Chemistry concepts and calculations

1. ICH Drug development guidelines are included in, explain why: a. Q7 b. Q8 e.

1. ICH Drug development guidelines are included in, explain why: a. Q7 b. Q8 e. Q7, Q8, and Q9 d. Q8 and Q10 2. CFR 210 and 211 do apply to the manufacture of, explain why a. Drug…

1. INTRODUCTION The potential in an electrochemical cell, E, is related to the G

1. INTRODUCTION The potential in an electrochemical cell, E, is related to the Gibb's free energy change (AG) for the overall cell redox reaction: (1) AG n FE where n is the numbe…

1. Ideal gas law and molar mixing ratios a. CO2 molar mixing ratios are 400 ppmv

1. Ideal gas law and molar mixing ratios a. CO2 molar mixing ratios are 400 ppmv. What is this as a percent abundance? b. CFC-11 molar mixing ratios are 250 pptv. What is this as …

1. Identify and discuss three principles that you believe should be included in

1. Identify and discuss three principles that you believe should be included in an ethical computer use policy. Such principles should pertain to both employees and external custo…

1. Identify and discuss three principles that you believe should be included in

1. Identify and discuss three principles that you believe should be included in an ethical computer use policy. Such principles should pertain to both employees and external custo…

1. Identify each of the following as a measurements of length,area, volume, mass

1. Identify each of the following as a measurements of length,area, volume, mass, density, time or temperature: a)ns b)10.0 kg/m3 c) 1.2 pm d)750 km2 e) 83 K f) 4.0 mm3 2. Carry o…

1. Identify each of the following substances as a strong electrolyte, weak elect

1.     Identify each of the following substances as a strong electrolyte, weak electrolyte or non-electrolyte: a.     Saline solution (NaCl solution) b.     Distilled water c.    …

1. Identify if the energy exchange is work or heat. a. b. c. d. A ball rolling d

1. Identify if the energy exchange is work or heat. a. b. c. d. A ball rolling down a hill Water turning a turbine in a hydroelectric power plant Water being converted to steam in…

1. Identify the 2 ions that have the following ground state electron configurati

1. Identify the 2 ions that have the following ground state electron configurations of [Ne] - F- -Fe2+ -O2- -H+ -Fr+ 2. Consider the isoelectronic ions F and Na+. Using the equati…

1. Identify the change in state where S decreases. A) solid to liquid B) liquid

1. Identify the change in state where S decreases. A) solid to liquid B) liquid to gas C) solid to gas D) gas to solid 2. Which of the following processes has a S > 0? A) CH3OH…

1. Identify the charge of iron in the following iron-containing copound. (ex: +1

1. Identify the charge of iron in the following iron-containing copound. (ex: +1 or -1)   Fe(H2PO4)3 and Fe(NO3)2   2. Name the following compounds, including Roman numerals where…

1. Identify the conjugate acid/base pairs for the following reaction: HCO3^- (aq

1. Identify the conjugate acid/base pairs for the following reaction: HCO3^- (aq) + H2O(aq) arrow H2CO3(aq) + OH^- (aq) 2. The measure of the resistance to the flow of a liquid is…

1. Identify the following three elements. (Capitalization counts!) 2. Give the e

1. Identify the following three elements. (Capitalization counts!) 2. Give the electron configurations for the following atoms. Do not use the noble gas notation. Write out the co…

1. Identify the functional group clearly indicating the name corresponding to th

1. Identify the functional group clearly indicating the name corresponding to the letter,06 pts) H o H2N Which of these is the rate-determining step in the nitration of benzene? X…

1. Identify the oxidizing and reducing agent and determine in the following reac

1.    Identify the oxidizing and reducing agent and determine in the following reactions. Which reactant gets oxidized? Which reactant gets reduced? Pb + PbO2 + 2H+ + 2HSO4-    --…

1. Identify the radioactive particle that is described in each of the following:

1. Identify the radioactive particle that is described in each of the following: a. has the highest energy of all of the naturally occurring radioactive particles b. has the lowes…

1. Identify the reagent (and its concentration) that is used to confirm the pres

1. Identify the reagent (and its concentration) that is used to confirm the presence of each of the following b.Fe c. Zn 2. Confirmatory tests for the various ions are often color…

1. Identify the reagents you would need to make 3-(2-methylphenylbutanoic acid)

1. Identify the reagents you would need to make 3-(2-methylphenylbutanoic acid) via Grignard synthesis, and briefly describe your synthetic strategy. If any reagent you wish to us…

1. Identify the region with the longest wavelength. a) Xrays b) Ultraviolet c) V

1. Identify the region with the longest wavelength. a) Xrays b) Ultraviolet c) Visible d) Infrared e) Microwave 2. Identify the region with the highest energy. a) X rays b) Ultrav…

1. Identify the solute in each of the following solutions by circling it. a 60.0

1. Identify the solute in each of the following solutions by circling it. a 60.0 ml of ethyl alcobol and 30.0 ml. of methyl alcohol b. 55.0 ml. of water and 1.50 g of NaCI is the …

1. Identify the solute in each of the following solutions by circling it. a 60.0

1. Identify the solute in each of the following solutions by circling it. a 60.0 ml of ethyl alcobol and 30.0 ml. of methyl alcohol b. 55.0 ml. of water and 1.50 g of NaCI is the …

1. Identify the statements from the following list that describe chemical proper

1. Identify the statements from the following list that describe chemical properties. a Oxygen gas supports combustion b. "A can of paint thinner is left uncapped, and the odor fi…

1. Identify the types of intermolecular forces present in the following molecule

1. Identify the types of intermolecular forces present in the following molecules Diethyl ether: CH3CH2-O-CH2CH3 Butanol: CH3CH2CH2CH2OH Butane: CH3CH2CH2CH3 2. Rank the compounds…

1. Identity is a complex and dynamic concept. Discuss ways in which identities a

1. Identity is a complex and dynamic concept. Discuss ways in which identities are constructed. 2.What difficulties arise when trying to use the concept of race to discuss the pop…

1. If 0.125 M solution of a weak acid has the pH of 2.79, what is the percent io

1. If 0.125 M solution of a weak acid has the pH of 2.79, what is the percent ionization of this weak acid? i got 1.3%, is this right? 2. 25.00mL of a solution of formic acid, HCO…

1. If 0.25 g of kanamycin sulfate (mw = 582.60 g/mol) is dissolved in 50 ml of w

1. If 0.25 g of kanamycin sulfate (mw = 582.60 g/mol) is dissolved in 50 ml of water, what is the molar concentration? What is the % (w/v) concentration? 2. Luria-Bertani (LB) Bro…

1. If 0.321 moles of gas were generated by a reaction and collected in a 500.0 m

1. If 0.321 moles of gas were generated by a reaction and collected in a 500.0 mL evacuated flask. What would the pressure be in that flask at 295 K? 2. You fill a balloon with 0.…

1. If 120mL of a 6 MNaOH solution is diluted to a final volume of 200mL , what i

1. If 120mL of a 6 MNaOH solution is diluted to a final volume of 200mL , what is the resulting concentration of the solution? Express your answer to one significant figure and in…

1. If 14.95 mL of a 0.1250 M HCl solution is added to reach the endpoint of a ti

1. If 14.95 mL of a 0.1250 M HCl solution is added to reach the endpoint of a titration, how many moles of HCl have been added? 0.001869 moles 0.008361 moles 8.361 moles 0.1196 mo…

1. If 17 mL of 0.010 M NaOH(aq) solution is needed to neutralize 50 mL of HCl(aq

1. If 17 mL of 0.010 M NaOH(aq) solution is needed to neutralize 50 mL of HCl(aq) of an unknown molarity, what is the molarity of the HCl(aq) in the solution that was titrated? I …

1. If 20.00 mL of stock solution with concentration of 50.00 mgL-1 is diluted to

1. If 20.00 mL of stock solution with concentration of 50.00 mgL-1 is diluted to 100.00 mL, the dilute soluion will have a concentration of Select one: a. 10.00 mg per L. b. 25.00…

1. If 3.01g of the vapor of a volatile liquid is able to fill a 352-mL flask at

1. If 3.01g of the vapor of a volatile liquid is able to fill a 352-mL flask at 210C and 728mm Hg, what is the molecular weight of the liquid? **Write answer in decimal form to on…

1. If 50 g of KNO3 is completely dissolved in 100 g of water at 70 degrees Celci

1. If 50 g of KNO3 is completely dissolved in 100 g of water at 70 degrees Celcius, is the solution saturated, unsaturated, or supersaturated? 2. If 180 g of KNO3 is completely di…

1. If 58.5 moles of an ideal gas is at 1.85 atm at 17.80°C, what is the volume o

1. If 58.5 moles of an ideal gas is at 1.85 atm at 17.80°C, what is the volume of the gas? 2. If an ideal gas has a pressure of 7.33 atm, a temperature of 82.91°C, and has a volum…

1. If G° = -nFE° and G° = -RT ln Keq, derive the relationship between E° and K,

1. If G° = -nFE° and G° = -RT ln Keq, derive the relationship between E° and K, expressed as Keq = 2. If the reduction of Cl2 to 2 Cl-  has a potential of 1.3583 V and the reducti…

1. If H is the rate at which the universe expands in kmsMpc, then the Hubble tim

1. If H is the rate at which the universe expands in kmsMpc, then the Hubble time is t = 1H. Calculate the number of Hubble times in the age of the universe. Please give your answ…

1. If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the mo

1. If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be? 2. If I add water to 100 mL of a 0.15 M NaOH solution until the …

1. If a Fe stock solution has a concentration of 1.8 mg/mL, what is the concentr

1. If a Fe stock solution has a concentration of 1.8 mg/mL, what is the concentration when 2 mL of this stock solution is diluted to 50. mL? Keep 2 sig figs for the answer. 2. Wha…

1. If a drug decomposes according to first-order kinetics, what is its concentra

1. If a drug decomposes according to first-order kinetics, what is its concentration after one hour, if the half-life is 21 minutes? Express as a % of original concentration? ____…

1. If a metal begins with a +3 charge, which of the following charges would indi

1. If a metal begins with a +3 charge, which of the following charges would indicate that the metal has been oxidized? 2. 2Li(s)+F2(g)?2LiF(s) 3. Cl2(g)+2KI(aq)?2KCl(aq)+I2(s) 4. …

1. If a mixture contains 0.395 g NaCl, 0.470 g NH.CI, &0.851 g of SiO;, with due

1. If a mixture contains 0.395 g NaCl, 0.470 g NH.CI, &0.851 g of SiO;, with due reg significant figures, what is the mass percent of NaCI in the mixture? Show all wo rk &…

1. If a processor addresses a maximum of (2 to the power of 20) bytes of memory,

1. If a processor addresses a maximum of (2 to the power of 20) bytes of memory, then, what is the maximum number of 16-bit words that can be stored in this memory? 2. Convert the…

1. If a reactant is added to a reaction at equilibrium, which way will the react

1. If a reactant is added to a reaction at equilibrium, which way will the reaction shift to re-establish equilibrium (use forward or backward)? Why? 2.For an endothermic reaction…

1. If a representative element is in group VA of the periodic table, how many el

1. If a representative element is in group VA of the periodic table, how many electrons are there in the valence shell of that element? A. five electrons B. three electrons C. eig…

1. If a rock is thrown upward on the planet Mars with a velocity of 15 m/s, its

1. If a rock is thrown upward on the planet Mars with a velocity of 15 m/s, its height (in meters) after t seconds is given by H = 15t 1.86t2. (a) Find the velocity of the rock af…

1. If a scuba diver\'s lungs have a normal capacity of 4.9 L at sea level (1.0 a

1. If a scuba diver's lungs have a normal capacity of 4.9 L at sea level (1.0 atm), what would be the volume of her lungs if the pressure at a depth of 50 ft is 975 mmHg? 0.26 L 2…

1. If a small amount of strong base were added to a buffer made of a weak acid H

1. If a small amount of strong base were added to a buffer made of a weak acid HA and the lithium salt of its conjugate base, LiA, the pH does not change very much because.... a. …

1. If a solid sample of Al(OH) 3 is titrated with HI(aq) what is the sum of the

1. If a solid sample of Al(OH)3 is titrated with HI(aq) what is the sum of the coefficients of the balanced chemical equation for this titration? Write the equation in molecular f…

1. If a student used an excess of HCI to dissolve 0.0565 grams of pure Mg ribbon

1. If a student used an excess of HCI to dissolve 0.0565 grams of pure Mg ribbon. The temperature was 22.0 °C, the atmospheric pressure was 755 mmHg and the volume of hydrogen gas…

1. If a substance loses 25J of heat and has 10 J of work done on it, what is the

1. If a substance loses 25J of heat and has 10 J of work done on it, what is the net energy change for the substance? (2 points) 2. A sample of gas occupying 10.0 L is allowed to …