Q: Calculate the Ca2+ ion concentration needed to precipitate CaF2 from a 0.0025 solution. M from NaF.
A: Given that Conc. of NaF = 0.0025 M Conc. of F– = [NaF]= 0.0025 M We know that Ksp for CaF2 = 3.9 x…
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Q: Rank the following carbocations by relative stability H. I I || III IV H || IV <
A: Carbocation has a positive charge carbon atom which has only 6 electron in its outer valency shell…
Q: Locate the chiral centers if they exist and label with R or S nomenclature.
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Q: What is the expression for Kp for the following reaction? A(g) = B(g) + 2C(g)
A: The reaction is given and we have to write the expression for the kp.
Q: In one demonstration of this reaction, 42.00 mL of H2 are collected over water at 25°C. Atmospheric…
A: Given : V = 42.00 mL T = 298 K P = 748 mmHg Tip : by using ideal gas equation…
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A:
Q: Draw the major product of this reaction. Ignore any inorganic byproducts. HBr (1 equiv) H2O2
A: The reaction of the alkene is given and we have to find out the major product of the reaction.
Q: A gas mixture is made by combining 8.8 g8.8 g each of Ar,Ar, Ne,Ne, and an unknown diatomic gas. At…
A: 6
Q: Use the Acid-Base table to write net equations and determine the equilibrium constants for the…
A: 2KHSO4 + 2NH3 → K2SO4 + (NH4)2SO4 Equilibrium constant Keq = [K2SO4][(NH4)2SO4] / [NH3]2[KHSO4]2 pKa…
Q: Question 5: Select the nucleophiles in * Figure 5 that are also strong bases. A B с D Figure 5 OH…
A: Nucleophiles: Species that donate their electron pair to electrophiles. A strong nucleophile is…
Q: Predicting the decay mode Based on the valley of stability, the following processes generally tend…
A: To check the mode of decay we need to determine the number or protons and neutrons . Then we would…
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Q: 3. If the reaction below is initially at equilibrium, and then each of the following changes are…
A: If an additional amount of any reactant or product is added to the system the stress is relieved as…
Q: The pH of a 0.10 M ammonia NH3 solution (K = 1.8 x 10-5) is: Your Answer: Answer
A: Ammonia reacts with water and dissociates into ammonium ion hydroxide ions.
Q: Sodium metal can be obtained by heating solid sodium carbonate with carbon Carbon monoxide is…
A: In displacement reaction more reactive element displaced less reactive element and form products.
Q: A mixture initially contains A, B, and C in the following concentrations: [A] = 0.550 M. [B] = 0.900…
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Q: Why didn't the tris stock of pH 6.8 play more of a role in the calculations? Should it of have?
A: In the question, it was asked to calculate the amount of HCl and NaOH needed to add to prepare the…
Q: Water has some unique properties due to hydrogen bonding that occurs between water molecules. Draw…
A: Water is a polar protic solvent containing two hydrogen atoms and an oxygen atom.
Q: Is the following compound an achrial or chiral molecule? Locate the chiral centers if they exist and…
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Q: Identify the VSEPR shape for each compound by dragging the shape type to the box next to the…
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Q: Calculate K for the reaction below. COF₂ (g) Express your answer using two significant figures. CO₂…
A: Given Data :
Q: Of the species below, only ________ is not an electrolyte. A) Rb2SO4 B) Ar C) KOH D) HCl E)…
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Q: At 25oC, for the reaction 2 A(aq) ----> B(aq) + C(aq), the equilibrium constant is 1.89. If the…
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Q: Predict the products of the following chemical reactions. -write the chemical formula of each…
A: #4: ZnSO4(aq) + CaCl2(aq): Since we have two different soluble salts, they will undergo double…
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Q: In a nuclear fission reaction a heavy nucleus divides to form smaller nuclei and one or more…
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Q: Draw all likely alkene products in the following reactions and circle the product you expect to…
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Q: How many peaks in the C-NMR spectrum?
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A: The formation constant (Kf) is the reaction's equilibrium constant, forming a coordination complex.…
Q: What is the pH of a solution with a hydrogen ion concentration of 6.55 X 10-6 M? Your Answer: Answer
A:
Q: How do I balance the equations: C3H5(NO3)3 ----> CO2+ H2O+ N2+ O2 HCN+ O2 ---> N2+ CO2+ H2O
A: We have to balanced the given equation which are (1) C3H5(NO3) => CO2 + H2O + N2 + O2 (2) HCN +…
Q: Which of the following solutions have the highest boiling point? 0.40 mol AlCl3 in 1.5 kg water…
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Q: PhCH₂Cl + LDA B 3 2 1 1 -A B 2 trans- PhHC=CHCH3 -A [Choose] [Choose ] [Choose ] [Choose C D 3 A B O…
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Q: A sample of gas (1.9 mol) is in a flask at 21oC and 697mm Hg. The flask is opened and more gas…
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Q: In a titration of a mixture of H3PO4 and HCl, 10.00 mL of 0.1M NaOH solution was used to reach the…
A: Answer: Since, the mixture contains HCl and H3PO4 in which HCl is a strong acid and H3PO4 is a weak…
Q: Consider the reaction 4NO2(g)+ O2(g)→ 2N2O5(g) At a particular time during the reaction, nitrogen…
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Q: A 20.5 mL sample of 0.318 M methylamine, CH₂NH₂, is titrated with 0.237 M nitric acid. At the…
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Q: For the following reaction step, indicate which pattern of arrow pushing it represents. OH H proton…
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Q: 3. What are the product/s formed from the nucleophilic substitution of…
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Q: 8. What is the acid form of... a. NH3 conjugate acid = NH4+ b. HCO3 conjugate acid H₂CO3 c. H₂O…
A: 1. When a substance accept a proton it act as base . And its residual part act as conjugate acid 2.…
Q: Calculate K for the reaction below. COF₂ (g) = CO2 (9) + CF4(9) Express your answer using two…
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Q: Draw the major product of the substitution reaction shown below. Ignore any inorganic byproducts.
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Q: How many grams of iron(II) carbonate, FeCO3 (formula weight = 115.8 g/mol), are precipitated when…
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Q: Draw the following molecule in its two most stable forms and explain why each form is or isn't…
A: The chair conformation which places the substituents in the equitorial position will be the most…
Q: Draw the starting structure that would lead to this major product (and its enantiomer) under these…
A: -> When alkene reacts with OsO4 there is formation of 1,2-diol it is called vicinal syn…
Q: QUESTION 1 The Ksp for Co(OH)2 at 25 °C is 2.5 x 10-16, What is the molar solubility of Co(OH)2 in…
A: Note: As per the guidelines solution of first question has been made. For the expert solutions of…
Q: For sulfate experiment, unknown was dissolved in 200mL of water. A careless student added only 100…
A: If the concentration of solute is greater than the maximum possible concentration, a precipitate…
Q: 6. What volume, in mL, of 0.100 M NaOH is needed to neutralize 25.0 mL of 0.1500 M H₂CO3? NaOH(aq) +…
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Q: 5. Show the major product(s) of the following reactions. H MeO. Bof MeO H CN 150° C CN COME SI- +…
A: The given reactions are Diels-alder reaction.
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- This is the most common industrial process for preparing large-scale production of nanoparticles wherein a liquid or gas is fed into a furnace and the nanoparticles are recovered by air classification. a. sol-gel method b. sputtering c. pyrolysis d. laser ablationGas Chromatography (GC) is one of the useful techniques in analytical chemistry. Give two important components in GC.Why asbestos is used in chromatography ?
- Discuss three practical applications of solvent extraction in analytical chemistry.Absorbance Beer-Lambert's Law (Spectrophotometry) #2 To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and some inert materials, solutions with known [Co"] are prepared and the absorbance of each of the solutions is measured at the wavelength of optimum absorbance. The data are used to create a calibration plot, shown below. 0.80 0.70- 8 0.60- 0.50- 0.40- 0.30 0.20- 0.10- ++- 0.015 Concentration (M) A 0.6 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted with 2+ water to a final volume of 50.00 mL. Assume that all the cobalt in the ore sample is converted to Co'(aq). a. What is the (Co] in the solution if the absorbance of a sample of the solution is 0.74? b. Calculate the number of moles of CoT(ag) in the 50.00 mL solution. 2+ C. Calculate the mass percent of Co in the 0.630 g sample of the ore.Indicate which of the two filtration techniques, gravity or vacuum, is the suitable for each of the following operations. a. Hot filtration B. Removal of decolorising carbon C. Isolation of recrystallized solute from solution 2. What is the process of seedling as it applies to recrystallisation? What purpose does it serve?
- Are these systems moderated, explain. A. An aqueous solution of plutonium nitrate B. A tray of uranium trioxide (UO3) powder, containing 1% moisture.4.Discussed the Purposed of the Golden rules in the practice of Forensic Chrmistry....before addition of solvent - ▪ What are two methods of extraction A)liquid-liquid, Solid Phase Extraction B)solid-solid, Gas phase ▪ C)evaporation, derivatization
- What does a refractometer reading of 2 mean when distilling ethanol?Describe chromatography analysis, the two essential phases used in paper chromatography and provide an example.Write TRUE if the BOLD word/phrase makes the statement correct. Otherwise, write the correct WORD/PHRASE that will make the statement true. If there are two bold words/phrases in a number, write your answer for EACH of the bold words/phrases. 1. The addition of excess charcoal would decrease the % recovery in the purification by recrystallization. 2. If the target compound is contaminated with impurity, the melting point will be higher than the theoretical value and the melting range is large.
