amount would result in a lower overall enthalpy change.Two specific sources of error in this experiment could be heat loss to the surroundings and inaccurate measurements of reactants. Heat loss can be minimized by insulating the calorimeter or conducting the experiment in a temperature-controlled environment.
4. If you replaced the magnesium in Part B with an equal weight of sodium, the enthalpy of the reaction would be different. Sodium has a different reactivity and specific heat capacity compared to magnesium, resulting in a different enthalpy change for the reaction. The specific enthalpy change would depend on the reaction between sodium and the given reactants, but it would likely differ from the enthalpy change observed with magnesium.

learn more about calorimeter here

https://brainly.com/question/28034251

#SPJ11

Answer:

1

Explanation:

fluorine's atomic number is 9

electronic configuration: 2,7

so it needs 1 electron to stabilise

that's why 1 covalent bond

hope it helps!!

One possible geometry for the complex formed between manganese and OH with a charge of -3, where the oxidation state of manganese is +3, is octahedral geometry.  In an octahedral complex, the central manganese atom is surrounded by six ligands, in this case, the OH ligands.

Each OH ligand acts as a monodentate ligand, meaning it binds to the central manganese atom through a single oxygen atom. The negative charge of -3 indicates that there are three OH ligands in the complex.

In an octahedral geometry, the six ligands are arranged symmetrically around the central manganese atom, forming an octahedron. The OH ligands occupy the six corners of the octahedron. This arrangement provides maximum symmetry and minimizes repulsion between the ligands.

Learn more about monodentate ligand here: brainly.com/question/8961756

#SPJ11

When you are close to tobacco smoke sources, you may unintentionally breathe in secondhand smoke, often known as passive smoking.

For instance, you might interact with smokers at events or gatherings where smoking is permitted. Even though you might not notice any changes, secondhand smoke exposure can be harmful to your health.

It's not simply uncomfortable for your friends and family when they inhale your secondhand smoke; this is what we refer to as passive smoking. It can also be harmful to their health.

Regular secondhand smoke exposure increases the risk of developing heart disease and lung cancer, two diseases that smokers are more prone to develop.

Smoking tobacco products both actively and passively as well as exposure to some hazardous chemicals are the two main causes of lung cancer. Smoking tobacco most certainly causes respiratory issues, mouth and lung cancer, and both.

To know more about involuntary smoking, click on the link below:

https://brainly.com/question/26794537

#SPJ9

The amount of aluminum needed to react completely with 4.5 mol of FeO would be 80.94 grams

From the equation of the reaction, the mole ratio of FeO and Al is 3:2.

Thus, with 4.5 mol of FeO, the equivalent mole of Al required for complete reaction would be:

2/3 x 4.5 = 3.0 mol

Since the molar mass of Al is given as 26.98, the mass of 3.0 mol Al can be deduced as:

Mass = mole x molar mass

        = 3 x 26.98

       = 80.94 grams

In other words, the mass of aluminum needed to react completely with 4.5 mol of FeO is 80.94 grams.

More on stoichiometric problems can be found here: https://brainly.com/question/14301905

#SPJ1

Answer:

2.22 hours (or 2 and 2/9)

Explanation:

Divide the distance you want to travel by the constant speed.

t = time

d = distance

s = speed

t = d/s

t = 100 miles/45mph

t = 2.22 h

Pyramid of energy has not an advantage: B. Assigning the decomposers and detritivores to a particular trophic level.

Pyramid of energy is a graphical representation of the amount of energy at each trophic level of a food chain (see the picture below).

The bottom level represents the producers, followed by primary, secondary and tertiary consumers.

The decomposers and detritivores do not have a particular trophic level.

Decomposers break down dead plants and animals into simpler inorganic substances.

Detritivores are organisms, for example a fungus or an earthworm, that are decomposing organic matter.

Decomposers have very important role in the circle of life.

More about the pyramid of energy: brainly.com/question/17791689

#SPJ4

Answer:

b. Assigning the decomposers and detritivores to a particular trophic level.

Explanation:

Answer:

A.All Mixtures Are Made Up Of Solutions

Explanation:

The relationship between transmittance (T) and absorbance (A) is given by the equation:

A = -log10(T)

To find the corresponding absorbance values at the two ends of the scale, we can substitute the transmittance values into the equation.

For 0.0010 % transmittance:

A = -log10(0.0010)

For 100 % transmittance:

A = -log10(1)

Since the log of 1 is 0, the absorbance at 100 % transmittance is 0.

Calculating the absorbance values for the given transmittance values will provide the corresponding values at the two ends of the scale.

Know more about transmittance here;

https://brainly.com/question/15692537

#SPJ11

Answer: The rate constant is the reaction rate divided by the concentration terms.

Answer

0.009 mol/L

Explanation

Given:

Mass of KCl = 0.66 g

Volume of water = 700 mL = 0.7 L

From the periodic table: 1 mol K = 39.10 g; 1 mol Cl = 35.453 g

What to find:

The molarity of the solution

Step-by-step solution:

The formula to calculate molarity is:

The first step is to calculate the molar mass of KCl

KCl = Mass of 1 mol K + Mass of 1 mol Cl

KCl = 39.10 g + 35.453 g

KCl = 74.553 g

So the molar mass of KCl = 74.553 g/mol

The next step is to determine the number of moles of KCl in 0.66g of KCl:

Put the values of mole and volume into the molarity formula above to determine the molarity of the solution:

The molarity is 0.009 mol/L

Answer:

a) exothermic

b) the amonut of oxygen in one mole of oxygen is the same as that in 1 mole of sulphur dioxide

Ideal gas law is used to solve this. 62 L  is the volume of 2.3 mol Chlorine  gas at 290 K and 0.89 atm.

Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space filled within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water required to refill a bottle, aquarium, or water tank.

PV = nRT

n = 2.3 mol, T = 290 K and P = 0.89 atm.

V = n RT/ P

V = 2.3 mol × 0.082 × 290 /0.89

V = 62 L

To know more about volume, here:

https://brainly.com/question/13338592

#SPJ1

The weight percent of copper in bornite is approximately 63.316%.

The weight percent of copper (Cu) in bornite (Cu5FeS4) can be calculated by considering the atomic masses of copper (Cu), iron (Fe), and sulfur (S) and using the formula:

\(\[\text{{Weight percent of Cu}} = \frac{{\text{{Atomic mass of Cu}} \times \text{{Number of Cu atoms}}}}{{\text{{Formula mass of Cu5FeS4}}}} \times 100\%\]\)

Given that the atomic mass of Cu is 63.546 g/mol, the atomic mass of Fe is 55.845 g/mol, the atomic mass of S is 32.065 g/mol, and the formula mass of Cu5FeS4 is 501.849 g/mol, we can substitute these values into the formula:

\(\[\text{{Weight percent of Cu}} = \frac{{5 \times 63.546}}{{501.849}} \times 100\%\]\)

Simplifying the calculation gives:

\(\[\text{{Weight percent of Cu}} = 63.316\%\]\)

Therefore, the weight percent of copper in bornite is approximately 63.316%.

To calculate the gross value of the mining operation, we multiply the weight of the ore body (20,000,000 tons) by the cost per ton ($85):

\(\[\text{{Gross value}} = \text{{Weight of ore body}} \times \text{{Cost per ton}}\]\)

\(\[\text{{Gross value}} = 20,000,000 \times 85 = \$1,700,000,000\]\)

The expenses for the mining operation can be calculated by multiplying the weight of the ore body (20,000,000 tons) by the cost per ton ($85):

\(\[\text{{Expenses}} = \text{{Weight of ore body}} \times \text{{Cost per ton}}\]\)

\(\[\text{{Expenses}} = 20,000,000 \times 85 = \$1,700,000,000\]\)

The net value (profit or loss) of the mining operation can be obtained by subtracting the expenses from the gross value:

\(\[\text{{Net value}} = \text{{Gross value}} - \text{{Expenses}}\]\)\(\[\text{{Net value}} = \$1,700,000,000 - \$1,700,000,000 = \$0\]\)

Therefore, the net value of this mining operation is zero, indicating that there is neither profit nor loss.

Learn more about mining operation from this link:

https://brainly.com/question/32221527

#SPJ11

Answer:

7

Explanation:

4+3-2+2+-5x6 to the power of 2 minus 17=7

According to ideal gas equation, 0.122 moles of nitrogen are produced by the reaction.

The ideal gas equation is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.The law was proposed by Benoit Paul Emile Clapeyron in 1834.The ideal gas law is applicable to ideal gases.The graph of ideal gas equation is a straight line passing through the origin.

Substituting the values of P=1 atmosphere, V= 278 liters,R= 8.314, T= 273 K in the above equation that is n=PV/RT=1×278/8.314×273=0.122 moles.

Thus, 0.122 moles  of nitrogen are produced by the reaction.

Learn more about ideal gas equation,here:

https://brainly.com/question/28837405

#SPJ2

answer: bits of rock rusting when exposed to oxygen and water

Explanation: i think because when it rains the water is left and freezes and night making the rock expand or start to Rust

Answer:

Explanation:

what are the statments i can't help till i have the posable answers