A 0.140 g sample of an unknown enzyme is dissolved in water to make 0.103 L of solution. The osmotic pressure of thesolution at 25 °C is found to be 0.779 mbar. Calculate the molecular mass of the enzyme.STRATEGY1. Determine the molarity of the enzyme solution.2. Determine the moles of enzyme.3. Calculate the molecular mass of the enzyme.The molarity of the solution can be determined based on the osmotic pressure.* = R.T M(where R 0.08314 L bar K- mol-)1 bar(0.779 mbar)1000 mbarM =RT= 3.14 x 10-5 mol · L-'%3D(0.08314 L bar K-. mol-) (298 K)The moles of enzyme in 0.103 L of a 3.14 x 10- M solution is3.14 x 10-5 molx 0.103 L = 3.24 x 10-0 mol1LGiven that 0.140 g of enzyme was dissolved, what is the molecular mass of the unknown enzyme?molecular mass:g/molQuestion Source: MRG - General ChemistryMacBook Ai000D00F4F6F7F8F9F10F11%246789

GIVEN: Mass of the enzyme = 0.140 g Moles of the enzyme =3.24 x 10-6 To Calculate: Molecular mass of…

Answered: Given that 0.140 g of enzyme was…

Science

Chemistry

Given that 0.140 g of enzyme was dissolved, what is the molecular mass of the unknown enzyme? molecular mass: g/mol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 23. A researcher wanted to use myoglobin as a substitute for hemoglobin to carry oxygen in a human…

A: We from the overall observation of the graph we can say the myoglobin curve is hyperbolic and the…

Q: The electrochemical gradient is a property of the environment set up around the neuron that allows…

A: The Electrochemical gradient is also a property which is used as a driving force for the movement of…

Q: Question 1 A concentration gradient consists of a gap junction ground substance a solute-level…

A: In this question, we have to choose the correct option regarding concentration gradient

Q: level of PH and CO2 in

A: Blood alcohol levels are affected by a variety of factors, including the number of drinks consumed,…

Q: 6. What element is reduced? 7. What is the oxidizing agent? 8. What is the reducing agent?

Q: How many g of dextrose are in 2.5L of D50WNSS

Q: The activity coefficient of aqueous glucose (C6H12O6) is ______. cannot be estimated from the given…

A: Activity and concentration are related to each other by the given equation. Activity = Activity…

Q: what is the concentration of the unknown protein in nanometers? use the information below! protein…

Q: please don't provide hand writing solution

A: The objective of the question is to find the probability of more than three individuals and exactly…

Q: Write the equilibrium expression for Kc for the reaction: 2 O3(g) => 3 O2(g)

A: The expression for the Kc = [products]/[reactants]

Q: 2) Ar0, H201D 1) CH3I, cx cess,

Q: glucosamine solution of unknown concentration was diluted as follows: 1 mL of the solution was…

A: Concentration of solution after dilution can be found by M1V1=M2V2 formula

Q: 2. A reaction in the cell has a STANDARD Gibbs Free Energy of -200 kcal/mol. Does this reaction need…

Q: Determine the Ksp for each solution. Cu(OH)2 Ba(OH)2 Mg(OH)2

Q: 7. 10 mL 1.5 M HCI is mixed with 100 mL of solvent or solution activity of H* in 1.0 M KCI solution…

A: We are given two different situations. One is H+ in 1.0 M KCl solution which is a soluble salt that…

Q: 5) Balance the following equation. AuCl3(aq) + Pb(s) → PBCI4(aq) + Au(s) --AuCl3(aq) +- ---Pb(s)…

A: This question belong to redox reaction. We have to balance the redox reaction by using ion electron…

Q: The concentration of a solution of sucrose C12H22O11 when 684 grams are completely dissolved in…

A: We have given that Mass of sugar = 684g Mass of solvent = 2000grams = 2Kg Molar mass of C12H22O11…

Q: My daughter loves lemonade. She adds 500 grams of sugar (sucrose C12H22O11) to a 1.5 liter pitcher.…

Q: 7. If 3.25 g of Mg(OH)2 can dissolve in 155 mL of water as it makes a saturated solutions, determine…

A: The mass of dissolved magnesium hydroxide is = 3.25 g The volume of the solution is = 155 mL The…

Q: how many grams of aspirin should we form in this reaction if we started with 2.08g of salicylic…

A: Given Mass of salicylic acid = 2.08 g Molar mass of salicylic acid = 138.12 g/mol Moalr mass of…

Q: 4. The bicinchoninic acid (BCA) assay is a non-specific assay that measures the quantity of protein…

A: BCA is one of the assay by the concentration of protein in a sample can be analysed and determined

Q: Which of the following occurs when products are added to a chemical reaction in solution or the gas…

A: -> when reactant or product added then it follow Le-chatelier principle.

Q: In the following reaction calculate and find the normality when it is 1.0 M H3PO4? H3PO4 + 2NaOH →…

A: Given: Molarity of H3PO4 = 1.0 M

Q: What is meant by the activity of a solute?

A: A solution is a homogeneous mixture in which the solute (minor component) is mixed in the solvent…

Q: Hb(aq)+O2(g) ⇄ HbO2 (aq) A person who has been a smoker and has low oxygen blood saturation uses an…

A: A question based on equilibrium concept, which is to be accomplished.

Q: Which substance gets reduced in: Pb(s) + PbO2(s) + 2H2SO4(aq) = 2PbSO4(s) + 2H2O(+)?

A: Given :- Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l) To identify :- reduced species

Q: A high COD/BOD in a river is undesirable because It can lead to fish kills O It can deplete the…

A: All the above.

Q: patient received 3.00 L of a 0.250 M glucose intravenous solution in total. How many grams of…

Q: The concentration of glucose in an aqueous solution can be determined by oxidation with…

A: The method of least squares is used to minimize the error that can occur while plotting a straight…

Q: Cell that contain more dissolved salt and sugar than the surrounding solution are called

A: Solutions are classified as hypertonic, hypotonic, and isotonic. This classification is based on the…

Q: Consider the following fictional reaction: 2AB(aq) = 2A(aq) + B2(aq) AH = -25 kcal/mol What happens…

A: This is an equilibrium reaction and change in enthalpy of the reaction is negative so exothermic…

Q: Guanosine monophosphate contains O Nitrogenous base O All of the options O Phosphate O Sugar

A: Given ,Compound : Guanosine monophosphateObjective : Determine composition of Guanosine…

Q: None

A: Please don't forget to write the answers in the desired significant figures.Note: There might be a…

Q: d If you synthesize 3.0 micromoles of NaTcO4, what mass of compound do you have? If the compound is…

A: We will convert moles to grams. Then calculate molarity of solution.

Q: if you determined the average concentration of vitamin c in the fruit juice to be 0.69mg/mL how many…

A: Ratio of mass of solute dissolved in the solution to the volume of solution is known as mass by…

Q: Answer the guide questions below by using the given data in this image. 1. What is the weight of…

A: Given ℅ solution by weight = 4℅ Density of solution at 25 °C = 1.02 g/mL MW of solute = 58.44 g/mol…

Q: What is the purpose of staggering the start and stop of the reactions?

A: Interpretation- What is the purpose of staggering the start and stop of the reactions -…

Q: Below are described three methods through which breads are leavened (risen). Which of them are…

A: Leavening agents are the substance causing the expansion of doughs and batters by the release of…

Q: Q: Iron rich groundwater contains 0.59 mg/L of iron carbonate in solution. If the coagulating agent…

A: 0.59 mg/L of Iron Carbonate will be removed.

Q: which ion is likely moving along its concentration gradient, and which io ion gradient? lon A is…

A: The objective of the question is to determine which ion will be likely to move along its…

Q: To make doughs and batters light and tender gas bubbles must be formed in the gluten matrix by…

A: Given: To make doughs and batters light and tender gas bubbles must be formed in the gluten matrix…

Q: You add Benedict's reagent to a test tube containing a solution to test for the presence of reducing…

A: The detailed solution of your question given below-- We know that Benedict solution is more…

Q: 0.26 mol of solid glucose (C6H12O6) is dissolved in 100. mL of water, what is the (w/w%)-(3 SF)

Q: HC2H3O2 (aq) + NaOH (aq) ----> NaC2H3O2 (aq) + H2O(l) Trial Vi (mL) Vf (mL) 1 2.25 15.76 2 3…

Q: Calculate the H (in kcal/mol) for the reactions (use table 7.1): • H2 + O2 ------ 2 H2O • CH4 + •…

Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

A 0.140 g sample of an unknown enzyme is dissolved in water to make 0.103 L of solution. The osmotic pressure of the
solution at 25 °C is found to be 0.779 mbar. Calculate the molecular mass of the enzyme.
STRATEGY
1. Determine the molarity of the enzyme solution.
2. Determine the moles of enzyme.
3. Calculate the molecular mass of the enzyme.
The molarity of the solution can be determined based on the osmotic pressure.
* = R.T M
(where R 0.08314 L bar K- mol-)
1 bar
(0.779 mbar)
1000 mbar
M =
RT
= 3.14 x 10-5 mol · L-'
%3D
(0.08314 L bar K-. mol-) (298 K)
The moles of enzyme in 0.103 L of a 3.14 x 10- M solution is
3.14 x 10-5 mol
x 0.103 L = 3.24 x 10-0 mol
1L
Given that 0.140 g of enzyme was dissolved, what is the molecular mass of the unknown enzyme?
molecular mass:
g/mol
Question Source: MRG - General Chemistry
MacBook Ai
000
D00
F4
F6
F7
F8
F9
F10
F11
%24
6
7
8
9

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A certain drug binds to a protein with Kd = 850.0 nM. What initial concentration of the drug would you need to add to a 50.0 µM solution of the protein so that 95.0% of the protein molecules are drug-bound at equilibrium? A. 1.62 μM B. 16.2 μΜ C. 47.5 μΜ D. 52.6 μM E. 63.7 μΜ
Please, answer thisss..
What is the value for this equation? Given: CO(g)+H20(g)=CO2(g)+H2(g) = 1.0 and initial concentrations are [CO2(g)]= 2.0 M, [H2(g)]= 2.0 M, [CO(g)]= 1.0 M, [H2O(g)]= 1.0 M
How many red blood cells are needed to make a line 1 in.in. long?
(Q84) With respect to the following unbalanced redox equation that takes place in a basic environmnet, what are the stoichiometric coefficients for the following species? (If the stoichiometric coefficient is 1, place the number "1" in the box). Zn (s) + NO3 (aq · [Zn(OH)4]2- (aq) + NH3 (g) --> Zn (s) NO3 (aq) OH H20 NH3 (g)
The normal range of fasting glucose (C6H12O6) in blood serum is 80-100 mg/dL. If a patient has a glucose concentration of 6.7 mmol/L, it that in a healthy range?
4. What is the ThOD of a solution containing 130 mg/L sucrose (C₁2H22O11)? C12H22O11 + 12 O₂ → 12 CO₂ + 11 H₂O
In the Analytical Chemistry Laboratory Ms. Fatema AI Kindy measured the concentration of Copper(Il) ions in the Rusayl Industrial area wastewater using EDTA titration technique. She has observed the following values for her replicate measurements. (1) 0.221 mol/L, 0.217 mol/L, 0.224 mol/L, 0.195 mol/L, 0.221 mol/L and 0.223 mol/L She has to discard the value 0.195 mol/L before averaaing the rest of the data or should 0.195 mol/L be retained.
Which reaction is this an example of CaCO3 + H2SO4 CaSO, + H2O + CO2 O Metal in acid O Carbonate/Bicarbonate in acid O Neutralization O Dissociation
(buffer )Find a buffer to maintain a laboratory system for coagulation at a pH of 5.5. The system uses a ferric chloride coagulant and generates acidity as defined by the reaction in equation (1). If the coagulant dose is 10 mg/L Fe+3 calculate the concentration of the buffer to maintain the pH at a level within 0.2 pH units. FeCl3 + 3 H2O ↔ Fe(OH)3 (s) + 3H+ + 3Cl-
While making a stock solution of NaSCN using 0.8 g of NaSCN in a 10 mL volumetric flask. 750 microliters of this solution were added to a 3500-microliter cuvette. What is the initial concentration of NaSCN in the cuvette? A. 0.21 M B. 13.18 M C. 2.82 M A. 1.07 M
While performing certain biochemical reactions, a student obtained two dif- ferent values: AG = -130 kJ/mol and AG = 240 kJ/mol. Which reaction is biologically favorable and why?