3. At 25 °C, the groundwater is saturated with CO2 at a partial pressure of 0.2 atm. The pH of the groundwater is 5.80. Please estimate the concentration of calcium (Ca) in the groundwater sample.
Q: At 25 °C, the reaction 2NH3(g) N2(g) + 3H2(g) has Kc = 2.3 x 10-9. If 0.021 mol NH3 is placed in a…
A: Please comment down for any doubt. I hope my answer helps you.
Q: 2. A similar experiment is performed to determine the empirical formula of an oxide of copper, and…
A: Given: Mass of crucible, cover and copper sample = 21.53 g Mass of empty crucible with cover = 19.66…
Q: Full solution this question
A: Step 1: When Grignard reagent reacts with CO2 - the reagent behaves like a nucleophile. It readily…
Q: please answer in text form and in proper format answer with must explanation , calculation for each…
A: EXPLAINED ABOVE IN DETAILED
Q: None
A: Step 1:Given reaction,N₂(g) + O₂(g) ⇌ 2NO(g)Volume of solution (flask ) = 500 ml = 500/1000 = 0.5…
Q: Camestry
A: Step 1:• Mechanism: • Firstly ethanol reaction with oxidising reagent to get aldehyde which is…
Q: Be sure to answer all parts. Determine Angas for each of the following reactions: (a) MgCO3(s) →…
A:
Q: 68. In the presence of NH 3, Cu+2 forms the complex ion Cu(NH3) 4+2. If the equilibrium…
A: Step 1:Introduction to question :Given ,In the presence of NH3, Cu+2 forms the complex ion…
Q: Choose the best reagents for the following reaction. B is the wrong answer.
A: Thank you.
Q: None
A: Step 1: Step 2: Step 3: Step 4:
Q: What is the major product of the following reaction? CH3 Br₂ ? + H₂O L CH3 IV. CH3 OH Br OH V. CH3…
A: Step 1:
Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…
A:
Q: During an experiment, 0.984 mol of H2 and 0.492 mol of 12 were placed into a 1.38 liter vessel where…
A: To calculate the final (equilibrium) concentrations of H2, I2, and HI, use ICE table to relate…
Q: From Halogen form a structure of a haloalkane (alkyl halides)
A: Step 1:
Q: Draw the principal form of alanine at pH 2.00. At pH 10.00 where H2A+ -> H+ + HA has a pKa of…
A: Alanine Structure and Ionizable Groups:Alanine is an amino acid with the following structure and…
Q: Considering the Rf’s of acetaminophen, aspirin, & caffeine, which compound has the most…
A: EXPALINED IN DETAILED ABOVE WITH RELEVANT VALUE OF Rf FROM DIFFERENT SOURCES
Q: Identify and provide an explanation distinguishing a qualitative and quantitative chemical analysis.…
A: Step 1:Qualitative :- Qualitative chemical analysis focuses on identifying the presence or absence…
Q: A volcano erupts and pours 5.21 × 104 kg of 880°C lava into a 7°C mountain lake of mass 4.38 × 105…
A:
Q: :$;$::):;));:$::$;
A:
Q: Answer all 3 asap
A: Step 1: When two molecules collide a. Molecules are correctly oriented when they collide. c. The…
Q: None
A: Step 1:Stability of conjugate acid is less => More basicElectronegative: C < N < O Step…
Q: None
A: Let's find out how much 45% KOH needs to be added and the final volume of the 32% KOH solution in…
Q: Assuming the use of the same stationary and mobile phases, how would the Rf of a compound change ifI…
A: Step 1: Information: TLC is a thin layer chromatography It is the analytical techniques that used…
Q: 1016 3. Using Hess' Law, Calculate the standard heat of formation of copper(I) oxide given the…
A: Step 1:Introduction to question :Given ,Reaction 1 : CuO(s) → Cu(s) + ½ O2(g) Δ.Η° = 157.3…
Q: Consider the monomers oxalyl chloride and resorcinol, shown below. Draw the structure for two repeat…
A:
Q: IUPAC nomenclature for the compound?
A:
Q: Measure initial buret volume by measuring the level of the meniscus in buret
A: Step 1:In measuring the volume of clear solution in a buret, we should look at the lower meniscus…
Q: Based on the graph, what would you calculate as the sulfate concentration when the net voltage was…
A: Based on the given information, calculating the sulfate concentration at a net voltage of 0.013 V…
Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…
A: Step 1:In an aqueous solution, an acid is a compound that produces hydronium ions H3O+ while a base…
Q: 11.-15. Match each reagent to how it reacts with Y is from the reagent. Answers may be repeated. 11.…
A: Step 1: Information : As we know that alpha beta unsaturated carbon is gives different types of…
Q: Liquid Partitioning with Separatory Funnel A student carried out the following procedures in a…
A:
Q: Calculate the enthalpy of formation of benzene from the following data.2C6H6(g) + 15O2(g) --->…
A:
Q: 2. When 4.21 grams of potassium hydroxide are added to 250. mL of water in a coffee cup calorimeter,…
A: Please see the attached image for the solution. If there are queries, please do not hesitate to…
Q: Name these organic compounds please:
A: All three structures above are alkanes. Alkanes are organic compounds that consist entirely of…
Q: Draw a mechanism for the deprotection mechanism between Probe 1c and disulfide. It is fine to…
A: **Step 2: The General Mechanism**In biochemical contexts, the "deprotection" usually refers to the…
Q: For each atom in the table below, write down the subshell from which an electron would have to be…
A:
Q: 4.5 A system obeys the fundamental thermodynamic relation U = U(S,V,n) = Kn5/3 (V — nb)−2/32S/3n R -…
A: Step 1: Given that U =U(S,V,n)U= internal energy S = entropy of the system V = volume N = no of…
Q: From the data given below calculate the value of ΔS° for the reaction. T = 298.15 K.…
A:
Q: :$:$;;$;;$;$ draw out neatly
A:
Q: Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen…
A: Step 1:Given reaction:N2O4(g) ⇌ 2N2O2…
Q: Retro aldol: H. NaOH H₂O H. HTH "j"82f NaOH
A:
Q: Identify the reagents you would use to perform the following transformation: ii-i OH The…
A: Thank you.
Q: Determine whether the following will proceed via SN1, SN2, E1 or E2 reaction. Draw the major…
A:
Q: Mr. Gill is attempting to grow some new flowers at home. He knows that flowers and plants alike…
A: Approach to solvinquestion: explanation:s:
Q: Problem 15 of 15 Submit Draw the major product of this reaction. Ignore inorganic byproducts. Assume…
A:
Q: 4. Cyclobutane decomposes to ethylene according to the equation: C4H8(g) →2C2H4(g). Determine the…
A: Time, sP, mmHg0400200031640002486000196800015510000122Step 1: Plot the Pressure vs. time. This will…
Q: During the transfer hydrogenation of dehydrozingerone to zingerone ideally the yellow color fades…
A: Certainly! Let's break down the explanation: Step 1: Transfer Hydrogenation of…
Q: A solution is prepared that is initially 0.25M in hypochlorous acid (HCIO) and 0.31M in potassium…
A: Step 1: GivenHypochlorous acid, [HClO] = 0.25 MPotassium hypochlorite, [KClO] = 0.31 MpH = ?Ka of…
Q: work 12:Acetal Chemistry work Due in a day Homework ○ 7/13 answered Draw the product of the…
A:
Q: Draw the structures of the major organic product(s) or condition(s) denoted by A to E in the…
A: Step 1:• Mechanism: • In the first reaction, hydroboration oxidation reaction occurs in which…
Step by step
Solved in 2 steps
- 7) An aqueous solution containing 25.0 mg of a hormone in 150.0 mL of solution with an osmotic pressure at 25 °C of 9.00 mmHg. What is the molecular weight of the hormone? 8) (a) What is the pH of a solution in which 45 mL of 0.10 M sodium hydroxide is added to 25mL of 0.15M hydrochloric acid? (b) A brand of carbonated beverage has a pH of 3.50. Calculate [H*]=?A 0.437 M solution of a weak base has a pH of 11.94. What is the base hydrolysis constant, Kp, for the weak base?What is the pH at 25 °C of water saturated with CO2 at apartial pressure of 1.10 atm? The Henry’s law constant forCO2 at 25 °C is 3.1 x 10-2 mol/L-atm.
- What is the pH (to two decimal places) of a saturated aqueous solution of LiF (at 25 °C)? Ksp = 3.8 × 10–3; Ka(HF) = 6.67 × 10–41. the temperature for each solution is carried out at approximately 297 K where Kw = 1.00 x 10 ^-14 (a) 0.20 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the pH of the resulting hydrochloric acid solution? (b) 0.70 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 3.0 L of solution. What is the pH of this solution ?3.134 grams of potassium sorbate (KCH3(CH,)4CO2 ) is fully dissolved in 100.00 mL of water, which is carefully transferred to a conical flask. Then 100.00 mL of 0.240 M HNO, is added dropwise to this solution from a burette. Given: K, (sorbic acid) = 1.7 x 10-5. Showing all your calculations and reasoning, determine the pH of the solution that results after the addition of all the acid mentioned above.
- Predict whether aqueous solutions of the following substances are acidic, basic, or neutral and write hydrolysis equations for the acidic and basic solutions. (a) CsBr; (b) Al(NO3)3; (c) KCN; (d) CH3NH3ClA 0.018 M solution of salicylic acid, HOC6H4CO2H, has the same pH as 0.0038 M HNO3solution. (a) Write an equation for the ionization of salicylic acid in aqueous solution. (Assume only the –CO2H portion of the molecule ionizes.) (b) What is the pH of solution containing 0.018 M salicylic acid? (c) Calculate the Ka of salicylic acid.1) Calculate the pH of a solution prepared by dissolving 1.90 g of sodium acetate, CH,COONA, in 64.0 mL of 0.15 Macetic acid, CH;COOH(ag). Assume the volume change upon dissolving the sodium acetate is negligible. K, of CHCOOH is 1.75 x 105. Calculate the amount of heat released or absorbed by the following substance: 90.23g of iron, AT= 86°C Calculate the amount of heat released or absorbed by the following substance: 7.45g of silicon, final temperature = -10°C, initial temperature = 25°C
- Propanoic acid, CH₂CH₂COOH, is a weak monoprotic acid that is used to inhibit mould formation in bread. A student prepared a 0.10 mol/L solution of propanoic acid and found that the pH was 2.96. What is the acid dissociation constant for propanoic acid? [Hint: Setup an I.C.E. table] CH3CH₂COOH (aq) Ka for propanoic acid is: ←CH3CH₂COO (aq) + H (aq)Help me please4. Ethylamine, C2H5NH2, is a monoprotic base with pKb = 3.37 at 25 °C. For 0.173 mol L−1 C2H5NH2(aq) at 25 °C, calculate (a) the percent ionization of C2H5NH2; and (b) the pH of the solution.