2. What are the characteristics of an ideal precipitate? Using the Von Weirman ratio, explain the different methods that you can perform to make the precipitate more ideal?
Q: 7. The general electron configuration for atoms of all elements in Group 5A is A) ns'np B) ns²np³ C)…
A: We have to select the general electron configuration for group 5A elements
Q: For his first experiment, Samuel obtains samples of solid acetic acid powder and solid sodium…
A: Acd-Base titration in which the acd and base reacts with each other to form the salt and water. The…
Q: 7. In potentiometric measurement, any change in cell potential is due to a change in the potential…
A: Given- Potentiometric titration statement To find- the statement is true or false
Q: When acetophenone, hydroxelamine hydrochloride, and sodium hydroxide are reacted to synthesize…
A:
Q: 3. How many molecules of ammonia, NH3, are present in 0.522 moles of ammonia? A) 3.14 x 1023 B) 8.67…
A:
Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…
A: Given the melting point of the substance, X = 75. oC Given the heating of the substance X starts at…
Q: You add a 5.00 g piece of ice to 25.00g of water at 20 °C. Calculate the temperature of the water…
A: Given : Mass of water = 25.00 g Temperature of water = 20°C Mass of ice = 5.00 gm Specific heat…
Q: The diagrams 1 to 3 below can be arranged to show the mechanism involved in a familiar reaction. The…
A: Epoxides are three membered ring systems. These ring systems are highly strained and thus, are…
Q: 1. 2. 3. Pb(NO3)2 _Cl₂ + C3H6+ + ______K₂CrO4 --> KCI + KI --> _0₂ --> PbCrO4 + ____I₂ _CO₂ + H₂O…
A:
Q: Consider a process for which AH = 211.0 kJ y AS = -57.0 J/K How will increasing temperature affect…
A:
Q: A small carbon dioxide gas cylinder used to propel paint balls has a mass of 56.3g. When all the gas…
A: I have given the answer in the explanation section. Hope you will understand that.
Q: STARTING AMOUNT X A shop-vac is capable of pulling in air at a rate of 210 ft3/min. What is the rate…
A: We have to convert the rate in units of L/s
Q: give a specific example of gravimetry analysis by enumerating the steps of the analysis
A:
Q: Use the Brønsted-Lowry theory to identify the acid, the base, the conjugate acid, and the conjugate…
A:
Q: b) Formation of an ester is an equilibrium process. Mechanisms are often vastly different depending…
A: a) In the acid catalysed esterification, acid activates the carbonyl group of the acid and then the…
Q: If NaHCO3 solution was used to dissolve aspirin, why can’t NaOH be used instead and why was the…
A:
Q: 0.9% (w/v) sodium chloride (MW = 58 g/mol) solution (Normal Saline Solution) has an osmotic pressure…
A: #1: Given the osmotic pressure of the solution, π = 3.91 atm Temperature, T = 25 +273.15 = 298.15 K…
Q: Reaction Stoichiometry and Mass Ratios (two parts) What mass of the second-listed reactant in each…
A:
Q: 5. Using pictures and words, explain why triflate, CF3SO3, is such a good leaving group.
A: To explain why triflate, CF3SO3- is such a good leaving group using pictures and words.
Q: a) • Name the compour I I CH
A: IUPAC nomenclature is used for naming the organic compound as recommended by international union of…
Q: 17. What type of chemical bond holds the atoms together within a water molecule? A)Ionic bond…
A:
Q: Addition of PPh3 to a solution of Wilkinson’s catalyst, [RhCl(PPh3)3], reduces the turnover…
A:
Q: Show calculations to determine unknown concentration of CH3COOH
A:
Q: The diagrams 1 to 3 below can be arranged to show the mechanism involved in a familiar reaction. The…
A: This is bond opening of epoxide in acidic medium.As oxygen has lone-pair of electrons so oxygen…
Q: PLEASE DON'T WRITE YOUR ANSWER ON A PAPER. I CAN'T UNDERSTAND HANDWRITTEN. 5. Which would make a…
A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…
Q: Calculate the non-standard cell potential (in V) for the following reaction at 94.68 °C with the…
A:
Q: ructure wi
A: Given as, Covalent Compound Lewis Structure with correct geometry Geometry Name Polar or…
Q: True or False Arsenic sulfide is basic in nature.
A: To answer: Arsenic sulfide is basic in nature.True or False
Q: CH3COO + H2O → CH3COOH + OH- K₂=1.8x10-5(for acetic acid)
A:
Q: CH,Na heat H₂O/H+ KMnO4, H₂O, OH Cold 1. Hg(OAC)2, H₂O 2. NaBH4, OH'
A:
Q: Determine the d electron configuration of [OsCl6]3-complex.
A:
Q: Consider a molecule with the molecular formula C6H11BrO2 Draw a structure based on the data…
A: The structure for the given molecular formula C6H11BrO2 is given below
Q: What is the maximum number of electrons within an atom that can have the quantum numbers n = 4, l =…
A:
Q: The diagrams 1 to 3 below can be arranged to show the mechanism involved in a familiar reaction. The…
A: Here we have to write the correct sequence of steps involved in hydration of epoxide in acidic…
Q: what are conditions for each reaction
A: Alkenes are the organic compounds that contain double bond between carbon atoms in a compound.
Q: 1. HF (aq) → H+ (aq) + F- (aq) K = 6.8 x 10-4 II. H₂C₂O4 (aq) = 2H+ (aq) + C₂0²- K = 3.8 x 10-6 What…
A: Equilibrium constant is ratio of concentration of products to concentration of reactants .
Q: One of the most important applications of ion exchange is the separation of large molecules from…
A: Anions are negatively charged and cations are positively charged.
Q: 4NH3(g) + 50₂(g) = 4NO(g) + 6H₂O(g) AH° -1000. kJ K = 1.35 = When the reaction is altered as below,…
A: we have to calculate the equilibrium constant
Q: The partition splits the two gases (Ta, X), and (Tb, Y). When partition is removed, it becomes (T,…
A:
Q: A system at constant pressure experiences the following: The thermal energy increases by a magnitude…
A: If energy is absorbed by the system, the sign will be positive. If energy released by the system,…
Q: Which of the following would you expect to exhibit paramagnetism? III. S²- IV. Mg2+ I. Ni O O II. C…
A:
Q: 14. Which one of the following A) Mn²* and Ar B) Zn²+ and Cu²+ C) Na* and K pairs are isoelectronic?…
A:
Q: The reaction (CH3)3CBr + OH(CH3)3COH + Br in a certain solvent is first order with respect to…
A: Given : Order of reaction with respect to (CH3)3Br = 1 Order of reaction with respect to OH- = 0…
Q: Sketch submicroscopic drawing: a NaCl solution (use 5 water molecules and 1 unit of NaCl)
A: A solution formed by mixing of a solute in the solvent. The solubility will depend on the like…
Q: 3. How many moles are in 420g of copper (II) sulphate (CuSO4)? 4. What is the amount in moles of a…
A: The number of moles(n) formula is: n= (mass of substance) / (mass of one mole)
Q: What are the possible values for the missing quantum number in the following quantum number…
A: The state of an electron in an atom is determined by a set of four quantum numbers. They are,…
Q: Examine the galvanic cell below. Ni Volts 1.0 M t 1.0 M Ni (NO₂)₂ KNO3 † 1.0 M AgNO₂ The reaction…
A: Given, Galvanic cell:
Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 77.1 g of ³2P, how…
A:
Q: 8. K=1,7 x 10-10 for the following system which represents the dissolving of silver chloride AgCl…
A:
Q: 11) Enterobactin is a molecule produced by bacteria to bind with Fe" ions in solution so that it can…
A: The three-dimensional structure of the molecule is stabilized by intermolecular H-bonding…
Step by step
Solved in 4 steps
- What are the characteristics of an ideal precipitate? Explain using the Von Weirman ratio the different ways that you can do to make the resulting precipitate more ideal?Why are many ionic precipitates washed with electrolyte solution instead of pure water?Why a precipitate of manganese dioxide be removed from the potassium permaganate solution before standardization?
- What do you call the process wherein a newly-formed precipitate is subjected at elevated temperature to form a purer and larger recrystallized particles? complexation digestion flocculation neutralizationwhy does this happen?: After the sulfuric acid was added to the lead nitrate, a white precipitate formed immediately. After letting this sit for a few minutes, the precipitate fell to the bottom of the test tube. We measured about 0.5 cm of precipitate at the bottom of the test tube. After the nitric acid was added, there was 1 cm of precipitation accumulated at the bottom of the test tubeA solution is prepared by dissolving 1.40 g of silver sulfate in 100 mL of hot water. Will a precipitate form if the solution is cooled to 25oC? Assume that a negligible change in volume occurs during the operations. (Ksp = 1.2 x 10-5).
- 50.0 mL of a 0.60 M solution of pyridine in ethanol is to be prepared by measuring out a known volume of pure liquid pyridine and diluting to 500 mL with ethanol. The molar mass of pyridine is 79.1 g/mol, and its density at room temperature is 0.982 g/mL. What volume of pyridine is required for this solution?If 0.454g of thyroxine is dissolved in 10g of benzene, the freezing point of the solution could be measured as 5.144 C. Pure benzene freezes at 5.444C and has a value for the molal freezing point depression constant of Kf of 5.12C/m. What is the approximate molar mass of thyroxine?Perform these calculations for nickel(II) carbonate. (a) With what volume of water must a precipitate containing NiCO3 be washed to dissolve 0.100 g of this compound? Assume that the wash water becomes saturated with NiCO3 (Ksp = 1.36 × 10–7).(b) If the NiCO3 were a contaminant in a sample of CoCO3 (Ksp = 1.0 × 10–12), what mass of CoCO3 would have been lost? Keep in mind that both NiCO3 and CoCO3 dissolve in the same solution.
- Why homogenously formed precipitates are better suited for analysis than a precipitate formed by direct addition of a precipitating agent?1.0 GRAMS of an electrolyte was dissolved in 29 grams of water, the resulting solution was found to have a molarity of 0.437 mol / L. The freezing point of the solution was determined to be -4.96°C. The freezing point depression constant for water is -1.86°C and pure water may be assumed to freeze at 0°C. If the molecular weight of the electrolyte is 179.7 g/mol and it takes 15 minutes to perform the experiment, how much water was used (grams) ?Below is a solubility table for an unknown organic soli. The solid is white with a melting point of 75°C . Which of the solvent would you use for recrystallization? Explain your choice