excess reactant

Q: Compute the E°cell and determine whether spontaneous or not. A. Fe and Cu B. Pb and Cu C. Zn and Cu

A: Here we have to use the standard reduction potential table and need to calculate the standard cell p...

Q: Which of the following solutions, prepared by dissolving in water 0.50 mol of each substance at 1.0 ...

A: Buffer solutions are made by either mixing a weak acid and salt of its conjugate base or mixing a we...

Q: A 0.5 m aqueous solution of sugar was boiled. At what temperature did this temperature did it boil i...

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st ...

Q: phosphoric acid reacts

A: 3Cu + 2H3PO4>>>>Cu3(PO4)2 + 3H2

Q: 5. Solve the Q given the following : 200-g sample of an unknown substance changed, temp from 40°C to...

A:   Given : Mass = m = 200 gram  Final temperature  =  T1 =  25°c Initial temperature =  T2  = 40°c   ...

Q: но. 10 HO 11 12 H30* H,0 14 15 H3O* H,0 16 17 H3O* H,0

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Q: What metal ion is responsible for the red firework? Justify your answer.

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: Q17) Calculate the osmotic pressure of 25% of the urea solution at a temperature of (37°C). R=0.0821...

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Q: 2. A 0.8102-g sample of impure Al,(CO3)3 decomposed with HCI; the liberated CO, was collected in CaO...

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Q: 4. Which of the following solutions is a buffer? (A) 0.10 M CH3COOH and 0.10 MCH3COONa (B) 0.10 M...

A:                                Answer Weak acid and its conjugate base is called buffer solution

Q: alculate ΔSsys for the heating of 2.00 moles of nitrogen from 25ºC to 200ºC.

A: Entropy of system is given by the equation: ∆S = ∫ nCPTdT Initial temperature =  250C = 2980K  Final...

Q: Light of varying wavelength hits the surface of a metal. Match each wavelength of light with the obs...

A: When light strikes on a metal, electrons can be ejected from the surface of the metal in a phenomeno...

Q: The protein content of the unknown samples were determined using BSA as standard. The absorbance val...

A: Given data for standard:

Q: Give clear handwritten final major product only

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Q: 6. Enumerate and describe the types of precipitates. 7. How will you control the size of precipitate...

A: 6) Precipitation is the process of transforming a dissolved substance into an insoluble solid from a...

Q: The table below shows the temperature data for a corn field in the month of April. From thace data, ...

A: Growing degree units : During the growing season of plants and crops , it is the unit to monitor gro...

Q: 2. Aside from the experiments performed, give another five (5) examples of physical and chemical cha...

A: In the given question we have to write the examples of physical and chemical observed during the rea...

Q: methane burns readily in oxygen in a highly exothermic reaction yet a mixture of methane and oxygen ...

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Q: Be sure to answer all parts. The reaction of peroxydisulfate ion (S20g²-) with iodide ion (I ) is S,...

A: We can use initial rate to calculate rate law.

Q: Consider the following endothermic reaction at 345.0 °C HBr (g) = > H2 (g) + Bi2 (g) Kp=4.18×10^-9 A...

A: Equilibrium constant in terms of partial pressure ( Kp ) is the ratio of partial pressures of produc...

Q: *. In the temperature, concentration oc surfaco area were increased in the following scenario, hypot...

A: We know that according to le chatlier principle when we change anything at equilibrium in that case ...

Q: Enter your answer in the provided box. A sheet of gold weighing 10.0 g and at a temperature of 16.4°...

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Q: 9. The % w/w of I- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL o...

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Q: At a certain temperature the rate of this reaction is second order in SO, with a rate constant of 0....

A: Given, 2SO3(g) ➝ 2SO2(g) + O2(g) Reaction is a second order reaction. Initial concentration of SO3 =...

Q: Enter your answer in the provided box. Given the same reactant concentrations, the reaction Co(g) + ...

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Q: I. Observing pH Changes in Water and Buffer Solutions upon Addition of HCl and NaOH Solutions soluti...

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Q: 3. What is particulate gravimetry? When do we use this technique?

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Q: Give the product for the following reaction. CH,CH - 2 CH,OH H* OCH3 CH,CH,- -H OCH3 CH,CH,- -H ÓCH;...

A: Aldehyde react with methanol to form acetal.

Q: 4. What mass of Cu(10,); can be formed from 0.5000g of Cuso, SH,0?

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Q: 17. In the given reaction: Hzig) + Izg) = 2Hlg) Ke= 47.2 at 500'C. If the initial concentrations are...

A: Given data : 

Q: 2.08g of sodium hypochlorite is dissolved to make 140ml of solution. what is the pH?

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Q: A 25.0 mL volume of HCl solution of unknown concentration is titrated with a 0.172 M NAOH solution. ...

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Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of ...

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Q: How many grams of phenol should be used to prepare 240 g of a 5% (w/w) solution in water?

A: Formula used :-  W/W % = (Mass of phenol ÷ Mass of solution )×100%   

Q: For the reaction "P₄(s) + 6 Cl₂(g) → 4 PCl₃(l)", if 125 g of P₄ is reacted with 323 g of Cl₂, what m...

A: Phosphorus reacts with chlorine to form phosphorus trichloride. The equation for the balanced chemic...

Q: What exactly is SEO?

A:                                   Answer  What exactly is SEO its means  Search engine optimization 

Q: If the pressure value of a monatomic gas is 296.063atm, what is the value of the constant Rif the vo...

A: We know that Ideal gas equation as :                                        P V = n R T Given,      ...

Q: In solving the rate constant of a reaction, what will we use? Is it the final concentration or the i...

A: Rate constant is proportionality constant that expresses relationship between rate of the reaction a...

Q: How will you measure the volume of the Erlenmeyer conical flask?

A: Erlenmeyer conical flask is mainly used in chemistry labs during the process of titration. The titra...

Q: a. What is the mass of Fe3O4 in the sample? O 0.2291 g O 0.4817 g O 0.3212 g O 0.1018 g O 0.2141 g

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Q: 18. Consider the following reaction which has a has Ke = 0.054 at a certain temperature: PCISG) = PC...

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Q: For the cell: Al | Al+3 || Cu2+ | Cu Calculate E for the cell where [Cu*2] = 0.17 mol/L and = 0.27 m...

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Q: catalytic hydrogenation.

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Q: Identify the molecular partition function for a molecule that has three energy levels with energies ...

A: Molecular partition function q = ∑gie−Ei/kT  q = goe−Eo/kT + g1e−E1/kT + g2e−E2/kT

Q: 3. A 0.997-gram sample of chromium combines with 0.179 grams of nitrogen to form a binary nitride co...

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Q: Give a structure to match the name of each of the following compounds. - butanone -acetaldehyde

A: Ketones are functional groups whose name end with -one suffix and aldehydes are also functional grou...

Q: mL

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Q: What is the outcome of the reaction sequence shown in the box? 1. Base 2. Allylbromide H3CO 3. НСІ, ...

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