The metal content of iron in ores can be determined by a redox procedure in which the sample is first oxidized with Br2Br2 to convert all the iron to Fe3+Fe3+ and then titrated with Sn2+Sn2+ to reduce the Fe3+Fe3+ to Fe2+Fe2+. The balanced equation is 2Fe3+(aq)+Sn2+(aq)→2Fe2+(aq)+Sn4+(aq)   What is the mass percent FeFe in a 0.1840 gg sample if 13.52 mLmL of a 0.1015 MM Sn2+Sn2+ solution is needed to titrate the Fe3+Fe3+?

Q: Using the numbers above the dot structures, click the numbers of the correct dot structures only.…

A: A dot structure is a representation of the valence electrons of an atom that uses dots around the…

Q: Using symbols □ for S atoms, and ○ for O atoms, draw the simplest representation of reactant and…

A: Following representation observed:-

Q: Name: NetID: 22. A buffer system is established to have 3[HA] = [A]. Given that the pK, is 7.2, what…

A:

Q: CHM 2410Z - Organic Chemistry I Lab 2) Consider the following molecules and choose the two…

A:

Q: Draw the Lewis Structure of HNO3 Molecular Geometry? Ideal Bond Angles? Are there Polar Bonds…

A: #Lewis structure of HNO3: While drawing the Lewis diagram, first of all we count the total number of…

Q: CH4 (9) +20₂(g) → CO₂(g) + 2H₂O(l) H-891 kJ a. Calculate the enthalpy change if 2.01 g methane is…

A:

Q: What is the energy of a photon with a frequency of 8.40 x 1014 s¹? (h= 6.626 × 10-34 J·s)

A:

Q: If you were making a stock solution of 0.200 M cobalt (II) chloride hexahydrate, what mass of cobalt…

A:

Q: A student ran the following reaction in the laboratory at 697 K: 2HI(g) H2(g) + I2(g) When he…

A: Given reaction: 2HI(g) ⇌ H2(g) + I2(g) The initial pressure of HI = 4.75 atm The equilibrium partial…

Q: For each solute, click the button under the better solvent. solute KC1 1₂ NaCl Which is the better…

A:

Q: The reaction of hydrogen chloride (g) with oxygen (g) to form water (g) and chlorine(g) proceeds as…

A:

Q: The equilibrium constant, Kp, for the following reaction is 1.04x10-² at 548 K. NH4Cl(s) NH3(g) +…

A:

Q: Which is not a plausible organic product of the reaction below? ď A H₂O B ? C D

A:

Q: Calculate the percent yield if 48.6 gg of nitrobenzene is obtained from 27.7 gg of nitric acid with…

A: Given, C6H6(l) + HNO3(aq)→ C6H5NO2(l) + H2O(l) Observed yield of nitrobenzene (C6H5NO2) = 48.6 g…

Q: Accurately using a pipette is a skill you have gained in Chemistry 1. Select all correct statements…

A: option a is incorrect because if small amount of liquid remaining in the pipette would be blown, it…

Q: 1.5 Give two examples of inorganic precipitation agents and elements that can b precipitated using…

A: Precipitation agents are the chemicals that are added to form solid i.e. to cause precipitation.…

Q: 14 2. Equal amounts of two different gases C₂H and CH are in two different 1.0 L containers at 40°C.…

A: We know that, Crms = (3RT / M)1/2                So, C α (1 / M)1/2                     Between two…

Q: What is the Diff Quick, the steps and what does each step contain?

A: Diff Quick: Various pathology specimens can be quickly stained and distinguished using the…

Q: A specific steroid has a Amax of 285 nm and a molar absorptivity e of 11, 500 L mol-¹ cm-¹. What is…

A:

Q: Quantum numbers arise naturally from the mathematics used to describe the possible states of an…

A: According to quantum mechanics, there are four types of quantum numbers. The electrons are filled in…

Q: Draw the Lewis Structure of N3- Molecular Geometry? Ideal Bond Angles? Are there Polar Bonds…

A: we have to draw the Lewis structure of  N3-

Q: At 100°C, the standard molar is the enthalpy of vaporization ∆vapH⊖m of water 40.7 kJ mol-1 while…

A: According to Kirchhoff's equation, we have ∆Hvap, T2- ∆Hvap, T1=n×∆C×∆T ... (1) Here,…

Q: Silicon (28 g, 1.0 mole) and oxygen (128 g, 4.0 moles) are reacted in a sealed container. At the end…

A: Given  Si = 1 mole , 28 grams O2 = 4 mole = 128 grams 1 mole of Si react with 1 mole of O2 to give…

Q: For every 1 mole of H2SO4, how many moles of NaOH are needed to reach equivalence in the titration?…

A:

Q: The equilibrium constant, Kp, for the following reaction is 10.5 at 350 K: 2CH2Cl2(g) CH4(g) +…

A:

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A:

Q: Calculate the pH of a solution that contains 0.00415 M HI and 0.400 M benzoic acid. (Ka for benzoic…

A: Given data : Concentration of HI = 0.00415 M Concentration of benzoic acid = 0.400 M

Q: These equations represent precipitation reactions. Rewrite them as complete ionic equations. Include…

A: The complete ionic equation is written by splitting all the soluble ionic compounds as the…

Q: Intravenous digitalizing doses of digoxin in children are 80% of oral digitalizing doses. Calculate…

A: Given that The dose of the drug is 80% of oral dose. Oral dose is 10 mcgs/kg. We have to calculate…

Q: Calculate the frequency in hertz of electromagnetic radiation that has a wavelength of 548.0 nm. (c…

A: Given :- wavelength of radiation = 548.0 nm  c = 3.00 × 108 m/s  To calculate :- frequency of…

Q: A student ran the following reaction in the laboratory at 1080 K: 2SO3(9) ? 2SO2(g) + O₂(g) When she…

A: Answer:- This question is answered by using the simple concept of calculation of equilibrium…

Q: ucrose (table sugar) has a molar mass of 342.30 g/mole. How many sucrose molecules are in a…

A: Mole is equal to weight of substance divide by it's molar mass

Q: A hot 101.5 g lump of an unknown substance initially at 157.8 °C is placed in 35.0 mL of water…

A: we have to identify the unknown substance

Q: Consider 100 ml of NaOH solution prepared from 0.4 g  of NaOH:  The pH of the solution is ___

A:

Q: A student ran the following reaction in the laboratory at 1080 K: 2SO3(9) 2S02(g) + O₂(g) When he…

A:

Q: As we continue to explore equilibrium, it is important that we look at LeChatelier's Principle. This…

A: Your argument is true.  As per LeChatelier's Principles if we remove the product from reaction…

Q: Draw the Lewis Structure of BF3 Molecular Geometry? Ideal Bond Angles? Are there Polar Bonds…

A: BF3  have trigonal planner Geometry . these can be explained as:

Q: Which of the following will react with Tollen's reagent? O 요 CH₂CH OH CH₂ C CH3 CH3 OCH3CH₂OCH₂CH3 i…

A:

Q: The equilibrium constant, Ke, for the following reaction is 7.00 x 10-5 at 673 K. NH₂I(s) NH3(g) +…

A: This problem is based on equilibrium. We know that for solids the concentration is taken as 1 . So…

Q: Calculate the pH at 25 °C of a 0.49 M solution of anilinium chloride (C6H5NH3C1). Note that aniline…

A: Answer: This question is based on Ostwald's dilution which suggests that when a weak acid is…

Q: What is the mass, in grams, of 1.311x10^24 molecules of Naproxen, C14H13NaO3

A:

Q: e triple point of X?

A: Qn.1 Which is the solid one-phase region? Ans. Region 'A' is the solid one-phase region. Qn.2 Which…

Q: 3. Determine the K₂ and pK₂ (to two decimal places) for an aqueous solution containing 0.19 M of a…

A:

Q: sample of 0.720 g contains only NaHCO3 and Na2CO3. A student took 0.360 g of the sample and let it…

A:

Q: 20. What is the pH of the resulting solution when 0.456 g of sodium acetate are dissolved into 1 L…

A: 20. 0.456 g of sodium acetate are dissolved into 1 L of water at 25 °C . The Ka of CH3COOH is 1.8…

Q: solution? 70.0 0.014 70. 140.

A: Concentration is inversely proportional to dilution.  Hence on dilution concentration decreases

Q: At 298K, the equilibrium constant for the following reaction is 1.70x10-²: H₂SO3(aq) + H₂0 H30+ (aq)…

A:

Q: Calcium oxide and water react in an exothermic reaction:  CaO(s)+HO(0)-> Ca(OH)%(s) AHn-64.8 kJ/mol…

A:

Q: A green beam of light has a wavelength of 507nm. What is the frequency of this light?(hz) What…

A:

Q: solution of 275 mL of 0.725 M hydroiodic acid reacts with excess magnesium in single  displacement…

A:

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.