You want to make the following buffer: 5% glucose, 100 mM tris and 10 mM EDTA in a final voume of 300ml. Your stock solutions are 20% glucose, 1M tris and 0.5M EDTA. The diluent is distilled water. Determine how

93,434 results

Chemistry 3A

You want to make the following buffer: 5% glucose, 100 mM tris and 10 mM EDTA in a final voume of 300ml. Your stock solutions are 20% glucose, 1M tris and 0.5M EDTA. The diluent is distilled water. Determine how much of each you will add to make the desired buffer. I know this...

Biochemistry

You are asked to make 50 mM Tris-HCl pH 7.5. The pK of Tris is 8.1. What is the concentration of the components (Tris and Tris-H+) in the final buffer solution?

Biology

You have a stock solution with following components: glucose: 44 g/L NaCl: 191 g/L Tris Buffer: 275 g/L You mix 71 mL of the solution with water and bring the resulting solution to a final volume of 750 mL. What is the final concentration of glucose in g/L?

Biochem

Calculate the amount of Tris(hydroxlmethyl)aminomethane(Tris) necessary to make 100mL of a 0.100 M Tris buffer that is equimolar in Tris-base (MW=121.1 g/mol) and Tris-HCL (MW= 157.6g/mol)

Science

You wish to make 1L of sterile lysis buffer soln. that is 10mM Tris-EDTA (pH 8) and 2% SDS. You have plenty of the following stock solns.: 2M Tris-EDTA (pH 8) and 20% SDS. However, SDS cannot be autoclaved and must be added to the soln. after autoclaving is done. Assume that ...

Biochemistry

How do you prepare 100 mL of a 0.1 M TRIS-HCl buffer with a pH 7.4 using solid TRIS base (MW 121.1) and 1 M hydrochloric acid? I started with pH=pKa + log ([Tris]/[Tris+] [Tris]/[Tris+]= 10^(7.4-8.06]=0.219 so 0.219:1 ratio with 2.219 total [Tris}=(0.219/1.219)*0.1 M= 0.018 M...

biochemistry

how many grams each of tris and tris HCl are needed to make up 500ml of 1m tris buffer with a PH of 8.0. pka of tris =8.3 mwt of tris =121 mwt of tris HCl =175

Chemsitry

Tris is an abbreviation for tris (hydroxymethyl) aminomethane, which is a weak base. Calculate how many grams of tris (mw=121.14g/mol) are needed to make 25mL of 0.10M tris solution. Calculate how many mL of 0.25M HCl are needed to convert half of the moles of tris present in ...

chemistry

An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the ...

BCH

How many gramms of Tris and Tris Hcl are needed to make up 500ml of 1m Tris with a PH of 8.0? (pka of Tris is 8.3, mw of Tris is 121, mw of Hcl is 157.

Biochemistry

An enzyme-catalyzed reaction was carried out in a 0.2M �Tris� buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1) (a) What was the ratio of Tris+ (conjugate acid) / Triso (Conjugate base) at the start of the ...

chemistry

. An enzyme-catalyzed reaction was carried out in a 0.2M �Tris� buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1) (a) What was the ratio of Tris+ (conjugate acid) / Triso (Conjugate base) at the start of the ...

chem biochem bio

You have the following stock solutions and solid chemicals in your lab: 1.5M NaCL 0.2M Tris buffer, pH 8.0 10 mg/ml Bovine serum albumin (BSA) MgCl2 (solid, anhydrous) MW = 95.211 g/mole (95% pure) How would you make 250 ml of the following solution??? 0.2M NaCl 0.05M Tris, pH...

chemistry

An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the ...

biochem

You have the following stock solutions and solid chemicals in your lab: 1.5M NaCL 0.2M Tris buffer, pH 8.0 10 mg/ml Bovine serum albumin (BSA) MgCl2 (solid, anhydrous) MW = 95.211 g/mole (95% pure) How would you make 250 ml of the following solution: 0.2M NaCl 0.05M Tris, pH 8...

chemistry lab

An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced. What is the ratio of TRIS base to TRIS acid at the start of the ...

Biochemistry

Calculate the amount (in grams) of Tris Base needed to make 1L of 0.01M Tris buffer? Tris Base=121.4 g/mol

Chemistry

Starting with solid Tris base (FW 121.1) and 1 M HCl, describe how you would make 2 liters of 200 mM Tris-HCl buffer pH 7.5. pKa of Tris 8.14

Chemistry

In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, often abbreviated as Tris. At 25 C, Tris has a pKb of 5.91. The hydrochloride can be abbreviated as Tris HCl. What volume of 10.0 M NaOH is needed to prepare a ...

chemistry

This is my third time to ask this and no one has answered. Please help. An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002 mol of H+ were produced...

chemistry

Prepare 1.5 liters of 0.25 M Tris buffer, pH 7.5. Useful information: pKa Tris = 8.1 Formula weight of Tris (hydroxymethyl aminomethane) base = 121.1 Formula weight of Tris hydrochloride (acid form) = 158.0

BioChem

How much Tris-HCl would you need (in grams) to add to create 100 mL of a 0.223 M Tris buffer that is pH 9.64. The pKa of Tris-HCl is 8.30. I'm on my last try and thought I had it multiple times but keep getting it wrong.

chemistry

How much Tris-Acetate-EDTA (TAE) stock buffer (3.25 M) is required to make 400 ml of solution that has a concentrations of 250 mM? How much water?

Biochemistry

This is my last question and I just am not getting it for some reason. Prepare a 500 ml of 0.15 M tris buffer, pH 8.25 from tris mono hydrochloride, 0.400 M HCL, and 0.350 M NaOH. Determine amounts needed and them write the recipe. Pka for tris is 8.00

Molecular Bio

You are planning to digest human genomic DNA with the EcoRI restriction enzyme but realize you do not have any 10X buffer available to add to the reaction. The components of the 10X buffer are: 50 mM NaCl, 100 mM Tris, 10 mM MgCl2, and 0.025 % TritonX-100. You search around ...

chemistry

Tris(hydroxymethyl)aminomethane, commonly called TRIS or Trizma, is often used as a buffer in biochemical studies. Its buffering range is pH 7 to 9, and Kb is 1.19 10-6 for the following aqueous reaction. (HOCH2)3CNH2 + H2O (HOCH2)3CNH3+ + OH - (HOCH2)3CNH2=TRIS (HOCH2)3CNH3+=...

biochemistry lab

A) If you make up a solution of 50 mL of 0.1 M TRIS in the acid form, what will be the pH? B) If you add 2 mL of 1M NaOH to the solution in part A, what will be the pH? If it is needed, here is some addition information: TRIS pka= 8.3 mw of TRIS-HCL= 157.6 g/mol; mw TRIS (...

chemistry

Prepare 150 ml of a reaction buffer containing 0.75% MgCl2, 35mM glucose, 750 nM ATP, and 20 mM Tris-Cl, pH 7.5. In addition, you have a 20% MgCl2 stock solution and the lab freezer has 10 mM ATP that you can dilute to the correct concentration.

chemistry

what is the pH of the buffer when 4ml of 1M HCl is added to a 100ml buffer solution made using 5ml 1M Na2HPO4 and 5ml 1M NaH2PO4? The pKa for H+ + HPO4- ==> H2PO4 is 6.82. What would happen to the pH if the 100ml buffer had been made up at the starting pH (6.82) using Tris...

chemistry

I am trying to calculate the how amount of Tris-bicarbonate should be added in the reaction. I would like to have final volume of bicarbonate 10mM in 2ml reaction. I made Tris-base (1M, 100ml) and instead of HCl, CO2 was bubbling to set pH7.5. 0.1L*0.1M= 0.01 moles of Tris...

Chemistry

Calculate the pH of a solution prepared by dissolving 10.0 g of tris(hydroxymethyl)aminomethane ("tris base") plus 10.0 g of tris hydrochloride in 0.250 L of water. (a) What will be the pH if 10.5 mL of 0.500 M NaOH is added?

Chemistry

How to make 100 mL of 100mM of Tris HCl and 100 mL of 100mM of Tris Base. Follow the pH of the resulting combined solution as it is heated from 0 to 50 degrees Celsius.

Chemistry

How to make 100 mL of 100mM of Tris HCl and 100 mL of 100mM of Tris Base. Follow the pH of the resulting combined solution as it is heated from 4 to 50 degrees Celsius. I did not use the HH equation in this problem. I started with just converting to moles needed and then to ...

chem

A student placed 12.0grams of glucose in a flask added enough water to dissolve glucose by swirling then added additional water until the .100 ml mark. A 60.0ml sample of this glucose soon was diluted to 0.500 L. How many grams of glucose are in 100. ml of the final solution.

chemistry

first task is to prepare 250 ml of 3 M glucose. Then You are preparing a solution and the recipe calls for 25 ml of 10% glucose. How much of the 3M glucose stock would you need to add to so that you are adding the same molar amount of glucose?

Chemistry

The molecular mass of glucose is 180g/mol. you prepare a stock solution of glucose, by dissolving 1.8g of glucose in water to a final volume of 1.0L. The stock solution was then diluted as follows: a. 50mL of the stock solution is added to 450mL of water, b. and then 1.0mL of ...

Chem 111

A solution is prepared by mixing 499 mL of 0.19 M Tris·Base and 592 mL of 0.37 M Tris·Acid. What is the pH of this solution? [Ka(Tris·Acid) = 8.5 × 10-9] Round your answer to two places past the decimal. I can do basic pH questions but I am at a loss on this one. Please help.

Biochemistry

Complete hydrolysis of 25 mM ethyl acetate in an enzyme esterase catalyzed reaction is carried out in a 40 mM NaCl solution buffered by 0.2 M Tris-Cl, pH 9.1. What is the pH at the end of the reaction? (For Tris base, which is the abbreviation for Tris (hydroxymethyl) ...

chemistry

A) If you make up a solution of 50 mL of 0.1 M TRIS in the acid form, what will be the pH? (pka of TRIS: 8.3, molecular wt: 121.1 g) B) if you add 2mL of 1 M NaOH to the solution, what will be the pH? Thank you.

o chem

Which is not correct? glucose is a reducing sugar glucose has six carbon atoms glucose undergoes mutarotation glucose is a disaccharide glucose is an aldose

Chemistry

Which of the solutions has the greatest osmotic pressure? Choose one answer. a. 10.0 g glucose in 1.00 L at 298 K b. 10.0 g glucose in 1.00 L at 303 K c. 10.0 g glucose in 0.500 L at 298 K d. 5.0 g glucose in 1.00 L at 298 K

science

Glucose is a simple sugar made up of carbon, hydrogen, and oxygen. What kind of molecule is glucose? A. Glucose is protein. B. Glucose is a nucleic acid. C. Glucose is an organic molecule. D. Glucose is an inorganic molecule

chemistry Please Help Dr.BOB

Complete hydrolysis of 25 mM ethyl acetate in an enzyme (i.e., esterase)-catalyzed reaction is carried out in a 40 mM NaCl solution buffered by 0.2 M Tris-Cl, pH 9.1. What is the pH at the end of the reaction? (For Tris base, which is the abbreviation for Tris (hydroxymethyl) ...

chemistry

if you mix 50ml of 0.1 tris acid with 60ml if 0.2m tris base, what will be the resulting pH?

chemistry

From a 1M Tris solution, how is a 400ml of 0.2 M Tris prepared? I have no idea where to start

chemistry

A student placed 11.5 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 25.0...

Chemistry

A student placed 14.0 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 55.0...

chemistry

A student placed 12.5 of glucose () in a 100.- volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the calibration mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

Chemistry

A student placed 12.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

Chemistry Help Please!!!

A student placed 17.0 g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

chem

A student placed 13.5g of glucose (\rm C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. \rm mL mark on the neck of the flask was reached. The flask was then shaken until the ...

Chemistry-Please help

A student placed 11.0 of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform...

chemistry

Normal glucose levels in the blood are from 70 to 110 mg glucose per 100 mL of blood. I the level falls too low, there can be brain damage. If a person has a glucose level of 108 mg/100 mL, what is the total mass of glucose in grams in 5.10L of blood?

Molecular cell Biology

The following chemicals have the indicated formula weights:Sucrose-342.3,Potassium dihydrogen phosphate(KH2PO40-136.09,Tris -121.14.You also have the following solutions made:20%SDS,5M NaCl,500mM EDTA.You have a 40%glycerol solution and 10X TBE.List the steps to make the ...

AP Chem

A student placed 17.5 g of glucose in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 60.0...

Chemistry/maths

Using the following stock solutions: NaCl, 100mmol KCl, 200mmol CaCl2, 160mmol Glucose, 5mmol Calculate the volumes of each stock solution and the volume of water needed to prepare 100ml of a single solution containing NaCl at 5.0mmol KCl at 2.5mmol CaCl2 at 40mmol Glucose at ...

biochemistry with more info that was needed

Calculate the weight of the buffers you will use to make the buffers for Part A for all the buffer possibilities listed under procedures in Part A, step 1. In other words, how many grams do you need to make 100 mL of a 0.1 M buffer? Buffer pKa1 pKa2 pKa3 formula wt.(g/mol) ...

chemistry

A student placed 10.5 g of glucose C6H12O6 in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform...

Biology

Imagine that you have a stock solution with a concentration of 4.6 M glucose (C1). You want to use the stock solution to prepare a diluted solution of 0.22M glucose (C2). You need a total volume of 10mL of 0.22M glucose (V2). What volume of water you need to use for making 0....

Chemistry

Imagine that you have a stock solution with a concentration of 4.6 M glucose (C1). You want to use the stock solution to prepare a diluted solution of 0.22M glucose (C2). You need a total volume of 10mL of 0.22M glucose (V2). What volume of water you need to use for making 0....

Chemistry

A student placed 17.0 g of glucose (C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

Chemistry

The human body “burns” glucose (C6H12O6) for energy. a. Write a balanced chemical reaction for the complete combustion of glucose to CO2(g) and H2O(l) such that the stoichiometric coefficient for glucose is 1. b. When 1.00 g of glucose are completely burned at 298.15 K and...

physiology

how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.

Microbiology

You need to make 20ml of a 20% glucose solution. The M.W. of glucose is 180.16. How would you accomplish this: Glucose _______g Pure Water _______ml

College Chemistry

A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

College Chemistry

A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

College Chemistry

A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

chemistry

Calculating final concentrations. Your instructor asks you to add the specified quantities of 2M Tris pH 8.0 buffer to 140 ml of distilled water. Calculate the final concentration and dilution factor of each solution. a)10ml b)20ml c)140ml

biology

A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D: 6.97% (m/v) glucose Solution E: 5.0% (m/v) glucose ...

Chemistry

How much Tris do you need to weigh out to make 250 ml of the 50 mM buffer? A. 0.95g B. 1.51g C. 2.42 D. 1.75g

Chemistry HELP!

A student placed 10.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

Please Help Fast

A student placed 10.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

moles/solutions.

I have three questions. The first one I got an ansser of 6.02 X 10^23. The question is this. How many molecules of sucrose (C-12,H-22, O-11) molecular weight, 342, would be present in one mole of sucrose? The other two questions I have are related. A) The molecular weight of ...

Chemestry

How many grams of glucose would you need to make 500 ml of a 100 mM solution? the atomic weight of glucose is 180. I was not given a way to solve this my my teacher.

CHEMISTRY

Which of the following solutions do they have the maximum osmotic pressure : 1) 0.1 m ( molal conc.) glucose 2) 0.1 m sucrose 3) 0.5 m glucose 4) 0.2 m sucrose and why ?

Science

You have a stock solution of 3.5M glucose. You need a working solution of 0.5M glucose in a volume of 400ml. Explain how you make the solution. Also what is the concentration of the dilution solution?

Biology

You prepare a solution by dissolving 319 g of glucose and 114 g of NaCl in water and bring the final volume up to 1,088 mL. What is the final concentration of glucose in g/L?

AP Biology

During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?

Ap Biology

During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?

Biology

How would you prepare 100 ml of the following aqueous solution: 25 mM TrisCl, 50 mM EDTA, 2% (w/v) NaCl, 5 X M9? You have been provided with stock solutions of 1 M TrisCl, 0.5 M EDTA, 25 X M9 and crystals of NaCl.

Chemistry

1. Calculate the pH of a buffer solution that contains 0.32 M benzoic acid (C6H5CO2H) and 0.17 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal. 2. A solution is prepared by mixing 470 mL of 0.18 M Tris·Base ...

Chemistry

1. Calculate the pH of a buffer solution that contains 0.32 M benzoic acid (C6H5CO2H) and 0.17 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal. 2. A solution is prepared by mixing 470 mL of 0.18 M Tris·Base ...

Chem

Please help are these right? A 2.3 mole sample of nitrogen (N2), has a volume of 50.0 L and a pressure of 630 mmHg. What is the temperature of the gas? 41.5 C which I converted to Kelvin and got 231.5K Calculate the molarity (M) of the following solutions: A) 2.0 moles of ...

Chemistry

The term mole is used in chemistry to define an amount of a substance. For example, a mole of glucose, blood sugar, weighs 180.16 grams. A common concentration unit for solutions is moles of substance per liter of solution. We abbreviate this with the symbol M. For example, 0....

math

calculation of prepaired tris buffer 0.02mol/lit , ph 9.0

chemistry

who prepaire tris buffer 0.2 mmol/lit calculation

Math (Please help)

you need to make 20ml of a 20% glucose solution. I need to calculate the amount of glucose and water needed. I know that the M.W is 180.16 for glucose. Would I multiply 20ml times 20 percent first? Thank you!

Biology

The following chemicals have the indicated formula weight Surcose = 342.3g; Potassium dihydrogen=136.09; and Tris=121.14 Also the following solution already made: 20%SDS, 5M NaCl, 500mM EDTA. You have a 40% glycerol solution, and 10X TBE. List the step to make the following ...

chemistry

how much CO2 can be produced if 100 g glucose is allowed to react with 100 g O2? which is the limiting reactant, oxygen pr glucose?

Science. (I'm patient, no rush)

Which of the following sets of words can be used to describe the outputs of photosynthesis? A. water, glucose, light energy B. Carbon dioxide, glucose, chemical energy C. oxygen, glucose, chemical energy D. glucose, oxygen, light energy*** Am I correct?

Science

what test would you need to perform to prove that it is the combination of glucose in the glucose indicator solution that changes color when heated and not just the glucose or the glucose indicator solution alone. support your anwser with a solution

science

to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose to be weighed

science

to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose to be weighed

chemistry

A student placed 19.0g of glucose (c6h12o6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100ml.- mark on the neck of the flask was reached. The flask was then shaken until the solution was ...

chem

A student placed 12.5 of glucose (C6H12O6) in a 100ml volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the calibration mark on the neck of the flask was reached. The flask was then shaken until the solution ...

science

If the concentration of glucose in the blood flowing through the kidneys is within the normal range, then which of the following statements is correct? a. The nephron pumps glucose into the collecting duct. b. The Bowman's capsule secrets glucose back into the blood. c. No ...

science

If the concentration of glucose in the blood flowing through the kidneys is within the normal range, then which of the following statements is correct? a. The nephron pumps glucose into the collecting duct. b. The Bowman's capsule secrets glucose back into the blood. c. No ...

chemistry

During lab, you are provided with a stock antibody solution (Ab) that has a concentration of 400 μg/μl. For lab, it is necessary make the following dilutions (Fill in the blanks): 5μL of Stock Ab + 195μL of buffer to make a 1:____ dilution at _______μg...

Chem

A patient receives 3.5 L of glucose solution intravenously (IV). If 100. mL of the solution contains 5.9 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution?

Chemistry

A typical buffer used by biochemists is called Tris, which can be depicted as R3N. A buffer that is prepared by mixing 500ml of .05M R3N with 500ml of .05MR3NHCl at 25 C has a pH of 8.40. If this same buffer is placed in a cold room at 4 C the pH increases to 9.2. From this ...

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