[2] A 20.0 mg sample of a protein is dissolved in water to make 25.0 ml of solution. The osmotic pressure of the solution is 0.65 mmHg at 25 °C. What is the molar mass of the protein?

Q: 3. According to the Evan's pKa table, phenol has a pka of 9.95. p-Nitro and m-nitrophenol have pKas ...

A: Ka is the acid dissociation constant. pKa is defined as the negative logarithm to base 10 of Ka. Hig...

Q: Calculation the pH of the following systematically. Make sure to include the pertinent reactions and...

A:

Q: Food rots about 30 times more rapidly at 25 °C than when it is stored at 6 °C. Determine the overall...

A:

Q: Be + 2 HCl --> BeCl2 + H2            My theoretical yield of beryllium chloride was 10.7 grams.  I...

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If y...

Q: entropy

A:

Q: 9. Gas is one of the fundamental states of matter. Which statement best explains the fact that gases...

A: There are three phases of matter. The phase of matter can be interchanged by changing the temperatur...

Q: Iridium (Ir) has a face-centered cubic unit cell with an edge length of 383.3 pm. Calculate the dens...

A: Given: Edge length of the unit cell = 383.3 pm = 383.3 × 10-10 cm.                       (Since 1 pm...

Q: t-Pentyl Chloride experiment 1. After mixing the t-pentyl alcohol with concentrated HCl in the sepa...

A: The answer is as follows:  

Q: Predict the major product of this reaction. K2Cr207 H3O+ II HO2C. CO2H HO `OH II IV HO2C. HO

A: option D is correct 

Q: Draw the line diagram then write out the condensed structure out for the molecule: 2-ethyl-3-hydroxy...

A: Condensed structures can be defined as the structure that is written in a single line. It help us  t...

Q: The reaction of sucrose with water in an acidic solution is C12H22011 H20 C6H1206 + C6H1206 + sucros...

A: Concentration remaining after particular time can be calculated for first order reaction using follo...

Q: You wanted to produce 2-nitrobenzene-1,4-dicarboxylic acid. For that purpose, you started he reactio...

A: The correct synthetic method applied here is :- Starting with alkyl benzene(toulene)  which upon nit...

Q: Match each term with its antonym (opposite). Vaporization [Choose ] Deposition [Choose ] Solidificat...

A: Here the given terms are Vaporization, Deposition and Solidification. We have to choose the opposite...

Q: How many moles of NH₃ can be produced from 2.76 moles of nitrogen in the following reaction: N₂ (g) ...

A:

Q: Calculate the isoelectric point of aspartic acid

A: Aspartic acid is amino acid. Amino acids are the building blocks of life. Protein is made up of amin...

Q: How many stereoisomers are possible for ephedrine? Clearly show how you arrived at your determinatio...

A: We can determine the possible stereoisomers by deciding the number of chiral carbon centres present ...

Q: 5.31. Generate a curve for the titration of 50.00 mL of a solution in which the analytical concentra...

A: In the given problem, the titration curve for the titration of 50.00 mL mixture of 0.1000 M HClO4 an...

Q: Given that the total pressure over a solution of benzene and toluene is 100.0 Torr, calculate the mo...

A: Total  pressure over a solution of benzene and toluene = 100 torr Pressure of benzene in pure state ...

Q: Find | grxn (in kilojoules) when 1.00 g of calcium oxide is reacted with 250 mL of water to form cal...

A: consider the given information, mass of calcium oxide = 1.00g volume of water = 250 ml the change in...

Q: Determine the number of moles in: (a) 100 grams of magnesium hydroxide (Mg=24, O= 16, H=1) (b)1.75 x...

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: : O : : O: O O Decide whether these proposed Lewis structures are reasonable. Is the proposed Lewis ...

A: Lewis dot structure is diagrammatic representation of molecules by bonding electrons and non bonding...

Q: A 3.054 g sample of Vanadium was combined with oxygen to form 4.454 g of product. Calculate the empi...

A: To determine the emperical formula , we have to calculate moles of vanadium and and oxygen present i...

Q: Question 6 of 18 Fill in the blanks: Write the letter of the pair of compounds that illustrates the ...

A:

Q: A: Categorize the following as Brønsted-Lowry acids, bases or both. Write the letter that correspond...

A: The Bronsted-Lowry acid-base theory was proposed by Bronsted. It states that acid can give H+ ions w...

Q: 2. You want to synthesize a polymer using following chemicals. What is a base unit of the polymer?

A:

Q: Which of the following reactions has a negative entropy change? Group of answer choices NH4Cl(s) → N...

A:

Q: CH3 CH2 CH3 (с) (а) (b) PPH

A: Concept IUPAC nomenclature; 1) According to IUPAC nomenclature system longest chain is selected whic...

Q: The osmotic pressure of a solution containing 1.15 mg of a sugar (342 g/mole) in 11.0 mL of the solu...

A:

Q: Give the IUPAC name of the compound below.

A:

Q: In an electrophilic aromatic substitution, the substitution pattern on the product is determine by t...

A: A nucleophilic aromatic substitution reaction is a organic reaction. In which the nucleophile

Q: Give the IUPAC name of the compound be

A:

Q: A nitrogen sample occupies 246 mL at STP. If the same sample were collected over water at 25°C and 6...

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and...

Q: Point Group please explain mer-[Fe(terpy)2]2+ (Mes)Mo(CO)3

A:

Q: Why is it importance to understand the difference of an acid and base solution? What benefits does i...

A: Given : We have to tell why there is need to understand the difference between acid and base.

Q: Which method enables scientists to test a theory under controlled conditions?

A:

Q: Write an IUPAC name for the following alkane/cycloalkane: Name:

A:

Q: n the calorimetry experiment was used to measure the heat of reaction for an endothermic process, wh...

A: Since you have posted multiple questions, we are entitled to answer the first only.  

Q: B: Identify water as either a Bronsted-Lowry acid or a Bronsted-Lowry base of the reactions shown be...

A: The reactions given are,  

Q: A well-sealed gas flask contains argon at a pressure of 120 kPa at 40 degrees Celsius. The flask can...

A: We need to use ideal gas equation in this. Initial pressure, P1 = 120 kPa Initial temperature, T1 = ...

Q: Consider the reaction, CH3CI(g) + 3CI2(g) → CCI4(g) + 3HCI(g) (a) Express the rate of reaction with ...

A: We are to write the rate of reaction for given reaction CH3Cl + 3Cl2 → CCl4 + 3HCl and, [HCl] = 0.02...

Q: The particles in a substance are moving and sliding past each other, but they are still in contact. ...

A: This question is related to state of matter. Matter exist in three phases: Solid, Liquid and Gas.

Q: rate=k [H-][L] Use this information to answer the questions be What is the reaction order in H2? Wha...

A:

Q: 4. What is observed when th Na2SO3 solution is added to the CuCl2? 5. Which gas can be smelled when ...

A: As Student asks for doing answers from question number 4 ---- Ans. 4) When Na2SO3 is added to the Cu...

Q: 1. CH,CH,CI, AICI, 2. Cl, FeCl, D. AIC3 E. NH2 AICH

A:

Q: mass

A:

Q: 20 40 60 80 100 120 Temperature (°C) University of VWisconsin, https://wisc.pb.unizin.org/minimisgen...

A: Vapor pressure is the pressure exerted by a vapor in equilibrium with the solid or the liquid phase ...

Q: What is the hydroxide concentration in a solution with a pH of 12.16 at 25 °C?

A:

Q: CH3 CH3 СООН СООН NO2 ŠO3H ŠO3H Identify the reagents represented by the letters in the above reacti...

A: Reaction involved following concepts 1) Fridel crafts alkylation 2) sulphonation 3) oxidation of ben...

Q: situation is represented by a solubility curve.

A: In this question we have to explain how the equilibrium is attained when the solution or mother liqu...

Q: In a calorimeter experiment, NaOH and HNO3 underwent a neutralization reaction and produced 0.075mol...

A: Neutralization reactions are generally exothermic and thus ΔH is negative.