Chemistry concepts and calculations

You recovered the following amount of protein, fat, and phosphate from a 50 mL s

You recovered the following amount of protein, fat, and phosphate from a 50 mL sample of milk that weighed 51.103 g: What is the percent recovery? 1lakeuiz [Cumipstibility Mede] W…

You run a cookie baking unit operation. The process uses 1lb of chocolate chips

You run a cookie baking unit operation. The process uses 1lb of chocolate chips to 3lbs of cookie dough both of which are provided from upstream processes. You want to produce 10 …

You run a titration experiment to determine the mass of ascorbic acid (MM=176.12

You run a titration experiment to determine the mass of ascorbic acid (MM=176.12 g/mole) in a vitamin C tablet. The tablet was dissolved in 100mL of water and the titration requir…

You run an enzyme assay designed to determine the -glucosidase activity after 1

You run an enzyme assay designed to determine the -glucosidase activity after 1 hour (60 min) by determining the concentration of p-nitrophenol. The results you collected are pres…

You run an enzyme assay designed to determine the alpha-glucosidase activity aft

You run an enzyme assay designed to determine the alpha-glucosidase activity after 1 hour (60 min) by determining the concentration of p-nitrophenol. The results you collected are…

You see a puddle of water after a rainstorm on an asphalt driveway. As the sun c

You see a puddle of water after a rainstorm on an asphalt driveway. As the sun comes out, the puddle slowly but surely evaporates. Estimating an initial volume of the puddle of ar…

You see on the label of a 1-liter bottle of wine that the winemaker started with

You see on the label of a 1-liter bottle of wine that the winemaker started with a solution containing 28% (weight/volume) of sugar (assume that it is glucose). The wine that is n…

You set up an experiment as shown below to determine the pressure at which a clo

You set up an experiment as shown below to determine the pressure at which a cloud will form at various temperatures. Before starting the experiment, you determine the following i…

You set up an experiment as shown below to determine the pressure at which a clo

You set up an experiment as shown below to determine the pressure at which a cloud will form at various temperatures. Before starting the experiment, you determine the following i…

You set up your experiment to trap the gas produced when Pop Rocks® react with b

You set up your experiment to trap the gas produced when Pop Rocks® react with both soda and HCl as shown below. You collect the following data as you complete the experiment. You…

You should add acid to water and now water to acid _. What personal protective g

You should add acid to water and now water to acid _. What personal protective gear is requited to the Lab Goggles Lab coat face shield A and B A, B and C What test (s) could be u…

You should be able to complete this part without looking at a map or atlas. Agai

You should be able to complete this part without looking at a map or atlas. Again, Latitudes and Longitudes of some well known cities around the world are listed in column 2. The …

You should download this ebook from google ,go to page 113-115 read Case 1 Manag

You should download this ebook from google ,go to page 113-115 read Case 1 Managing BYOD Security Risks and answer the questions 1 - 8. Information Technology for Management Advan…

You should have five questions on this pre-lab assignment. Perform the following

You should have five questions on this pre-lab assignment. Perform the following calculation and report the answer to the correct number of significant figures (assume all quantit…

You should have four questions on this pre-lab assignment. You may assume soluti

You should have four questions on this pre-lab assignment. You may assume solution densities are the same as the density of water: 1.00 g/mL. Question:1 Perform the calculations t…

You smell ammonia when NaOH solution is added to a solution of your unknown. Whi

You smell ammonia when NaOH solution is added to a solution of your unknown. Which of the following compounds might your unknown be? You smell ammonia when NaOH solution is added …

You spin a disk, giving it an initial angular velocity of 2.10 rad/s clockwise.

You spin a disk, giving it an initial angular velocity of 2.10 rad/s clockwise. After you give it that initial spin, the disk has a constant angular acceleration of 0.800 rad/s2 c…

You stand at the top of a deep well. To determine the depth, D, of the well you

You stand at the top of a deep well. To determine the depth, D, of the well you drop a rock from the top of the well and listen to the splash as the rock hits the waters surface. …

You start with some \"pure\" water at 25.0° C (a temperature at which the value

You start with some "pure" water at 25.0° C (a temperature at which the value of Kw = 1.01 × 10-14) and add enough HCl so that the resulting solution is 5.00 × 104 M HCl. What is …

You start with some \"pure\" water at 25.0° C (a temperature at which the value

You start with some "pure" water at 25.0° C (a temperature at which the value of Kw = 1.01 × 10-14) and add enough HCl so that the resulting solution is 5.00 × 104 M HCl. What is …

You start your experiment with an empty test tube having a mass of 10.3362 g. Yo

You start your experiment with an empty test tube having a mass of 10.3362 g. You are working with a hydrated compound of calcium sulfate. After adding the hydrate to the empty te…

You study the effect of temperature on the rate of two reactions and graph the n

You study the effect of temperature on the rate of two reactions and graph the natural logarithm of the rate constant for each reaction as a function of 1/T. How do the two graphs…

You study the effect of temperature on the rate of two reactions and graph the n

You study the effect of temperature on the rate of two reactions and graph the natural logarithm of the rate constant for each reaction as a function of 1/T. How do the two graphs…

You study the effect of temperature on the rate of two reactions and graph the n

You study the effect of temperature on the rate of two reactions and graph the natural logarithm of the rate constant for each reaction as a function of 1/T. How do the two graphs…

You study the effect of temperature on the rate of two reactions and graph the n

You study the effect of temperature on the rate of two reactions and graph the natural logarithm of the rate constant for each reaction as a function of 1/T. How do the two graphs…

You study the effect of temperature on the rate of two reactions and graph the n

You study the effect of temperature on the rate of two reactions and graph the natural logarithm of the rate constant for each reaction as a function of 1/T. How do the two graphs…

You suspect that a water sample contains lead (II) ions and wish to test your su

You suspect that a water sample contains lead (II) ions and wish to test your suspicion      by carrying out an appropriate precipitation reaction using the water sample.      a) …

You suspect that you overshot the endpoint of the titration (or added too much N

You suspect that you overshot the endpoint of the titration (or added too much NaOH solution in your first attempt at titrating the KHP with NaOH.) Since the calculations are simp…

You synthesized a hydrogel composite with liposomes that produced the following

You synthesized a hydrogel composite with liposomes that produced the following release curves at 37, 41 and 45°C. Which of the statements could be true? A. The liposomes used wer…

You take a strand of copper wire and form it into a circular loop of circumferen

You take a strand of copper wire and form it into a circular loop of circumference of 0.325 m. You then place the loop in a uniform, constant magnetic field of magnitude 0.00213 T…

You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, an

You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, burn it in air, and collect 2.20 g of carbon dioxide and 0.400 g w…

You then measure the absorbance of the solutions you chose. The data for all the

You then measure the absorbance of the solutions you chose. The data for all the solutions is given in the table below. To complete this challenge you will need to upload a calibr…

You titrate a 0.53 g sample of KHP with NaOH and find that it takes 23.38 mL of

You titrate a 0.53 g sample of KHP with NaOH and find that it takes 23.38 mL of base to reach the endpoint. Calculate the concentration in molarity of the NaOH solution. Do not us…

You titrate a sample of the acid containing 0.367 g of the acid using 0.3341 M N

You titrate a sample of the acid containing 0.367 g of the acid using 0.3341 M NAOH solution. Your initial buret reading is 1.06 mL and your final buret reading is 25.83 mL. Deter…

You titrate a sample of the acid containing 0.367 g of the acid using 0.3341 M N

You titrate a sample of the acid containing 0.367 g of the acid using 0.3341 M NAOH solution. Your initial buret reading is 1.06 mL and your final buret reading is 25.83 mL. Deter…

You titrated Valine, dissolved it, solidified the solution with an excess of HCl

You titrated Valine, dissolved it, solidified the solution with an excess of HCl, then titrated with NaOH until pH of 13.5 was reached. Use the following info to determine. a. Mol…

You transfer 10.00 mL of your Kroger brand vinegar via volumetric pipet to a 100

You transfer 10.00 mL of your Kroger brand vinegar via volumetric pipet to a 100.00 mL volumetric flask and dilute to the final volume using distilled water, after which you mix t…

You tried to find the rate law for the reaction of below. Table of below shoes t

You tried to find the rate law for the reaction of below. Table of below shoes the compositions of test tubes used to study the kinetics of this reaction S_2O_8^2- + 2I^- (aq) rig…

You use 1mL of p-anisaldehyde and 1mL of acetaphone (along with other reagent, n

You use 1mL of p-anisaldehyde and 1mL of acetaphone (along with other reagent, not important in this case) to make p-anisalacetophenone. What is the molar mass(g/mol), volume, den…

You use 95 degree C water to heat a reactor to 75 degree C. Assume a heat capaci

You use 95 degree C water to heat a reactor to 75 degree C. Assume a heat capacity of water of 4.19 kJ/peg K), a viscosity of 1 cP and a density of Ig/ml. Your pump pumps water at…

You use a measuring pipet to deliver a volume of solution into a beaker. The sta

You use a measuring pipet to deliver a volume of solution into a beaker. The staring reading on the pipet is 0.02 plusminus 0.02 mL and the final reading on the pipet is 8.11 plus…

You use a method that is able to visualize all spots on your TLC plate simultane

You use a method that is able to visualize all spots on your TLC plate simultaneously, revealing new spot D as seen in the TLC plate shown below. Using other analytical techniques…

You use a pH meter to determine Ka for the new monoprotic weak acid that you dis

You use a pH meter to determine Ka for the new monoprotic weak acid that you discovered. At 25 degree C the pH was 3.54 +/- 0.01. What is the uncertainty in the concentration of H…

You use the Bradford (coomassie) assay to determine the concentration of a histo

You use the Bradford (coomassie) assay to determine the concentration of a histone protein. You use bovine albumin as your standard. You determine the histone protein concentratio…

You use the values above to calibrate your spectroscope by plotting a line of th

You use the values above to calibrate your spectroscope by plotting a line of the known wavelengths(y) versus the readings obtained(x). What is the equation of the line? y = x + .…

You used 1.0014g of p-aminobenzoic acid and 3mL of ethanol (along with other rea

You used 1.0014g of p-aminobenzoic acid and 3mL of ethanol (along with other reagents, not important in this case) to make bezocaine. Answer the following questions, show all calc…

You visit the planet Htrae, where every compound is the mirror image of the corr

You visit the planet Htrae, where every compound is the mirror image of the corresponding compound on Earth. You are addicted to nicotine, but NASA has banned smoking on its fligh…

You want to add D-methionine to liquid cultures of E. coli that you have grown o

You want to add D-methionine to liquid cultures of E. coli that you have grown overnight to see if this unusual amino acid affects the growth rate of the bacteria. To test this, y…

You want to analyze a cadmium nitrate solution. What mass of NaoH s to precipeat

You want to analyze a cadmium nitrate solution. What mass of NaoH s to precipeate the cd ions from 35.3 mL of o 493 M cd(Nos2 solution? needed Periodic Table Fundamental My Notes …

You want to analyze a core sample containing oil, water and gas. Bulk volume of

You want to analyze a core sample containing oil, water and gas. Bulk volume of sample was 95 Cm^3 and its initial weight was 216.7 gin. Sample was evacuated and gas space was sat…