Buffer Calculation Question: Calculate the amounts of chemicals needed in grams. 500 mL 0.14 M CAPS buffer, pH 10 10 mL 6 mM NAD+ 20 mL 0.15 M sodium lactate

Q: 5. Calculate the change in energy required to convert 250. g of substance X from a gas at 121.00°C…

A: Answer: Energy change for the mentioned process will occur in 5 steps: 1. Cooling of gas up to its…

Q: Calculate how much 95% ethyl alcohol will be required to dissolve 0.75 g of sulfanilamide at 78oC

A: Given that, the solubility of the sulfanilamide in ethyl alcohol is 178.44 mg/mL at 78 oC…

Q: Quantum mechanical model limits the description of an electron's position to an area within an…

A: As atomic orbitals are the region around the nucleus where there is a probability to find the…

Q: Based on the data, complete the table. Species A B C Molar Mass (g/mol) 40.078 39.09 32.065 Density…

A: A physical quantity is a physical property of a material or system that can be quantified by…

Q: When a-tocopherol reacts with radicals (such as peroxyl radicals ROO, oxygen radicals, HO), it forms…

A: The resonance structure of given compound can be explained as:

Q: 3. Sulfur is applied to the skin for dandruff and itchy skin infection caused by mites (scabies). It…

A: The four quantum numbers for an electron are: 1. Principal quantum number (n) 2. Azimuthal quantum…

Q: If we decrease the concentration of Cl2(g) of the reaction 2NOCl(g) ⇌ 2NO(g) + Cl2(g) ΔH = -72.9…

A: According to Le Chateliar principle  if a system is in equilibrium is subjected to change of…

Q: A graph of Z concentration during a chemical reaction is shown. Determine the average rate Z is…

A: To calculate the average rate and instantaneous rate from the given graph of concentration of Z with…

Q: Write the chemical equation for the complete combustion of butan-2-ol.

A: Combustion is a chemical reaction in which a fuel (such as a hydrocarbon, hydrogen, or alcohol)…

Q: A solution of DNA has a concentration of 10 nanograms/ml. The experiment calls for 8.2 microliters…

A: Given concentration of DNA solution is 10 nanograms/mL.

Q: A patient needs to take 50 mg of Tylenol every 4 hours. If each Tylenol tablet contains 25 mg of…

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Q: A sample of argon initially has a volume of 4 L at 25°C. What is the new volume if the temperature…

A: Given Volume of gas = 4.0 L = Vi Temperature of gas (initial ) Ti = 25 0C = 273+25 = 298 K Final…

Q: Pu-238 undergoes alpha decay .show an equation

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Q: How would you carry out the following transformations? CH₂ CH₂ CO₂H CO₂H

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Q: 4. If an object has a density of 4.05 g/cm³, what is its density in units of kg/m³? a. 4.05 x 10¹…

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Q: 1. A 2.2g methyl paraben (mEq of 0.152) was assayed using 50 ml of Sodium Hydroxide, 1.250 N and it…

A: We have find out the percent purity of methyl paraben in the sample.

Q: See Figure 2-3. Do an orbital analysis of C-2 (arrows on lines like we did in class). It has a pi…

A: Answer : The concept of intermixing of atomic orbitals of comparable energies of an atom to form a…

Q: Explain how pyrite is used for the benefit of mankind (industrial and/or medical uses).

A: Pyrite is also known as iron sulfide.It has several industrial  and medicinal uses such as:…

Q: Starting with propyne and using any other required reagents, show how you would synthesize (2R,…

A: This question is based on conversion of a organic compound into another organic compound.

Q: You wish to prepare 100.0 mL of a 750.0 ppm w/v sodium (MW = 22.9897 g/mol) solution. How many grams…

A: Given: Volume of solution = 100 mL w/v concentration of Na = 750.0 ppm Molar mass of Na = 22.9897…

Q: The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is…

A: When steam is condensed into water heat energy is released. The heat of vaporization of water at…

Q: 2- Give the common names for the following Alkenes: Ethene, Propene, 2-Methyl propene, and 2-Methyl,…

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Q: Arrhenius Equation A(g) + B(g) → C(g) The rate law for the above reaction is: -d[A]/dt k[A][B] The…

A: In this question we have to calculate the activation en erg(Ea), pre exponential factor (A) and  the…

Q: 23. At 298 K, the total vapour pressure in torr for a mixture of Volatile components A and B is…

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Q: A sample of gas at a constant temperature has an initial pressure reading of 2.00 atm with a volume…

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Q: Complete the following statements. Word bank:  a reaction coordinate lowest slower highest a lower…

A: Answer: All the terms mentioned in the above problem are used to characterize and study the reaction…

Q: See Figure 2-4. The MOST correct line drawing for the molecule shown is O A B

A: We are given structure of an organic molecule and asked to choose the correct bond line structure…

Q: 2. Define the terms and, and give an example each. a. Strong Electrolyte allow large amounts of…

A: The answer for this problem is provided below in great details within the attached figures.

Q: Consider the reaction 2NH3(g) + 3N₂O(g) → 4N2 (g) + 3H₂O(g) for which AH° = − 879.5 kJ and AS° =…

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Q: 1- Round 28.468 x 10 into 3digits.

A: Steps for rounding off a no. :  Underline the digit place to be rounded. Look at the digit i.e.…

Q: A 1370 mL sample of a gas is stored at 21 °C and a pressure of 0.988 atm. The gas is expanded to…

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Q: Interactive 3D display mode H₂ H₂C-C H₂C- VI ΙΟ H₂ C-CH3 -C=C-CH CH₂ Spell out the full name of the…

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Q: [ Give necessary calculation for each) 1. What volume of 0.75 M hydrochloric acid (HCI) stock is…

A: As per bartleby guidelines I answered only first question so please don't mind thanks in advance.

Q: CH2-CH3 CH3-CH-CH-CH2-CH2-CH3 Name these compounds: CH3 Are they isomers with each other? Yes CH3…

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Q: IV

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Q: Consider the reaction HCI(g) + NH3(g)—NH4Cl(s) Using standard thermodynamic data at 298K, calculate…

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Q: Fill in the Blank; Amino acids with ionisable side chains have 1) high 2) low 3) none 4) two 5)…

A: We have been given that amino acid have ionisable side chain.We have been asked to fill the blank in…

Q: Name the following organic compounds: compound CH3 CH3-C- CH₂ - CH₂ - CH3 1 CH3 CH₂ 1 CH3-CH 1 CH₂ 1…

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Q: T he recommended dose of memantine H Cl (N AMEN DA) is: Week 1, 5 mg/day Week 2, 10 mg/day (5…

A: This question is based on simple stoichiometric calculation.

Q: 2) Which is likely to be the most soluble in 3,4-dimethyloctane? b) acetone a) hexane c)…

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Q: each organic reaction, say whether at equilibrium there will be more reactants than products (so…

A: Given Acid - base reactions.

Q: lead solid in aqueous hydrochloric acid Does a chemical change occur? YES NO Cite macroscopic…

A: Chemical change is one when one substance is changed into another substance with the…

Q: 3. Three ways to make 2-ethoxyoctane from 2-octanol outlined below. Predict the product, A B, and C…

A: During SN2 reaction involving breaking of bond at chiral center leads to the inversion in…

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. 1. NaBH4 2. H3O+ H

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Q: The solubility in acetone of organic compound O is measured and found to be 0.762 that would contain…

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Q: Which of the following hydrocarbons is/are aromatic ? You have to select all correct answers in…

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Q: a clear liquid Theoretical yield (mol) Theoretical yield (g) Percent yield (% by mass) Saved

A: The quantity of a product obtained from a reaction is expressed in terms of the yield of the…

Q: Which of the following molecules would exhibit the largest dipole moment? a. CH3CH3 b. CH3CH₂F c.…

A: We have been given four molecules and we have been asked to check which molecule exhibit largest…

Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: In a heating curve, the first plateau ( horozontal line ) corresponds to the melting point. At this…

Q: In the structure of FD&C blue dye, what suggests that it would exhibit optical absorption (i.e.…

A: FD&C blue dye is a food colorant which has the following structure:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.