Chemistry concepts and calculations

7, which chemical equation has Kc Kp? A. CH,(g) + 2 H2O(g) CO2 + 4 H2(g) B. 2 NO

7, which chemical equation has Kc Kp? A. CH,(g) + 2 H2O(g) CO2 + 4 H2(g) B. 2 NO(g) N, (g) + O2(g) C, 2 SO2(g) + 02 (g) 2 SOg(g) D. PF3 (g) + F2 (g) PFs(g) 8. Which equilibrium sh…

7,8,9 please show you came to the answer 7. Consider a chemical reaction involvi

7,8,9 please show you came to the answer 7. Consider a chemical reaction involving compounds A and B, which is found to be first order in A and second order in B. Given the inform…

7,\"Reduction of Camphor\" Experiment (i) The products obtained from reduction o

7,"Reduction of Camphor" Experiment (i) The products obtained from reduction of camphor by NaBH4 produces two products, Borneo! and isoborneol, which one is a major product (1 poi…

7-9b 7. In the peocedure, a 4.00 g mass of NaOH is dissolved in 5.00 mL. of HiO

7-9b 7. In the peocedure, a 4.00 g mass of NaOH is dissolved in 5.00 mL. of HiO What is the approximate molar concentration of the Na041? b. In the procedure, a 4.00 mL aliquot of…

7-B. A solution of NaOH was standardized by gravimetric titration of a known qua

7-B. A solution of NaOH was standardized by gravimetric titration of a known quantity of the primary standard, potassium hydrogen phthalate CO,H cO Na 3 + NaOH CO,K CO,K Potassium…

7-B. A solution of NaOH was standardized by gravimetric titration of a known qua

7-B. A solution of NaOH was standardized by gravimetric titration of a known quantity of the primary standard, potassium hydrogen phthalate CO,H cO Na 3 + NaOH CO,K CO,K Potassium…

7. (1 pt) what is the equivalence point? What is the endpoint of a titration? Ho

7. (1 pt) what is the equivalence point? What is the endpoint of a titration? How do we know when we have reached the equivalence point when titrating KHP or the so pop sample wit…

7. (2 Points) What is the ability for a liquid to flow in a narrow channel or na

7. (2 Points) What is the ability for a liquid to flow in a narrow channel or narrow tube often against gravity, without the assistance of external forces. A) Viscosity B) capilla…

7. (2) Why is acetic acid needed for the reaction to take place? (Use a chemical

7. (2) Why is acetic acid needed for the reaction to take place? (Use a chemical equation to explain) 8.(2) Why is IR such a good method to assess the purity of the product of thi…

7. (2pts.) Bone consists of the protein collagen and the mineral hydroxyapatite,

7. (2pts.) Bone consists of the protein collagen and the mineral hydroxyapatite, Ca10(PO4)6(OH)2. The Pb content of archeological human skeletons measured by graphite furnace atom…

7. (4 pts.) The final product and the starting cyclohexanone are similar, and by

7. (4 pts.) The final product and the starting cyclohexanone are similar, and by looking at the structures you may wonder how you would be able to tell that reaction actually occu…

7. (4) Assumi triplet in the NMR s ng equivalent J values, which lettered proton

7. (4) Assumi triplet in the NMR s ng equivalent J values, which lettered protonís) of the following compound would occur as a pectrum? 0% 00% a. the proton(s) on carbon a. b. the…

7. (5 points) Which of the following are assumptions required to derive or use t

7. (5 points) Which of the following are assumptions required to derive or use the original GHK equation for (select all that are correct). a) The three ions must all be in equili…

7. (5 pts) (a) A 5-liter vessel is completely filled with pure H2O. If the tempe

7. (5 pts) (a) A 5-liter vessel is completely filled with pure H2O. If the temperature of the vessel is 35°C and the pressure is 1.5 bar, how many phases are there and how much of…

7. (8 pts) For the following transformations which are given in terms of microco

7. (8 pts) For the following transformations which are given in terms of microconstituents: indicate whether the transformation will go in the direction shown at the temperature g…

7. (a) Explain how signal amplification is achieved in enzyme-linked immunosorbe

7. (a) Explain how signal amplification is achieved in enzyme-linked immunosorbent assays. (b) What is the advantage of a time-resolved emission measurement with Eu3+ versus measu…

7. (a) In the peptide mass mapping technique, proteins can be identified with a

7. (a) In the peptide mass mapping technique, proteins can be identified with a high level of probability even with have low sequence coverage. Explain (b) Give some experimental …

7. (a) When you try separating an unknown mixture by reversed-phase chromatograp

7. (a) When you try separating an unknown mixture by reversed-phase chromatography with 50% acetonitrile/50% water, the peaks are too close together and are eluted in the range k …

7. -13 points The density of a noble gas is 0.536 g/L at 3.00 atm and 0°C. Ident

7. -13 points The density of a noble gas is 0.536 g/L at 3.00 atm and 0°C. Identify the gas. 8. -14 points My Notes When 0.677 L of Ar at 1.20 atm and 227°C is mixed with 0.272 L …

7. 0/1 points Previous Answers KatzPSEf1 20.P065 My Notes Ask Your Teache A life

7. 0/1 points Previous Answers KatzPSEf1 20.P065 My Notes Ask Your Teache A lifeguard pours chlorine into a pool and assumes it will eventually diffuse throughout the pool. Assumi…

7. 1 points Giancol6 5 P035 MyNotes Ask Your What is the distance from the Earth

7. 1 points Giancol6 5 P035 MyNotes Ask Your What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth is 1/2…

7. 1-propanol 0.090 L (60 g/mole, d = 0.81 g/mL) and 0.075 L acetic anhydride (6

7. 1-propanol 0.090 L (60 g/mole, d = 0.81 g/mL) and 0.075 L acetic anhydride (60 g/mole, 1.05 g/mL) are mixed in esterification reaction and catalyst used is 1.8 mL of sulfuric a…

7. 1/6 points | Previous Answers WertzCAMS3 4.P.012 Consider the following energ

7. 1/6 points | Previous Answers WertzCAMS3 4.P.012 Consider the following energy diagram for the valence orbitals of main group atoms A, B, and C. (Type your answer using the for…

7. 3 pts) Give an example of an aerosol. Each multiple choice is worth 3 points.

7. 3 pts) Give an example of an aerosol. Each multiple choice is worth 3 points. Write the answer on the li ne provided. For the reaction hich of the following expressions is equa…

7. 4 Points Give an example of a food processing treatment which results in prot

7. 4 Points Give an example of a food processing treatment which results in protein hydrolysis. Discuss the effects of the processing treatment on the 1°, 20, and 3° structure of …

7. A 13.5 g sample of gold is heated, and then placed in a calorimeter containin

7. A 13.5 g sample of gold is heated, and then placed in a calorimeter containing 60.0 g of water. Temperature of water increases from 19.00 °C to 20.00 ?. The specific heat of go…

7. A 4.00 g sample of AgNOs is reacted with BaClz according to the equation 06 2

7. A 4.00 g sample of AgNOs is reacted with BaClz according to the equation 06 2AgNC)(aq) + BaCl2(aq) 2AgCl(s) + Ba(NO2)2(aq) to give 1.85 g of AgCI. What is the percent yield of …

7. A balloon filled with 0.500 L. of air at sea level is submerged in the water

7. A balloon filled with 0.500 L. of air at sea level is submerged in the water to a depth that produces a pressure of 3,25 atm. What is the volume of the balloon at this depth? S…

7. A box of cookies can hold 24 cookies, and a container can hold 75 boxes of co

7. A box of cookies can hold 24 cookies, and a container can hold 75 boxes of cookies. Write a program that prompts the user to enter the total number of cookies, the number of co…

7. A hot piece of copper (heat capacity 0.385 J/g\'C) is submerged capacity = 2.

7. A hot piece of copper (heat capacity 0.385 J/g'C) is submerged capacity = 2.42 J/g°C). After a few minutes, the temperature equalizes (Tf) and is foun 32.0°C. The copper was or…

7. A liquid has a definite volume because a. the particles are close together b.

7. A liquid has a definite volume because a. the particles are close together b. the particles are free to move c. the particles interact. d. a liquid does not have a definite vol…

7. A patient with a provisional diagnosis of depression was sent to the laborato

7. A patient with a provisional diagnosis of depression was sent to the laboratory for a routine workup. The complete blood cell count was unremarkable except for an elevated eryt…

7. A patient with a provisional diagnosis of depression was sent to the laborato

7. A patient with a provisional diagnosis of depression was sent to the laboratory for a routine workup. The complete blood cell count was unremarkable except for an elevated eryt…

7. A procedure called coulogravimetric analysis combines a weight determination

7. A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze…

7. A small company borrowed $10,000 to expand their business. The entire princip

7. A small company borrowed $10,000 to expand their business. The entire principal of $10,000 will be repaid in two years, but interest payments of $330 must be paid every three m…

7. A solution is 5 mM in each of the following ions: Indicate which of the metal

7. A solution is 5 mM in each of the following ions: Indicate which of the metal ions would precipitate (or start to precipitate) at each of the following pH values. Indicate your…

7. A solution is 5 mM in each of the following ions: Indicate which of the metal

7. A solution is 5 mM in each of the following ions: Indicate which of the metal ions would precipitate (or start to precipitate) at each of the following pH values. Indicate your…

7. A student collected the initial-rate data in the chart below Experiment XO)l

7. A student collected the initial-rate data in the chart below Experiment XO)l assal rate of 0 20 What is the experimental rate law for this reaction? 5) rate pxof to The formati…

7. A student uses a miscalibrated graduated cylinder to measure the KI solution

7. A student uses a miscalibrated graduated cylinder to measure the KI solution in Part IIB. Each scale reading indicates a volume exactly 0.5 ml greater than is actually the case…

7. A waste material consists of sand (SG 2.7), a chemical salt (SG 2.1) and a de

7. A waste material consists of sand (SG 2.7), a chemical salt (SG 2.1) and a dense plastic (SG 1.4) 200 g of a representative sample from the material is found to have a density …

7. A water solution of sulfuric acid (H2SO4) has a density of 1.67 g/mL and is 7

7. A water solution of sulfuric acid (H2SO4) has a density of 1.67 g/mL and is 75 percent H250, by mass. How many moles of H2SO, are contained in 500. mL of this solution? Cobalt …

7. A weaker penetration of p orbital results in a. Stronger shielding of electro

7. A weaker penetration of p orbital results in a. Stronger shielding of electrons b. Weaker shielding of electrons c. Stronger attraction of electrons d. Weaker repulsion of elec…

7. Ah alr Washer can Work as a (a) filter only (b) humidifier only (c) dehumidif

7. Ah alr Washer can Work as a (a) filter only (b) humidifier only (c) dehumidifier only (d) all of the above 8. The relative humidity, during sensible heating (a) can increase or…

7. Al metal has a specific heat of 0.880 J/gram-degree C. How many joules of hea

7. Al metal has a specific heat of 0.880 J/gram-degree C. How many joules of heat are needed to heat 562grams of Al from 25.0oC to 95.0oC ? 8. The enthalpy of combustion of C2H6 i…

7. An electrolysis cell was constructed with two platinum electrodes in a 1.00 M

7. An electrolysis cell was constructed with two platinum electrodes in a 1.00 M aqueous solution of KCI, An odorless gas evolves from one electrode, and a gas with a distinctive …

7. An ideal parallel-plate capacitor consists of a set of two parallel plates of

7. An ideal parallel-plate capacitor consists of a set of two parallel plates of area A separated by a very small distance d. When the capacitor plates carry charges +Q and -Q, th…

7. An increase in solution pH corresponds to A) an increase in hydronium ion con

7. An increase in solution pH corresponds to A) an increase in hydronium ion concentration. B) a decrease in hydronium ion concentration. C) no change in hydronium ion concentrati…

7. An unknown gas has a density of 1.686 g/L when the pressure is 2.503 atm and

7. An unknown gas has a density of 1.686 g/L when the pressure is 2.503 atm and the temperature is 35.0 oC. What is the molecular weight of this gas? Note that the gas constant R …

7. Answer the following true/false questions about any general, arbitrary reacti

7. Answer the following true/false questions about any general, arbitrary reaction. a. as reactant particles approach each other before a collision, the potential energy goes down…

7. Answer the following true/false questions about any general, arbitrary reacti

7. Answer the following true/false questions about any general, arbitrary reaction. a. as reactant particles approach each other before a collision, the potential energy goes down…