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Q: Assuming the final solution will be diluted to 1.00 L , how much more HCl should you add to achieve ...

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Q: • Al. Al • • Al • None of the choices

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Q: The folloWing skeletal oxidation-reduction reaction occurs under acidic conditions. Write the balanc...

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Q: Answer the questions in the table below about the shape of the iodine trifluoride (IF. 3) molec How ...

A: We can determine the number of electronic groups around a central atom from its hybridization. The f...

Q: The solubility of magnesium phosphate is 2.27 x 10°g/1.0 L of solution. What is the Ksp for Mg3(PO4)...

A: Mole = weight/mol. wt. = (2.27*10^-3)/(262.9) = 8.6345*10^-6 mole  It is present in 1 litre. So, mol...

Q: The removal of an ion is sometimes considered to be complete when its concentration drops to 1.00×10...

A: Given: Concentration of ion should be 1.00 × 10-6 M or lesser for the complete removal. And the Ksp ...

Q: CCl2F2(g)+      2H2(g)⟶      CH2F2(g)+     2 HCl(g) If 50.0 g of CCl2F2(g) is converted in this rea...

A: The balanced reaction taking place is given as, => CCl2F2 (g) + 2 H2 (g) →CH2F2 (g) + 2 HCl (g) G...

Q: Name this molecule.

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Q: Consider the reaction 4HCKg) + Oz(g)-2H;Og) + 2C(g) Using the standard themodynamic data in the tabl...

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Q: Which will react faster??

A: Sn2 reaction is  bimolecular nucleophilic substitution reaction 

Q: In submarines, fresh oxygen gas is produced through the following reaction between sodium peroxide a...

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Q: NH2 CI - H3C, Br + N3 + Il!

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Q: Match the term with the defination: 1. The portion of the enzyme where catalysis occurs a. Enzyme b....

A: the correct matching is as follows:  

Q: What is different about steam distillation

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Q: solution is made by titrating 8.00 mmol (millimoles) of HA and 1.00 mmol of the strong base. What is...

A: The calculation is as follows:  

Q: Please describe the structure of atoms. A. Charge (positive,negative, or neutral) a. Electron_______...

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Q: Assign oxidation states to each atom in each element, ion, or compound CuCl2 HSO4^- Cr2O7^2-

A: Given :-  CuCl2  HSO4- Cr2O72-  To assign :-  Oxidation state of each atom in the given compounds

Q: Beer's Law describes the linear relationship between: a.) absorption and wavelength b.) absorption ...

A: Beer's law (also called the Beer-Lambert law) states that the absorbance is proportional to the path...

Q: Adipic acid is an organic compound composed of 49.314 C. 580 g/mol. dinic acid is an organic compoun...

A: Adipic acid is an organic compound composed of 49.314 C. 43.79% O, and the rest hydrogen. If the mol...

Q: 1. Calculate the mass in grams of a single oxygen molecule, 02.

A: Molar mass of O2 is 32.0 g/mol  We have to calculate here mass of 1 molecule of oxygen i.e. O2

Q: The following data was generated by running two TLC plates with four compounds - A, B, C & D (two on...

A: Note: According to our guidelines we are supposed to answer only one question.  Kindly repost other ...

Q: 100 mL of a natural water sample, whose pH is 6,6, requires 12,2 mL of 0,10 M HCl to end point titra...

A: Acidity is a measure of a solution's capacity to react with a strong base (usually sodium hydroxide,...

Q: A chemical reaction is run in which 412 Joules of heat are generated and the internal energy changes...

A: We have to calculate the work done .  

Q: 7) 1) O3 2) Zn / H20

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Q: Predict the Products and Balance the Equation:   __Na2Cr2O7 (aq) +____CoF3(aq) ----> _____   Then, w...

A: The reactants given are Na2Cr2O7 and CoF3.  

Q: he following data was generated by running two TLC plates with four compounds - A, B, C & D (two on ...

A: The Rf value can be calculated by using the following formula Rf=Distance travelled by componentDist...

Q: Aspirin has a conjugated (pi) system and can be treated using the particle in a box model. A. Assumi...

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Q: zinc reacts with hydrochlroic acid to produce hydrogen gas if 50.0 mL of gas is collected over water...

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Q: 5:28 ll 5GE Search HO F- CH, NH, in acetone II III IV (a) (c) HO CH, NH, in MEOH II IV (b) CH;OH CH,...

A: We have to arrange  in order of increasing nucleophilicity for the following given nucleophiles as f...

Q: Consider the given half-reactions that occur at the cathode and anode in an electrolysis reaction at...

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Q: Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s)+ 2Ag+(aq) --> Cu2+(aq)...

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Q: Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a...

A: Given - - > Concentration of NaF = 0.095 M Now CrF3 = [Cr3+] [F-]  

Q: calculate the density of oxygen gas at 0.802 atm and 28.5 degrees celsius .518 g/L 5.49 g/L 1.04 ...

A: We have to calculate the density of oxygen gas.

Q: Two samples of solids have similar reactivity with acids and similar densities. Their masses and vol...

A: Extensive properties are the ones whose value depend on the size of the system like mass , volume ,e...

Q: Lead has an atomic number of 82. Which statement describes all neutral atoms and ions of lead? O Neu...

A: An atom consist of three particle proton neutron and  electron 

Q: Calculate the solubility of PBF2(s) in a 0.550 M Pb(NO3)2(aq) solution? (Ksp for PBF2 = 3.6 x 10-8) ...

A: Let the solubility of PbF2(s) is s M  PbF2 = Pb^2+ + 2F^-       s           s           2s  Also, Pb...

Q: The boiling point of benzene is 80ºC. Which pair of samples will have the same average kinetic energ...

A: Boiling point is the temperature at which the vapour pressure of liquid is equal to the atmospheric ...

Q: You place a piece of unknown metal in the oven and heat it to 185°C.  You then place the metal into ...

A: Given: Mass of metal = 346 g. Volume of water = 250 mL. Initial temperature of water = 24.1 oC Final...

Q: If 1.00 g of MGF2 (MM = 62.31g/mol) is added to 500. mL of pure water, how many grams will dissolve?...

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Q: Which reaction is fastest out of each pair

A: Given: 3 pairs of SN1 reactions.  

Q: Calculate the density of Freon 12 in g/L, CF2Cl2, at 35.0 °C and 0.962 atm.  Freon-12 is a major cau...

A: Given: Pressure of gas = 0.962 atm. And temperature = 35.0 oC Molar mass of CF2Cl2 = Atomic mass of ...

Q: Be sure to answer all parts.   Consider the combustion of butane gas:   C4H10(g) +  13/2 O2(g)  →  4...

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Q: What’s the stronger nucleophile in each pair?

A: How to decide strong nucleophile ( strong base). Step 1 : take conjugate acid of the base. Assign th...

Q: (a) Identify the number of electrons in the ground-state outer shell of atomic oxygen (atomic number...

A: Given :-  Name of element :  Oxygen  Fluorine  To determine :- total number of electrons in the ou...

Q: There are three possible Lewis structures for NCS-, the thiocyanate ion. Draw the three possible res...

A: Introduction: Resonance structure reveals a set lewis structure that generally represents the molecu...

Q: The tabulated data were collected for this reaction at 298 K: -> Time(min.) [A] (M) 4.00 0.3006 4.80...

A: The solution is given below -

Q: While resting, the average 70-kg human male consumes 14 L of pure O2 per hour at 25 °C and  0.95 atm...

A: Moles of O2 consumed can be calculated by using ideal gas equation

Q: In the molecule below, how many unique water sites are present by symmetry (i.e. how many water mole...

A: Octahedral is a symmetrical structure i.e. all the six coordination sites in an octahedral structure...

Q: Which of the following aqueous solutions are buffer solutions? (Select all that apply.) D0.19 M NAOH...

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Q: During a lab preparation of aspirin, a student used 0.98 g of salicylic acid and an excess amount of...

A: Given: 0.98 g of salicylic acid and an excess amount of acetic anhydride react to produce 0.65 g of ...

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.