Assume that you used a 0.680 g piece of pure aluminum in the synthesis of alum and obtained a 83.5% yield of alum. How many grams of alum did you obtain?

Q: volume

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Q: mass

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Q: wo volatile substances, A and B are dissolved in one another and the resulting solution has a vapor ...

A: Given : Mole fraction of B = 0.230  Mole fraction of A = 1-B = 1-0.230 = 0.77  

Q: A mixture of 4.41 g propane (C_{3}*H_{8}) and 6.40 g of oxygen (O_{2}) is ignited . What reactant is...

A: Answer: excess reactant - propane(C3H8) Carbon dioxide (CO2) formed = 5.28 g , Water (H2O) formed = ...

Q: What is a mixture is a combination of

A: To explain: A mixture is a combination of what?  

Q: Directions: Give the charge of the atoms. 1. 2. + + ++ ++ 3. + + + + ++

A: The number of protons and electrons in ions are given as,  

Q: Given that, in our bodies, when we metabolize molecules to derive energy from them, we are oxidizing...

A: Note : Energy is released when electron moves from low electron affinity center moves to high electr...

Q: H CO,Me 1. LDA 1. LDA THF-78°C THF-78°C 15. Br 2. EtBr 2. 90%

A: The reaction is as follows:  

Q: Br CH;SH

A: In protic medium Sn1 mechanism preferably occurs. At 1st step carbonation is formed after the loss o...

Q: Keeping in mind periodic trends, which is the strongest acid? O HCI О Her HI O HF

A: The correct option is:  

Q: A jogger runs a mile in 8.92 min. Calculate the speed in in/s.

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Q: Question 4 of 4 Use the table below to determine the AG,an for the following reaction at 39°C. N2(8)...

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Q: average kinetic kinetic energy of helium gas at 140.0 K is 1.74594 kJ/mol. What is the average kinet...

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Q: 2. The population of a country doubles in 50 years. HOW Imany juut habitants. 3. Radium decomposes a...

A: Amount of radium is decomposing with respect to time and is proportional to amount present. Half of ...

Q: Please show a detailed mechanism for the cleavage, in base, of propylene oxide, CH3-CH-CH2, to propy...

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Q: 3+ Calculate the pH of a 0.064-M Al (NO3); solution. The K, value for Al (H20)," is 1.4 x 10.

A: Concentration of Al ion = 0.064 M

Q: 2. Chlorine trifluoride is a colorless, poisonous, and corrosive gas. It is produced from the reacti...

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the ...

Q: Intravenous, or IV, solutions used in medicine must exert the same osmotic pressure as blood to prev...

A: Mass of NaCl = 0.9g Mol. Mass of NaCl = 58.5g/mol Volume of solution = 100ml i = Van't Hoff factor =...

Q: Conjugate acid Conjugate base

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Q: (S) +3O 2(g) 2Al 2 O 3 (s) How many grams of A*l_{2} * O_{3} can be formed from 93.54 g of Al and 29...

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Q: Calculate the time in minutes for the first order reaction A--->B to be 30.9% completed knowing the ...

A: Given Reaction:-  A    -------> B Reaction is first order.  Half-life, t1/2 = 220 min  

Q: The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an acti...

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Q: energy

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Q: A solution of iodine in carbon tetrachloride has a density of 3.22 g/mL and a concentration of 3.00 ...

A: (4)  Given that -  Density of solution of iodine in Carbon tetrachloride  = 3.22 g/mL  Concentration...

Q: Write the reaction rate expressions for the reaction below in terms of the disappearance of the reac...

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as t...

Q: „NH2 .COOH Aniline Benzoic acid Benzoic acid can be prepared from aniline via aryl diazonium ion. Wr...

A: Given : We have to tell how the following conversion will take place.

Q: Balance the below chemical reaction. Ec1H16 + O2 → → EcO2 + H2O In the correctly balanced equation, ...

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product...

Q: Explain in what circumstances (in other words, what kind of questions you would be answering) when y...

A: Answer -1

Q: b) OH Hemiacetal H3C D Compound D could be converted into a cyclic hemiacetal in the presence of an ...

A: Aldehydes on treatment with an alcohol in the presence of an acid produces hemiacetal.  

Q: Consider a chemical reaction between 5 Zn2+ (zinc cations in water) and 5 S2- (sulfide anions in wat...

A: Write a balanced chemical equation  reaction --

Q: Lightweight camping stoves typically use a mixture of Cs and C6 hydrocarbons, which is called white ...

A: Molecular mass of C5H12 = 72.15g/mol Enthalpy of combustion = -3550kJ/mol Volume of water = 1.5L Ti ...

Q: Provide a complete mechanism for the following reaction. Pay close attention to details, including l...

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Q: Calculate the column height needed in meters to generate a pressure of 100 kPa using: (a) water; (b)...

A: Pressure is a parameter that can be described as a force applied on a unit area. Therefore, it is ex...

Q: Write the mechanism of the aldol condensation between benzaldehyde and acetone

A: Aldehyde having alpha-hydrogen undergo self condensation in the base medium. The reaction is as foll...

Q: A typical vitamin C tablet (containing pure ascorbic acid, H2CgHgOg) weighs 500 mg. One vitamin C ta...

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Q: Give balanced net reaction for the synthesis of tert-butylamine borane

A: The reactions steps given are, 1) 2)  

Q: Chemistry Hello, I was wondering if anyone has suggestions for synthesizing the following molecule. ...

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Q: b) Which of the flowing reactions will have the faster rate and give a better yield? Use drawings of...

A: Solution -

Q: A 41.3-gram sample of a solution of naph- thalene, C10H8(s), in benzene, C6H6(l ), has a vapor press...

A: Given: Mass of sample = 41.3 g. Vapour pressure of solution = 63.9 Torr Vapour pressure of pure naph...

Q: An engine of

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Q: a) Propose a synthesis route to prepare the following product from the given starting material. Note...

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Q: At a certain temperature, the equilibrium constant K for the following reaction is 0.0039: Br,(g) + ...

A: This is a question from equilibrium.  We are to calculate the value of keq at various distance.

Q: At critical temp. which of the following graph is correct PV (A) PV (BY P > P> PV PV (D) P >

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Q: a) Ketoacid Z below can be synthesized from ethyl acetoacetate W via an acetoacetic ester synthesis....

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Q: What is the oxidation state on Ec in the formula below? Ec4O18

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we...

Q: Using the compound elements below. Find the following i. Non-Bonding and Bonding Domain ii. Molecu...

A: VSEPR theory: The structure of a molecule can be determined by using the VSEPR theory. According to ...

Q: The steam reforming reaction me thane follows this quemical equation= CHycg) + HzO g)→ Co g) + 3Hz c...

A: Soln

Q: 1. Atomic Structure. 106 a) 46 Pd*2 b) 232 92 U

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Q: 26. Write in the first two boxes on the left an equation using structural formulas for the reaction ...

A: The reaction between C3H8 (propane) and Cl2 (chlorine) is an example of substitution reaction where ...

Q: Give biosynthesis of Carvone from gerany|pyrophosphate in clear handwritten!......

A: Carvone is a naturally occurring ketone found in the essential oils of caraway, dill, and spearmint ...

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".