What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr203 with 8.00 g of aluminum according to the chemical equation below? 2AI + Cr203 - Al203+2Cr Multiple Choice 273 9 30.8 g 15.4 g 17 9 49.9 g

Q: Complete the following acid-base reaction and write the complete ionic equation for the reaction: (Y...

A: Acid-Base reactions are those reactions in which an acid reacts with base to form salt and water. Ac...

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A: Given,  The molarity of a concentrated solution of sulfuric acid with a specific gravity of 1.84 and...

Q: [N:(g) + 3B12(g) = 2NB1:(g); AH = -103.7 kJ] Consider this reaction. What will 1 happen if pressure ...

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Q: HO (i) (R)-2-bromobutane 25 C 25"C ) ()-3-Bromo-3-methylhexane MeOH (k) (5)-2-Bromooctane MeOH, 60°C

A: SN2 Nucleophilic substitution via second order Strong nucleophile+ good leaving group+ primary or se...

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Q: A hydrocarbon of unknown structure has the formula C8H10. On catalytic hydrogenation over the Lindla...

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Q: Enter your answer in the provided box. Calculate the standard entropy change for the following react...

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Q: Phenolphthalein has a pKa of 9.7 and is colorless in its acid form and pink in its basic form. For ...

A: Given value from the question, pH= 7.7 pka=9.7  

Q: Determine the number of molecules in 28.6 grams of SO₂.

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Q: What is the rate of reaction in terms of C in the following reaction: A + B 2 C. O a. +A[C]/2At O b....

A: Reaction  A + B ——————> 2C  

Q: Determine the [OH ], [H3O*], pH and pOH in a 1.0 x 103 M Ba(OH)2 solution.

A:

Q: How many grams of ethylene (C2H4) would have to be burned to produce 450 kJ of heat = -1411 kJ/mol C...

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Q: Assuming that the smallest measurable wavelength in an experiment is 0.710 fm, what is the maximum m...

A: given :-  wavelength = 0.710 fm   speed = 171 m.s-1  To calculate :-  mass of an object (in kg)

Q: 4- Titrimetric methods : are quantitative methods that are based on determining the mass of a pure c...

A: This is basically statement of gravimetric analysis

Q: Be sure to answer all parts. The reaction between aluminum and iron(III) oxide can generate temperat...

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Q: en the thermochemical equation 2S02(g) + O2(g) – 2SO3(g), AH°rxn-198 kJ/mol, how much heat is evolod...

A: Answer and explanation is given below hope you like it.

Q: 12.62 A solution of 2.50 g of a compound having the empirical formula C,H,P in 25.0 g of benzene is ...

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Q: 1. As you can see in Fig. 1(C), there is an interaction between A475 on SARS-CoV-2 and S19 on ACE-2....

A: The attraction forces between the different molecules are known as intermolecular forces.

Q: Which of the following is NOT true about equivalence point and endpoint? O a. The endpoint approxima...

A: Titration is a method to determine the concentration of an unknown solution by using the solution of...

Q: When 0.7521 g of benzoic acid was burned In a calorimeter contalning 1,000. g of water, a temperatur...

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Q: What mass of solid magnesium phosphate is formed when 250mL of 0.225 M magnesium hydroxide are mixed...

A: when 250mL of 0.225 M magnesium hydroxide are mixed with 150 mL of 0.150M phosphoric acid. To find :...

Q: 12.46.Explain why molality is used for boiling-point elevation and freezing-point depression calcula...

A: Molarity is number of moles of solute in volume of solution (L)  Molality is number of moles of solu...

Q: Answer the following questions in vour lab notebook for prep work. The questions ask you to think ab...

A: The above problem is a lab experiment of diffusion of iodine and starch in a bag that is floating in...

Q: For the reaction: A(g)+1/2B(g)→2C(g). A) When C is increasing at a rate of 3.5×10−2 mol L−1 s−1 , h...

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Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 1.35 g o...

A: According to mole concept, one mole of a substance = One gram molecule = GMW = N molecules Further, ...

Q: Solve all parts otherwise I will downvote

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Q: 5. Calculate the vapor pressure of water above a solution prepared by adding 22.5 g of lactose (C12H...

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Q: Draw the structure of the product/s in each of the following rea Provide your final answers in the s...

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Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

A: A bicyclist is stopped at a entrance to a valley we have to determine P.E , K.E , T.E

Q: What is the difference of using toluene, hexane, and dichloromethane as solvents in SN2 reactions? ...

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Q: What is the Molarity of a hydrochloric acid solution that has a volume of 1800 mL and contains 441 g...

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Q: 2. A gas sample is found to contain 39.10% Carbon, 7.67% Hydrogen, 26.11% Oxygen, 16.82% P, and 10.3...

A: Given amount of elements are as follows C = 38.10% H = 7.67% O = 26.11% P = 16.82% F = 10.30% Atomic...

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have...

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Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first st...

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: A chemist determines by measurements that 0.035 moles of hydrogen gas participate in a chemical reac...

A: Given,  Moles of hydrogen gas participate = 0.035 mol.  The mass of hydrogen gas participate is:

Q: How is the solubility of oxygen in water affected by increasing temperature

A:                                   Answer    How is the solubility of oxygen in water affected by inc...

Q: Methane burns and give off 192 Kcal/Mol, assuming 90% effeciency in heat transfer. what mass in KG o...

A: Answer: In the process of heating up ice, there will be three steps,  1. Heating of ice up to its me...

Q: Enter your answer in the provided box. 38 The atomic masses of the twe stable isotopes of chlorine, ...

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Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: At equilibrium, Qc is EQUAL to Kc. * Determine if the capitalized word makes the statement correct. ...

A: Chemical equilibrium:

Q: 2. How would you carry out each of the following syntheses? Each may require more than one step.

A: Please see the attachment

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: A Where would the bicyclist h...

A: The potential energy is the point at which the bicyclist has the highest energy. It is at point F. T...

Q: a 232.8mL sample of 2.453 M AgNO3 (aq) was allowed to react with an excess of Na2S(aq). how many mol...

A:

Q: What is the pOH of a solution that has a pH of 9.9?

A: Here we have pH = 9.9 We have to find pOH .

Q: 12.49.Explain why it is essential that fl uids used in intravenous injections have approximately the...

A: Answer of 12.49 is given below

Q: The following reaction is known to have a very large equilibrium constant. 4 NH3(g) + 5 O2(g) 4 NO(g...

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Q: r answer below the formula. Identify the classification of each structural formula of biomolecules. ...

A:   Biomoelcules:   All living bodies are composed of several lifeless substances which are present in...

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Q: A 8.00 L tank at 4.12 °C is filled with 11.7 g of chlorine pentafluoride gas and 14.1 g of boron tri...

A: Partial pressure of chlorine pentaflouride PV = nRT   P= ?  V = 8L  n = 11.7/130.4 = 0.089  R = 8.31...

Q: a) Why do oxygen atoms exist longer at 120-km altitude than at 50-km altitude?

A: At higher altitude oxygen atoms exists longer.

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".