Make a Bjerrum-type plot for H2S- HS--S2-. To start: a) Write out the dissociation equilibria (the reactions) and then write out the equilbrium constant expression for each one of these...

Q: A 5.16% (w/v) of aqueous glucose has mL of solution. g of glucose in 150.0

A: Given :-  % (w/v) aqueous glucose solution = 5.16%  Volume of solution = 150.0 mL  To calculate :- m...

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Q: Consider the molecule below: Which of the following statements is/are true about the more stable cha...

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Q: Class the protein types in human body

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Q: What is the major organic product of the following reaction? 1. R2BH 2. H2O2, HO- OH HO IV II %3D

A: In this reaction , Reactant is a terminal alkyne as it have triple bond at its terminal.  The reagen...

Q: C6H5N is a weak base. Adding C,H5NHCI to water will the pH and the pOH. Fill in the blanks: decrease...

A: When hydrogen ion concentration is more then pH decreases and pOH increases.

Q: On what amino acid do caspases specifically cleave their substrates? (Choose p20/p10 dimers cleave c...

A: The correct matching is as follows:  

Q: topic:  Proper Use and Calibration of the pH meter What is it necessary to rinse the pH electrode w...

A: It is necessary to rinse the pH electrode with distilled water every after pH reading: 

Q: QUESTION 11 How would you carry out the following conversion? =-CH3 O (1) H20, H2SO4/H9SO4; (2) H2, ...

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Q: A 30. Use the molecular orbital diagram to figure out the electr configuration for N2. The bond orde...

A: Given:-

Q: H3O* CIF3 PF5

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Q: A patient is having an allergic reaction and takes a 25.0 mg tablet of the over‑the‑counter antihist...

A: Given that, a patient has an allergic reaction and takes a 25.0 mg tablet of an antihistamine diphen...

Q: Which reagent(s) and/or condition(s) are needed for positions 1 and 2? 1. OH 2. Br Br

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Q: In lab two dikferent mobile phase compositions were used for column Chromatoghaphy. DiSCUSShow the h...

A: The solution of the answer is given below:

Q: Given the first order reaction A(g)  -- >  B(g)  +  C(g)  + 3D(g) with a rate constant of 6.0x10-4 s...

A: Given :-  A(g) → B(g) + C(g) + 3D(g)  Reaction is first order  K = 6.0x10-4 s-1  Initial concentrati...

Q: Use the References to access important values if needed for this question. The compound cyclohexanol...

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Q: Given: 2L Distilled Water 500mg Ascorbic Acid Tablet To answer: 1. Find the amount of distilled ...

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Q: Specify the configurations (R or S) at ALL chiral centers in the molecules below. Please note that s...

A: R and S- configuration is named on basis of CIP rule.

Q: The reaction of 10.0 mL of 0.125 M NaOH and 5.0 mL of 0.500 M HNO3 gives a temperature rise of 1.36 ...

A: Answer: Acid and base neutralization reaction is an exothermic reaction and heat of neutralization i...

Q: 2) Calculate how you would prepare 1.000 / of a pH 9.50 buffer made from NH3 and NH,CI. You are prov...

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Q: Consider the following reaction. Pb(NO3)2(aq) + 2 KC(aq) → PBCI2(x) + 2 KNO3(y) Which species would ...

A: Spectator ions are those which present in both side of a reaction and does not take part in the reac...

Q: A scientist measures the standard enthalpy change for the following reaction to be 316.2 k] : H,S(g)...

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Q: I have the density of solution that is 1.092g/ml in an unknown solution, how can I get the sucrose s...

A: Plot of density vs % of sucrose solution  

Q: Which of the following statements is/are true about the mirror-image stereoisomer of the molecule, s...

A: This ques is related to sterio-chemistry Two compounds are said to be sterio-isomers if they have sa...

Q: A sample of solid 9,10-phenanthrenediol (C14H1002) that weighs 0.6417 g is burned in an excess of ox...

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Q: Identify the major product(s) for the following reaction. Select all that apply. If the reaction doe...

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Q: The gas butane, C4H10(g), can be used in welding. When butane is burned in oxygen, the reaction is: ...

A: Chemical equation :

Q: Consider a 2.938 mol sample of C4H8. How many atoms of H would be in this sample?

A:   1 mol of sample contains = 6.022 x 1023 particles  = avogadro number of particles (NA)  1 mole of ...

Q: Now it's your turn to practice retrosynthesis and forward synthesis using the reactions from Ch. 7 a...

A: Hydroboration-oxidation of alkene gives Anti-marknonikov's product(terminal alcohol).  Oxidation of ...

Q: Why is it necessary to immerse and store the pH meter in saturated KCl? What is the purpose of satur...

A: pH meter is an instrument which is used to measure the pH of any solution. Since it is an instrument...

Q: Consider the molecule shown below. NH2 Он Which of the following statements is true regarding this s...

A: To predict the correct option we have to draw proper chair conformation where it faces less steric i...

Q: A solution contains 0.0100 M Co+ and 0.0300 M Ni²+ . What is the concentration of the first cation w...

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Q: What is the difference between a bleach safe for white clothes and those that are considered safe fo...

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Q: 2. Calculate [A]/ [HA] ratio of phosphoric acid species presents in blood at pH=7.4. Identify specie...

A: Henderson Hasselbach equation is used in the preparation of a buffer.  pH = pKa + log [base][acid] T...

Q: The molecule shown below is a naturally occurring organic molecule that has antibiotic activity. How...

A: A chirality center is a carbon attached to four different atoms/groups.   

Q: How many moles are in 1.06 x1020 atoms of iron?

A: Given :- number of atoms of iron = 1.06 x1020 atoms  To calculate :- number of moles of iron

Q: II. How many number of distinct proton environments would you predict if you observe three (3) signa...

A: Number of signals in NMR = 3

Q: Based on the initial rates given below, determine the rate constant, k for the following reaction. N...

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Q: Consider a voltaic cell with 2 electrodes (one of them is an Aluminum electrode, and the other is un...

A: Half-cell potential value of Aluminum =  -1.662 V Voltmeter reading =  3.386 V  

Q: HCIO is a weak acid (K, = 4.0 × 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a...

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Q: What are the 3 problems associated with high soluble salts in your water?

A: Mainly Salts of sodium [NaCl,NaF] , potassium [KCl,kbr], bicarbonates [Ca(HCO3)2],ammonium and many ...

Q: ) You are given an aqueous solution contaminated with the following molecule. Decide if you would us...

A: Given Compound  Solvents for extraction = Diethyl ether and water

Q: 6. Answer the following questions involving organic synthesis:

A:   a. Alkene upon dehydrogenation with Pd-C / heat gives an alkyne   (or) first chlorination of alken...

Q: Consider a 3.570 g sample of C4H10. How many molecules are in this sample?

A:                                     Mass of C4H10 = 3.570 g       Molecular mass of butane (C4H10)= ...

Q: QUESTION 1 a) Define rate of reaction. Write the expression to show the relationship between the rat...

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Q: QUESTION 4 The equilibrium constant, Ke for the following reaction at 698 K is 54.8. X2 (g) + Y2 (g)...

A: Given data : Kc = 54.8 [X2] = [Y2] = 0.020 M [XY] = 0.530 M

Q: What would be the effect of changing the mobile phase in the base/base extration of 3-nitrotoluic ac...

A: Mobile phase components should be non-hazardous and non-toxic. They should not pose any health hazar...

Q: 3. For the reaction 2NO (g) +2 H2↔ 2 H2O (g) + N2 (g) a. Write the equilibrium expression for the re...

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Q: Calculate the average speed of oxygen (O2) molecules in a gas at T = 202 K, O2 atomic mass is 32 am...

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Q: Consider the same 1.0 M solution of H2A (Ka1 = 1 x 10-6 and K22 = 1 x 10-1 What is the concentration...

A: The concentration is taken same ie 1 molar in each case ie H2A and HA-.