A 0.600 g sample of a pure, weak monoprotic acid gives end points at 40.0 mL when it is titrated with 0.100 M NaOH. What is the molar mass of the weak acid?

Q: Synthesis the followiong reactions Pt 2H2 1) Cyclohexyne (850-900)C 2) 3) CH3CH,CCCH3 + H,O

A: Given, 

Q: What is the mole fraction of nitric acid, HNO3, in an 8.46% (by mass) aqueous solution of nitric aci...

A: Given that -  Mass percentage of nitric acid, HNO3 = 8.46%  Atomic weights of different atoms are - ...

Q: According to the following reaction: CO (g) + H2O (l)  CO2 (g) + H2 (g) What would you multiply "...

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Q: 1. People who live in colder climates have seen the trucks put or sprinkle salt on the roads when sn...

A: Since you have posted multiple questions, we can answer only the first question according to the Bar...

Q: A 9.5m diameter balloon is filled with helium at 16°C and 205.46kPa. Determine the mass of the heliu...

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Q: product at

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Q: calculate the change in enthalpy for Reaction 2. Reaction 1: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g),C3H8(g)...

A: Given Reaction 1: C3H8(g) + 5O2(g)→3CO2(g) + 4H2O(g)  ∆H1 = -2043 kJ mol-1 Reaction 2: 6C3H8(g) + 30...

Q: Consider the titration of 100.0 mL of 0.250 M aniline, C6H5NH2, (Kb = 3.8 x 10-10) with %3D 0.500 M ...

A: Given: Concentration of C6H5NH2 = 0.250 M Volume of C6H5NH2 solution  = 100.0 mL. And concentration ...

Q: Calculate the percent by mass of the solution containing 8.60g of salt in 95.0g of solution.

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Q: (a) The physisorption of coronene on Au(111) surface at certain partial pressure of coronene is show...

A: Solution of the question is given below: 

Q: f 0.30 M of ammonia solution has a pH of 9.11, what is the H+ concentration of the solution?

A: Given pH = 9.11

Q: 12. In each pair, predict which would have a greater percentage of hydrate in water and explain. 12 ...

A: Hydration of a molecule  depends  upon extent of polarization of molecule. 

Q: 1) What is the product of the following reaction? *note* DMF is the solvent in Br Br- OLi DMF Br Br ...

A: Here the mechanism of reaction will be nucleophilic substitution reaction in aryl system. It is occu...

Q: In the laboratory, a general chemistry student measured the pH of a 0.420 M aqueous solution of ammo...

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Q: Sketch/describe the 1H NMR spectrum for the following molecules. For each signal, predict the chemic...

A: Here we have determine the multiplicity of signal i.e splitting of signal, relative integration and ...

Q: Determine the charge (in C) involved in plating out 1 mole of Fe from a solution of Fe203. O 385940 ...

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Q: In the laboratory, a general chemistry student measured the pH of a 0.446 M aqueous solution of hydr...

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Q: 5.) a.) F-S-F bond angles in OSF4 are 115° and 164° while F-S-F bond angles in SF4 are 101° and 173°...

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Q: Propose an efficient synthesis for the ff. transformations: b

A: a) Transformation 1 -

Q: Please propose a chromatography-based strategy to purify human insulin proteins that have been expre...

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Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: One of the crystalline forms of zinc oxide is a structure where the oxygen atoms are at the lattice ...

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Q: Determine the ground term symbols of the following, 02-, Cu*, Pt*, Er³+, Fe²+, Cr

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Q: The amines are organic weak bases which are nitrogen-containing. In the early days of organic chemis...

A: (1) Generally, an alkaloid contains at least one nitrogen atom in an amine-type structure—i.e., one ...

Q: .Which of the following is an electrolytic cell? a.Pb(s)|Pb2+(aq)||Zn2+(aq)|Zn(s) b.Pt(s)|Fe2+(aq),...

A: 1)  A positive value indicates the oxidation-reduction reaction is a spontaneous reaction. That mean...

Q: The number of atoms in a face-centered cubic unit cell is Multiple Choice 8. 4. 1.

A: Answer: Smallest unit of a solid crystal, by the continuous repetition of whom, the lattice structur...

Q: Br FeBr, + HBr + CH3-CH–CI AICI, + HCI CH3

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Q: Double Indicator Titration Double indicator Titration of 1.000g powdered sample containing either al...

A: In a mixture, NaOH and NaHCO3 can't be present simultaneously since they react with each to form Na2...

Q: 1. compensation by the lungs occurs within several days but is complete. Compensation by the kidneys...

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Q: Propanal and propanone react in a similar way with acidified aqueous potassium cyanide, KCN.  For th...

A: The molecular structure of propanal and propanone is given as follows;

Q: Measure 0.400 g of KMNO. using a 50-mL beaker as the sample pan. Make sure to press the tare button ...

A: Concentration of a solution is the indicator of amount of solute present per fixed amount of solvent...

Q: Which of the following reactions can be used to prepare 3-methyl-3-hexanol? Note: n-Pr stands for no...

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Q: Questions and problems. Answer the following. * W hich substance in each pair has greater intermolec...

A: Here, we have to find the substance in each given pair that has greater intermolecular forces of att...

Q: equilibrium concentration

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Q: Balance the reactions; identify the oxidation and reduction reaction; and identify the oxidizing age...

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Q: Classify each of the following reactions as an addition, elimination, substitution, or rearrangement...

A: a ) this is an example of substitution reaction. Here  -OH substitute Br and form Ch3OH. CH3-Br + KO...

Q: Chemical Kinetics. The following mechanism has been proposed for the reaction of NO with Hz to form ...

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Q: CH3 Br H. CH3 H3C Br H. Br Br ČH3 ОН ОН ОН ОН "Ме `Et

A: 1)Identical structure - the molecule having same molecular formula but different arrangement  of ato...

Q: Calculate the molar mass of each of the following: d. 5H2O e. BrF3

A: See below 

Q: Name the following aromatic hydrocarbons

A: We have to write the iupac name for the following Compound .,  

Q: Acetylene (C,H, gas is often used in welding torches because of the very high heat produced when it ...

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Q: Mean [KIO3] (based on titration) = 0.02451 mol L-1 Standard deviation in the mean [KIO3] mol L-1 Con...

A:   [KIO3] mol L-1 (χi - μ) (χi - μ)2 0.02459 0.00008 6.4 * 10-9 0.02462 0.00011 1.21 * 10-8 ...

Q: Acid-Base Equilibria. Caleulate [OH ] for each of the following sohutions, and indicate whether the ...

A: Determine the concentration of OH- and also determine the solution is acidic or basic or neutral ---

Q: How much heat in kJ is required to transform a 500-g ice at-15°C into tiquid water at 55°C? (Express...

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Q: What is the soil moisture potential () at saturation (enter numerical value only)?

A: Soil water(moisture) potential is the measure of water content in soil. At saturation level it is co...

Q: Given below is the IR spectra for 3,4-dimethyl-1- hexene : 100 80 A 60 40 20 Question: What is "unac...

A: The band maximum is about at 2900 cm-1 which is not acceptable . This problem can arise due to the e...

Q: 4. Chemical Equilibrium. Phosphorus trichloride gas and chlorine gas react to form phosphorus pentac...

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Q: The zincblende structure of ZnS has the relatively large sulfide ions arranged at the lattice points...

A: Here we use the density formula for solid sate chemistry and we can easily find the density. the cor...

Q: Nitrogen dioxide undergoes a reversible dimerization reaction according to the following equation: 2...

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Q: Green plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid wat...

A: Mole ratio - Is the ratio between amount in moles of any two compound involved in a chemical  reacti...