Vaska's complex, trans-IrCl(CO)(PPh3)2, reacts readily with dioxygen, to give a complex in which the 0-0 bond remains intact. (i) Draw the structures of both starting and product complexes. (ii) What type of reaction is this and what is the oxidation state and valence electron count (VEC) of the metal in both complexes? i) Although the 0-0 bond remains intact in the product complex, it is significantly elongated compared to the 0-0 bond in free 02. Explain this observation. (iv) In the IR spectrum of Vaska's complex, the v(CO). stretching frequency is observed at 1967 cm 1, whereas in the product complex it is observed at 2015 cm 1 Explain these observations. (v) This reaction is reversible. Suggest reaction conditions that favour the reverse reaction.

Answer:

BLOOD - the definition of blood is the fluid carries oxygen

Explanation:

sana po makatulong♡♡

Answer:

V = 0.0496 L

Explanation:

Given that,

The mass of a sample, m = 352.2 g

The density pf sample, d = 7.10 g/mL

We need to find the volume of the sample. We know that the density of an object is given by :

\(d=\dfrac{m}{V}\\\\V=\dfrac{m}{d}\\\\V=\dfrac{352.2}{7.1}\\\\V=49.6\ mL\)

or

V = 0.0496 L

So, the volume of the sample is 0.0496 L.

Answer:

I know Z

Explanation:

because here is mixing two substance so there is mixture

Answer:

Mass and volume are extrinsic properties.

A pail may contain water that is  1 kg  in mass and  1 L  in volume.

A drop of water may be  1 g  in mass and  1 mL  in volume.

Both are water, but they have different mass and volumes. Therefore you can't identify whether a substance is water just by measuring its mass and volume.

However, the ratio of the mass to volume (density) can be used to identify substances.

Answer:

13.7

Explanation:

Ten transition metals along with their respective atomic masses:

1. Scandium (Sc) - Atomic Mass: 44.9559 u

2. Titanium (Ti) - Atomic Mass: 47.867 u

3. Vanadium (V) - Atomic Mass: 50.9415 u

4. Chromium (Cr) - Atomic Mass: 51.9961 u

5. Manganese (Mn) - Atomic Mass: 54.9380 u

6. Iron (Fe) - Atomic Mass: 55.845 u

7. Cobalt (Co) - Atomic Mass: 58.9332 u

8. Nickel (Ni) - Atomic Mass: 58.6934 u

9. Copper (Cu) - Atomic Mass: 63.546 u

10. Zinc (Zn) - Atomic Mass: 65.38 u

Transition metals are elements found in the d-block of the periodic table. They exhibit characteristic properties such as the formation of colored compounds, variable oxidation states, and the ability to form complex ions.

These metals often have multiple stable oxidation states due to the availability of different energy levels within their d-orbitals. This property allows them to form a wide range of compounds and exhibit various chemical behaviors.

Transition metals also have high melting and boiling points, good thermal and electrical conductivity, and are often malleable and ductile.

Their atomic masses vary depending on the specific isotope of the element, which may have a different number of neutrons. The atomic mass represents the average mass of all naturally occurring isotopes of an element, taking into account their relative abundance.

These transition metals play vital roles in various industrial processes, including catalysis, electronics, alloys, and the production of pigments and dyes. Their unique properties and versatility make them important elements in many fields of science and technology.

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Answer:

red beryl

Explanation:

Red Beryls = Density range is 2.63g/cm3 to 2.92 g/cm3

Rubies = Density Range is 3.9 g/cm3 to 4.1 g/cm3

Mass of stone = 4.35 g

Volume of solid = change in water level = 1.5 mL = 1 cm3

Relationship between mass, volume and density is given by;

Density = Mass / Volume

Density = 4.35 / 1.5 = 2.9 g/cm3

The density of the stone falls in the red beryls range hence it is a red beryl.

Answer:0.25M

Explanation:x(.40)=(.20)(.50)

.10/.40=0.25

Answer:

Electromagnetic force

Explanation:

The attraction forces that causes the compression of the atom leading the to decrease in Atomic Radius is "Electromagnetic force".

Electrons (negatively charged) are strongly bonded with the nucleus (positive nucleus) by electromagnetic force. Electromagnetic force allows the electrosn to move in a specific orbit around the nucleus.

Atomic radius decreases from left to right in a periodic table because when valence electrosn are added at the same time the number of protons in nucleus increases. This increases the nuclear charge that attracts the electrons more strongly towards the nucleus and decreases the atomic radius.

Hence, the correct answer is "electromagnetic force".

Answer:

\(thank \: yo\)

The pOH of the solution given that K = 8.48 x 10⁻¹⁴ at this temperature is 5.07 at 50°C.

The given solution has a pH of 7.5 at 50°C. The first step in finding the pOH of this solution is to convert the pH into the concentration of hydronium ions ([H3O+]).The formula relating pH and [H3O+] is: pH = -log[H3O+]. Rearranging this formula gives: [H3O+] = 10^-pH.

Substituting the value of pH given: [H3O+] = 10^-7.5At 50°C, K = 8.48 x 10^-14, which is the equilibrium constant for the ionization of water, given by: K = [H3O+][OH-]/[H2O]. The concentration of hydroxide ions can be found by rearranging the above equation:[OH-] = K/[H3O+]Substituting the values of K and [H3O+] into the equation gives:[OH-] = 8.48 x 10^-14/10^-7.5Simplifying: [OH-] = 8.48 x 10^-6 mol/L.

The pOH can be found from the concentration of hydroxide ions using the formula: pOH = -log[OH-]. Substituting the value of [OH-]: pOH = -log(8.48 x 10^-6). Calculating this gives: pOH = 5.07Therefore, the pOH of the solution is 5.07 at 50°C.

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In the aldol condensation, you may have noticed a water-clear yellow colour, which means the reaction has either finished or is almost finished.

Due to the creation of a suspension of the starting reactants, which are commonly aldehydes or ketones, the mixture in the aldol condensation reaction first appears murky or milky. The beta-hydroxyaldehydes or beta-hydroxyketones, which are the reaction's end products, start to form as the reaction moves forward.

The disappearance of the raw reactants and the production of coloured intermediates or finished goods may be to blame for this colour change. A different explanation for the color shift is the elimination of impurities or byproducts that were in the starting ingredients or that were produced during the reaction.

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The intermolecular force is always stronger at the surface of a liquid than in the middle of the liquid because of the cohesive force present in the liquid molecule.

Surface tension of a liquid is the energy required to increase the surface area of a liquid by a unit of area. This surface tension in a liquid results from an imbalanced intermolecular forces, which is known as cohesive forces. The cohesive force is defined as the action of property of molecules, which sticks to one another due to the mutual attraction.

In the middle of the liquid, a molecule in the bulk liquid experience cohesive force. It experiences cohesive force with other molecules in the all directions. At the surface of a liquid, a liquid experiences net inward cohesive forces.

On the surface of a liquid, one molecule is not surrounded by other molecule. In the middle of a liquid, unbalanced attraction pull the molecules in a backward direction.

Therefore, the intermolecular force is always stronger at the surface of a liquid than in the middle of the liquid due to the cohesive force.

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Molarity is a unit of concentration that expresses the number of moles of solute per liter of solution. To calculate the molarity of a solution made by diluting a concentrated solution, you can use the following formula:

Molarity = moles of solute / liters of solution

First, you have to calculate the number of moles of solute in the original solution, you can use the formula:

moles of solute = molarity x liters of solution

moles of solute = 18.0 M x 0.3 L = 5.4 moles

Then, you can use this value to calculate the molarity of the dilute solution:

Molarity of dilute solution = moles of solute / liters of solution

Molarity of dilute solution = 5.4 moles / 3.5 L = 1.54 M

So, the dilute solution has a molarity of 1.54 M.

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1. The empirical formula for the sweetener is C₅H₆O

2. The molecular formula for the sweetener is C₁₀H₁₂O₂

The empirical formula for the sweetener can be obtained as follow:

Divide by their molar mass

C = 3 / 12 = 0.25

H = 0.3 / 1 = 0.3

O = 0.8 / 16 = 0.05

Divide by the smallest

C = 0.25 / 0.05 = 5

H = 0.3 / 0.05 = 6

O = 0.05 / 0.05 = 1

Thus, the empirical formula is C₅H₆O

The molecular formula for the sweetener can be obtained as follow:

Molecular formula = empirical × n

Molecular formula = mass number

Thus,

Empirical × n = mass number

[C₅H₆O]n = 164

[(12 × 5) + (1 × 6) + 16]n = 164

[60 + 6 + 16]n = 164

82n = 164

Divide both sides by 82

n = 164 / 82

n = 2

Molecular formula = [C₅H₆O]n

Molecular formula = [C₅H₆O]₂

Molecular formula = C₁₀H₁₂O₂

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a) vapor, b) saturated liquid, c) saturated liquid, d) compressed liquid, e) compressed liquid, f) compressed liquid, g) compressed liquid, h) compressed liquid.

The phase of substances in different states using Thermodynamic Properties Tables (in Appendix B) is given below:

a) The phase of water at 60∘C and 60kPa is vapor.

b) The phase of water at 100∘C and 60kPa is saturated liquid.

c) The phase of water at 100∘C and 500kPa is saturated liquid.

d) The phase of water at 25∘C and 120kPa is compressed liquid.

e) The phase of ammonia at -25∘C and 120kPa is compressed liquid.

f) The phase of ammonia at 25∘C and 120kPa is compressed liquid.

g) The phase of R-134a at -25∘C and 120kPa is compressed liquid.

h) The phase of R-134a at 25∘C and 120kPa is compressed liquid.

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Mammoth Cave NP contains deposits of potassium nitrate (KNO3) that were used in the past to produce saltpeter, an important ingredient in gunpowder. These nitrate deposits were exploited extensively (and virtually exhausted) to support military action during the War of 1812.

Mammoth Cave NP contains deposits of potassium nitrate (KNO3) that were used in the past to produce saltpeter, an important ingredient in gunpowder. These nitrate deposits were exploited extensively (and virtually exhausted) to support military action during the War of 1812.The park is 211.26 square kilometers in size and has approximately 400 miles of surveyed caves. The longest cave system in the world is located here.

Mammoth Cave was established in 1941 as a national park. Since then, scientists have discovered that Mammoth Cave National Park's cave system is among the most biologically diverse in the world. Mammoth Cave National Park has been designated a UNESCO World Heritage Site and a Biosphere Reserve as well. So therefore these nitrate deposits were exploited extensively (and virtually exhausted) to support military action is during the War of 1812.

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Answer:

| EarthSky

Photographers take star trail photos by pointing their cameras at the sky and leaving the shutter open for long exposures, resulting in an image that ...

https://earthsky.org › tonight › circu...

Answer:

wood burning in the presence of moist air

Explanation:

it can cause an air pollution

Answer:

huh

Explanation:

Answer:

1. thermometer

2. thermal energy

3. specific heat

4. temperature

5. Celsius

6. heat

7. mass

The correct statements that describe the mechanism of the SN1 reaction are A carbocation intermediate is formed in an SN1 reaction. The SN1 reaction involves a single step.

The SN1 reaction, the leaving group leaves to form a carbocation intermediate, which is then attacked by a nucleophile to form the product. Hence, statement (c) is correct. The SN1 reaction proceeds through a carbocation intermediate, which is a planar species with no stereochemistry. Therefore, there is no stereospecificity in the reaction, and both retention and inversion of stereochemistry are observed for reaction at a SteriGenic center. Hence, statement (b) is incorrect. In an SN1 reaction, the bond to the leaving group is broken first, leading to the formation of a carbocation intermediate. The nucleophile then attacks the carbocation to form the product. Hence, statement (d) is incorrect. The SN1 reaction involves two steps - the formation of a carbocation intermediate and the attack of the nucleophile on the carbocation. Hence, statement (e) is incorrect. The rate of the SN1 reaction is affected by the concentration of the nucleophile, as the nucleophile attacks the carbocation intermediate. Hence, statement (a) is incorrect.

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The concentration of the conjugate base (KF) at the equivalence point after the initial neutralization is 0.1686 M.

we need to first write out the balanced chemical equation for the reaction between KOH and HF:

KOH + HF → KF + H₂O

We can see from this equation that KOH and HF react in a 1:1 ratio. So, if 22.96 mL of 0.1 M KOH was added to 20.00 mL of 0.362 M HF, then all of the HF would be neutralized and the reaction would be complete.

To determine the concentration of the conjugate base (KF) at the equivalence point, we need to use the stoichiometry of the balanced equation. Since KOH and HF react in a 1:1 ratio, the moles of KOH added to the solution will be equal to the moles of HF in the solution;

moles of KOH = volume of KOH (in L) x concentration of KOH (in mol/L)

= 0.02296 L x 0.1 mol/L

= 0.002296 mol

moles of HF = volume of HF (in L) x concentration of HF (in mol/L)

= 0.02000 L x 0.362 mol/L

= 0.00724 mol

Since the reaction is complete at the equivalence point, all of the HF has been converted to KF. Therefore, the moles of KF produced will be equal to the moles of HF initially present in the solution;

moles of KF = moles of HF = 0.00724 mol

Finally, we can use the volume of the solution at the equivalence point to calculate the concentration of KF;

volume of solution = volume of KOH + volume of HF

= 0.02296 L + 0.02000 L

= 0.04296 L

concentration of KF = moles of KF/volume of solution

= 0.00724 mol / 0.04296 L

= 0.1686 M

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Answer:

Systems thinking allows us to understand all the parts that make up the whole system.

Explanation:

Just took the test

The systems thinking important because, Systems thinking allows us to understand all the parts that make up the whole system. Therefore, option C is correct.

By considering the world's complexity in terms of links and entire rather than breaking it down into its component components, systems thinking helps us make sense of how complicated the world is. It has been applied as a method for investigating and producing efficient action in challenging situations.

By using a deeper grasp of the surrounding structure and its constituent parts rather than relying just on previous events, systems thinking gives a technique to more accurately forecast future outcomes.

Systems thinking is a discipline in management that focuses on understanding a system by looking at the connections and interactions between the different parts that make up the entire of that defined system. The concept of the "entire system" is a way of looking at an entire organization in relation to its surroundings.

Thus, option C is correct.

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Answer:

The data are inadequate.

Explanation:

In the given question, there are fifteen players on the team.

But Diana and Kinsey survey only the five players on the starting lineup about their favorite mascot.

Based on only a few players out of the total number of players, both Diana and Kinsey can't choose a mascot for the basketball team.

So, the data are inadequate.

Answer: the information is inadequate

Answer:

348 g FeCO3

Explanation:Use your 3 mol's and find the atomic number of Iron II and CO3 which i think is 115.854 so you multiply it by the 3 and that should give you your grams in FeCO3.

Answer:

4.949 g

Explanation:

One mole of any substance has 6.022 x \(10^{23}\) atoms or particles.

Setting up ratio between moles and atoms:

Moles    :    Atoms

  1          :     6.022 x \(10^{23}\)

  X         :     2.98 x \(10^{22}\)

X = (2.98 x \(10^{22}\))/(6.022 x \(10^{23}\))

X = 0.049 moles

The molar mass of KNO3 is : 39 + 14 + ( 16 x 3 ) = 101 g/mol

Moles   :   Mass

  1          :    101

  0.049  :      X

X = 0.049 x 101

X = 4.949 g

Answer:

54L

Explanation: