Given the reaction 3Mn2+ + 2MnO4 + 2H₂O -> 5MnO2 + 4H+, estimate the loss rate of Mn2+ and production rate of MnO2 when the rate of loss of MnO4 is 5 x 10-7 mol/L.min.
Q: What volume of 0.10 m NaOH can be prepared from 250. mL of 0.30 m NaOH?
A: Given : intitial molarity = 0.3 M Initial volume = 250 mL Final…
Q: f AgNO3 adsorbs on the surface of AgCl precipitate, this may cause negative error. TRUE OR FALSE
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: What is the entropy when 1.39 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]
A:
Q: The relative polarities of a few common solvents are given below: Solvent name Relative polarity…
A: In the C-18 hydrocarbon column, the bonded phase is non-polar in nature.
Q: Enter your answer in the provided box. Calculate the following quantity: molarity of a solution that…
A:
Q: Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching…
A: Mass of phosphoric acid = 2.0 x 10 3 g
Q: 1. Complete the following table of physical properties. Show your mole calculations for trans-…
A: Mass of trans-stilbene(MW = 180.25 g/mol) taken = 2.0 g Volume of ethanol taken = 40 mL Mass of…
Q: In the formation of hydrogen iodide, H2 (g) + 12 (g) 2HI (g) Value of the equilibrium constant at…
A: Given: Initial moles of Hydrogen = 1 mol Initial moles of Iodine = 1 mol
Q: D Question 7 Given that HF is a stronger acid than HCIO. Which lists the conjugate bases in order of…
A: Answer:- Conjugate base is formed when an acid loses the proton . So, stronger the acid , weaker…
Q: H3C CH₂CH3 CBr F CH3 I F-CCH₂CH3 Br
A:
Q: 6. If enzymes catalyze both the forward and reverse reactions, but do not change the equilibrium of…
A: The given reaction is S⇔P.
Q: What is ∆G for a reaction where ∆G° = -4.5 kJ/mol and Q = 0.54 at 295 K? (R = 8.314 J/mol ・ K)
A:
Q: Step 1 Add curved arrow(s) to draw step 1 of the mechanism. Modify the given drawing of the product…
A: Given reactants are as follows:
Q: Identify the most stable resonance structure from the following: O O || O III O Both I and II ||
A:
Q: Write the charge balance equation for sulfuric acid
A: Charged balance equation for sulfuric acid is asked , no other reactant is mentioned in the question…
Q: E D 0 Use the distillation diagram above to answer the following questions. Which piece of glassware…
A: In Distillation equipment, cold water flows into the condenser and the role of the condenser is cool…
Q: MISSED THIS? Watch IWE: Measuring AHrxn in a Coffee- Cup Calorimeter, Read Section 7.7. You can…
A: Given that Mass of NH4NO3 = 1.25 g Molecular weight of NH4NO3 = 80.04 g/mol Volume of the solution =…
Q: ropose a synthesis of the compound shown below starting with any carbon containing compounds of five…
A: Solution: To synthesis any organic molecule the first step is to do retrosynthesis analysis which…
Q: “(NH4)2SO4 can not be an ionic compound because it consists of nonmetals only” • Explain why the…
A:
Q: Macmillan Learning At a certain temperature, the equilibrium constant for the chemical reaction…
A:
Q: hi is there a better way to solve these problems because i do not understand anything here
A:
Q: An atom with 15 protons and 18 neutrons would be an isotope of: arsenic Ophosphorus argon sulfur
A: Phosphorus ---> option(b)
Q: 6. You are given a saturated solution of PbCl₂. What is the maximum concentration of [Ag"] that…
A: Answer: When a solution is saturated in PbCl2, it means that is the maximum quantity of PbCl2 that…
Q: five different benzenoid compounds with molecular formula C9H11NO2 which illustrate the functional…
A: Isomers are the compounds having same molecular formula but different arrangement of atoms in space.…
Q: Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers,…
A: Constitutional isomer In structural isomer where substituent are bonded at different position are…
Q: 2. a) Draw structures for all of the b) Circle the structure of the pro K Br₂ hv
A:
Q: In the hydrogen atom, what is the total number of nodes present in a 6d orbital? total nodes: How…
A:
Q: Can you keep 1 M HCl in an iron container. If the answer is no, write a balanced equation for the…
A: balanced equation for the reaction.
Q: A 2.00 L solution contains 0.545 M NH3 and 0.641 M NH4A. (The Kb of NH3 is 1.86⋅10−51.86⋅10-5).…
A:
Q: 5. How many grams of a 5.0% weight NaCl solution are necessary to yield 3.2 g NaCl? 46 g 64 g 16 g…
A:
Q: Express the following measurements in scientific notation: Thickness of a credit card Thickness of a…
A:
Q: Write a balanced half-reaction for the reduction of gaseous oxygen O2 to aqueous hydrogen peroxide…
A: In this question we need to write the balanced eauation for the reduction of gaseous oxygen, O2 to…
Q: 55.0 g sample of nickel (specific heat = 0.433 J/g°C) at 100.0°C is added to 65.0 g of water at…
A:
Q: Calculate the mass of aluminum hydroxide required to make 7.0kg of aluminum.
A: Extraction is the process of isolating metal from its ore. Fro this first of all metal ore is…
Q: Write down the major and minor products obtained from the Diels Alder reaction for the following…
A:
Q: Write a detailed step by step mechanism for the following sigmatropic rearrangement. OH
A: This reaction is an example of Claisen rearrangement. Claisen rearrangement occurs in alkyl aryl…
Q: What is the role of phosphoric acid in the synthesis of the acetylsalicylic acid. please explain…
A: Phosphoric acid is a tribasic acid having three replaceable hydrogens Chemical formula of…
Q: 5. Predict the product/s of the reactions:
A: Given : structure of reactants
Q: Putting it all together! Radioisotopes are often used in diagnostic imaging for detecting disease.…
A: Given: Half-life = 12.7 hours Time = 38.0 hours Order of the reaction = 1
Q: Use the five-step method to pr ns. For any sp
A: To predict the most likely redox reaction in each of the following cases a) During a demonstration,…
Q: The pH of pure water at 20°C is 7.08. What is the value of Kw at 20°C? 4.0 1e-14 X
A: Given, Temperature (T) = 20°C PH of pure water = 7.08 Kw at 20°C = ?
Q: What is an Aufbau Principle?
A:
Q: Isoelectric Point Problem Protein Name isoelectric point (pl) molecular weight Agglutinin (Agg) 4.8…
A: Given that, the isoelectric point (pI) of a protein, Agglutinin (Agg), is 4.8. We have to tell about…
Q: For the equilibrium 21Br(g) 12(g) + Brz (9) K₂=8.5 x 10³ at 150 °C. if 2.8x102 atm of IBr is placed…
A: we need to calculate the equilibrium partial pressure of the species in the reaction
Q: A mom administers 2 teaspoons of Children's Tylenol to her child who has a fever. How many doses…
A:
Q: a. b. C. 2) (50%) Suggests steps to accomplish the following transformations (2-3 steps): Br Br OH…
A:
Q: Identify the VSEPR shape for each compound by dragging the shape type to the box next to the…
A:
Q: What is the melting point of a molecular compound? What is the melting point of an Ionic compound?…
A: 1. Generally melting point of molecular compounds are low. 2. Generally melting point of ionic…
Q: In the circled atom in this structure. CH3 A) four sigma bonds B) three sigma bonds, one pi bond and…
A:
Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…
A:
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
- 8 Reactions between certain organic (alkyl) halides and water produce alcohols. Consider the overall reaction for t-butyl bromide (2-bromo-2-methylpropane). (CH3)3CBr(aq) + H2O(1) →(CH3)3COH(aq) + H*(aq) + Br "(ag) k[(CH3)3CB1]. The accepted mechanism for the The experimental rate law is rate = %3D reaction is shown below. (1) (CH3)3C-Br(aq) →(CH3)3C*(aq) + Br "(aq) [slow] (2) (CH3)3C*(aq) + H2O(1) →(CH3)3C-OH2*(aq) [fast] (3) (CH3)3C-OH2*(aq) →H*(aq) + (CH3)3C-OH(aq) [fast] a) Why doesn't H2O appear in the rate law? b) Write rate laws for the elementary steps. c) What intermediates appear in the mechanism? d) Show that the mechanism is consistent with the experimental rate law. ed to the of consumption of NCa2+ in a drinking water sample was analyzed by the following reactions below: Ca2+(aq) + C2O42-(aq) → CaC2O4 (s) → CaO(s) + CO(g)+ CO2(g) First an excess of C2O42- was added to 0.10 L of the Ca2+ water sample. Then CaC2O4 was precipitated, which was demcomposed into CaO with filtering and some heat. The CaO was measured to be 5.61 mg. What is the concentration of Ca2+ in the original water sample? The MW of CaO is 56.1 g/mol. 0.0100M 0.0010 M 1.00 M 0.100 M The partition coefficient (K) of methylamine (CH3NH2) is 4.50, preferring the organic layer over the aqueous layer in this extraction. The Ka of methylammonium (CH3NH3+) is 2.00 x 10-11. If 10 mL aqueous methylamine solution at pH 11.0 is extracted with 20.0 mL organic solvent, what is the fraction of solute remaining in the water (q)? HINT: methylamine is a weak base. 14.3% 10.0% 18.2% 81.8%The enzyme urease is widely used for determining urea concentration in blood. The Michaelis constant for urease at room temperature is 2.0 mM and k2 = 2.5 × 10^3 s^-1 at pH = 7.5. Based on the kinetic experiment, when 4.76 mM urease was used, the initial rate of the reaction was determined to be 8.1 M/sec. What is the concentration in unit of mM of urea in blood? Please keep your answer to two decimal place. Please convert all concentration unit to mM in calculation. The answer is 4.26 (I would need help getting this answer)
- In any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99One of the many remarkable enzymes in the human body is carbonic anhydrase, which catalyzes the interconversion of carbonic acid with carbon dioxide and water. If it were not for this enzyme, the body could not rid itself rapidly enough of the CO₂2 accumulated by cell metabolism. The enzyme catalyzes the dehydration (release to air) of up to 10 CO₂ molecules per second. Part A Which component of this description corresponds to the term enzyme? Spell out the full name of the enzyme. Submit Part B Request Answer What is the chemical formula for the component of this description that corresponds to the term substrate? Express your answer as a chemical formula. °= | ΑΣΦ 4 Submit Request Answer Part C O A chemical reaction does not occur for this question. ? Which component of this description corresponds to the term turnover number? Express your answer using one significant figure. [Π| ΑΣΦ ? CO₂ molecules per secondO Nitrobenzene C,H5NO2 (molar mass=123.11 g/mol), is quantitavely reduced to aniline C6H5NH2 with metallic tin (atomic mass=118.7 amu) 3 Sn +2 C,H,NO, +12 H+→2C,H,NH, +4 H,0+3SN“ A 0.507 g of impure nitrobenzene sample was treated with 1.044 g of tin. When the reaction was complete, the residual tin was found to weigh 0.338 g, calculate the percentage of nitrobenzene in the sample. a. 50.34% d. 96.12% b. 64.78% c. 77.32% e. 17.57%
- Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand. The ilmenite can be separated from the sand with magnets. The titanium can then be extracted from the ilmenite by the following set of reactions: FeTiO3(s)+3Cl₂ (g)+3C(s)→3CO(g)+FeCl₂ (s)+TiCl (9) TiCl4 (g)+2Mg(s)→2MgCl₂ (1)+Ti(s) Suppose that an ilmenite-sand mixture contains 24.6 % ilmenite by mass and that the first reaction is carried out with a 90.6% yield. Part A If the second reaction is carried out with an 86.3 % yield, what mass of titanium can be obtained from 1.10 kg of the ilmenite-sand mixture? Express your answer with the appropriate units. mTi = Submit O μÀ Value Request Answer Units www Review | Constants | Perio ?The reduction of iron(III) oxide to iron during steel-making can be summarized by this sequence of reactions: 20(s) +0, (g) =2 CO (g) K, Fe,0, (s) +3 CO (g) =2 Fe (1) +3 CO, (g) K2 The net reaction is: 2 Fe,O, (s) +6C (s) +30, (g)=4 Fe (1) +6CO, (3) K Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K, and K,. If you need to include any physical constants, be sure you use their standard symbols, which you'll find in the ALEKS Calculator. K = 믐 Submit Assign Continue MacBook Air F7 000 吕口 000 FA F5Calculate the volume (in L) of Carbon dioxide that will be formed if 25.0 grams of potassium oxalate will react with potassium permanganate in the solution. The density of the carbon dioxide is 1.98 kg/m3 K2C2O4 + KMnO4 + H2O ----> CO2 + Mn (OH)2 + KOH (Molar mass: Potassium hydroxide: 56.11 g/mol; Potassium permanganate: 158.04 g/mol; Water: 18 g/mol; Carbon dioxide: 44 g/mol; Potassium oxalate: 166.20 g/mol; Manganese (II) hydroxide: 88.96 g/mol)
- The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult process is one of the most remarkable success stories of 19th century chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina Al2O3 and water: 2AlOH3s + Al2O3s -> 3H2Og In the second step, alumina Al2O3 and carbon react to form aluminum and carbon dioxide: 2Al2O3s + 3Cs + 4Als -> 3CO2g Suppose the yield of the first step is 83.% and the yield of the second step is 78.% . Calculate the mass of aluminum hydroxide required to make 7.0kg of aluminum. Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.Identify the oxidizing agent in the chemical reaction 5Fe+2(aq) + MnO4-(aq) + 8H+(aq) 5Fe+3 + Mn+2(aq) + 4H2O(l) The answer is ……………………………… Calculate the total number of atoms in 500 Ml OF 0.200 M KNO3 solution. The answer is ……………………………… Mg has three stable isotopes. Given a sample of Mg with the following masses and percent abundances: 24Mg: 23.9850 amu, 58.42% 25Mg: 24.9858 amu, 15.22% 26Mg: 25.9826 amu, 26.36% The average atomic mass (in amu) is …………………… What mass of Na2SO4 is needed to prepare 350. mL of a solution having a sodium ion concentration of 0.125 M The answer is ………………………500 mL of a solution containing 55.3 g aqueous sodium phosphate is mixed with a 500mL solution containing 110.1 g aqueous barium chloride. Once reacted and filtered 50.0g solid barium phosphate are isolated by suction filtration. Determine the limitingreactant, theoretical yield, and % yield for this experiment. MM 164.0 g 208.3 g 602.0 g2 Na3PO4 (aq) + 3 BaCl2 (aq) - Ba3(PO4)2 (s) + 6 NaCl (aq)