Q: A piece of metal weighing 59.6 g with a specific heat of 0.59 Jg1°C- at 1197.5 °C is dunked into a…
A:
Q: If you have 4.7 moles of KBr in a 0.520 M solution of KBr, what is the volume o f your solution?
A:
Q: Write at least one real-life application of Boyle's Law. Explain how Boyle's Law works in your given…
A: Explain real life application of Boyle's law ---
Q: Consider the following data for osmium: 190.23 mol atomic mass electronegativity 2.20 kJ 106.1 mol…
A: Electron affinity is the energy released when an electron is added to outermost shell of isolated…
Q: An electrochemical cell is constructed in which the silver ions in silver chloride are reduced to…
A: Given, A current of 0.500 A is passed through the cell for 101 minutes. The mass of copper metal…
Q: ball & stick v labels cis isomer trans isomer cis-trans isomerism not possible
A: Idea about Cis-trans isomer.
Q: What do you call the stage of the titration in which the number of moles of the titrant is…
A: Titration is a technique to determine the unknown concentration of a substance by adding the volume…
Q: Identify the intermolecular forces present in the following substances. 5) Phosphorus trichloride,…
A: Intermolecular forces :- The attractive forces present among molecules of a substance are called…
Q: Mn(OH)2 has Ksp = 4.5 x 10-14. What is the molar solubility of Mn(OH)2 in a solution containing…
A: Given, Ksp = 4.5 x 10-14 concentration of Mn2+ from Mn(NO3)2 is = 0.10 M Solubility equilibrium of…
Q: Find the AHn for the following reaction: 20F,(g) + 2 S(s) → SO2(9) + SF,(9) given the following…
A:
Q: How much CO2 can be derived from 500 g lactose?
A: Chemical formula of lactose = C12H22O11 Molar mass of lactose = 342.3 g/mol
Q: 5. Show the full structure of the salt that forms when triethylamine reacts with hydrochloric acid:
A:
Q: Consider the following half-reactions: Half-reaction E° (V) Br2(1) + 2e¯ – 2B1¯(aq) 1.080V Sn2+(aq)…
A: The electrochemical properties are given below
Q: A sample containing 2.75 moles of N2 and 6.25 mol of Hz are placed in a reaction vessel and brought…
A:
Q: A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company,…
A: Given: The acid concentration (Assuming it HA) = 0.092 M And the pH of the solution = 2.70
Q: Give the clear handwritten answer..
A:
Q: 1. Calculate the volume of 0.050OM EDTA needed to thrate 26.37 m of 0.074IM MaNO Molar Mass MglNO-…
A: Answer: By using Eriochrome Black T indicator Mg2+ ion can be easily estimated by titrating them…
Q: Show the two (neutral) organic starting materials that would be used to synthesize the compound…
A:
Q: ubidium-87 decays by B production to strontium-87 with a half life of 4.7 x 1010 years. What is the…
A:
Q: Estimate the freezing point of concentrated aqueous HCl, which is usually sold as a 12 M solution.…
A: Given: Concentration of the solution = 12 M. And the freezing point decreases by 1.9 °C for every…
Q: Answer the questions below in relation to the following generic phase diagram. 1.0 A 0.5 45° 60°…
A: Answer: For a substance, phase diagram give us interpretation of existence of various phases of a…
Q: What is the relationship between: (S)-alanine and (R)-alanine? (2S,3S)-2-amino-3-methylpentanoic…
A: Enantiomers are stereo isomers that are non superimposable mirror images to each other.…
Q: CH2) + O3(g) → CO2«@) + 2H2O(g) ДН (КУmol) -249.2 Substance Substance AHf (kJ/mol) H2O1) Ocg) Oxg)…
A: Here we have to determine ∆H°rxn of the given reaction from standard enthalpy of formations data.…
Q: In a redox reaction, the species reduced Select one: a. gains electrons and is the oxidizing agent…
A:
Q: Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the…
A:
Q: 82 joes ß decay. Wh
A:
Q: "Supply the missing reactant:
A:
Q: A 2.00 L solution contains 0.411 M NH3 and 0.660 M NHA. (The Kb of NH3 is 1.86 10-). What is the pH…
A: Given: Concentration of NH3 = 0.411 M Concentration of NH4A = 0.660 M And volume of solution = 2.00…
Q: For Cd(OH)2, Ksp = 5.9 x 10-15, For [Cd(CN)4]²- Kr = 3 × 1018. What is the molar solubility of…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: The orbital diagram and number of unpaired electrons of the ff.atoms:Cs,Ge,Sb,Ho,and Bk
A:
Q: Comment on whether each of the 4 compounds shown below is a feasible Grignard reagent. MgBr MgBr HO…
A: Grignard reagent is used as nucleophile or can also act as base. Let us study its reaction.
Q: Concentration of hydrochloric acid (M) 2.11 Concentration of sodium hydroxide (M) 2.05 Calorimeter…
A:
Q: 11.) Calculate the mass of the solid product formed when 1.5 L of o.50M NaOH is combined with 2.0L…
A:
Q: Find the AH,n for the following reaction: 2N2(9) + 502(9) → 2N2O5 (9) given the following reactions…
A: The change in enthalpy of a reaction that can be made from the other three reactions can be…
Q: 12. Which of these methods are utilized to help prevent the rusting of iron? I. Painting iron II.…
A: Rusting is slowly eating down of metallic surface of iron by aerial oxygen and moisture. It is…
Q: Write the full electron configuration for P. St. full electron configuration: 12°2p°3s?sp TH or What…
A: Given-> P3- ->Negative charge means three electrons are added in phosphorus.
Q: -2- 9. Which of these is correctly associated with the cathode? I. positive electrode II. electrode…
A: We have to find correct options about cathod form the following- I. Positive electrode II. electrod…
Q: In carboxylic acids, electrons__________ groups enhance acidity. A. Transferring B. Donating…
A:
Q: Which of the following is the balanced half -reaction for the oxidation of Cu to Cu+2? Select one:…
A: Oxidation :- The process of loss of electrons or increase in oxidation number is known as oxidation…
Q: Element Atomic Number: 1 Name: Hydrogen Symbol: Atomic Number: O 'H O 2H Isotope Atomic Mass:…
A: Deuterium, H12 has 1 proton and 1 neutron.
Q: Predict the product a. H30* M9CI b. H30* LIAIH4
A:
Q: 1. Find the pH of 0.0500M CH¿CICOOH (a weak acid) where Ka=1.4 x 103
A: The PH of chloroacetic acid(CH2ClCOOH) can be calculated as follows
Q: After performing precipitation gravimetry, Asta placed the weighing form inside the crucible, heated…
A:
Q: explain why it would not be possible to determine the orders with respect to both iodide and…
A: To explain: why it would not be possible to determine the orders with respect to both iodide and…
Q: What is oxidized and what is reduced in the following reaction (show your work): N2 + 2O2 → 2NO2
A: The answer is given below
Q: In formaldehyde, CH2O, where carbon is the central atom, the formal charge on the oxygen is zero and…
A: The given statement is true .
Q: Define conformational isomers. Draw or attach a photo then arrange the following conformers of…
A:
Q: What is the standard enthalpy (in KJ) of formation for this reaction: CH (g) + O2(g) → CO2(g) +…
A: Given, CH4(g) + O2(g) ---------> CO2(g) + H2O(l) ∆H°CO2(g) = - 393.5 kJ/mol ∆H°H2O(l) = -…
Q: 16.) What is the pressure exerted by 34.06 g of ammonia at 25°C and 250 mL if it behaves as a van…
A:
Q: What volume of water must be added to a 26.33 mL solution of a pH = 1.17 solution of HClO4 to raise…
A: Initial Volume = 26.33 Initial pH = 1.17 Final pH = 3.53
Step by step
Solved in 2 steps with 2 images
- Calculate the pH of 25 mL of 0.175 M CH3COOH with 30 mL of water added after the addition of 43.75 mL of 0.1 M NaOH (equivalence). Show work, please. This pertains to the weak acid strong base exercise.Calculate the initial pH of 25 mL of 0.175 M CH3COOH with 35 mL of water added. Please show work. This pertains to weak acid /strong base exercise.What is the pH of 0.175 M methylammonium bromide, CH3NH3Br? (Kb of CH3NH2 = 4.4 × 10−4.) ( please type answer note write by hend )
- Data: NaOH added mL pH 2 3.90 4 4.20 6 4.4 8 4.6 10 4.70 12 4.86 14 5.02 16 5.1 18 5.3 20 5.5 22 5.89 24 6.6 24.5 9.9 25 10.88 25.5 11.4 26 11.7 27 11.98 28 12.03 29 12.05 1. determine the pH and volume of NaOH added at the equivalence point. 2. Calculate the Ka for acetic acid. 3. Determine the percent error for the Ka valueCalculate the pH of a solution containing 0.0279 M potassium hydrogen fumarate and 0.018 M dipotassium fumarate. The ?a values for fumaric acid are 9.50×10−4 ( ?a1 ) and 3.30×10−5 ( ?a2 ). ( Please type answer note write by hend )Help Please thank you!!! Imagine that you are in chemistry lab and need to make 1.00 LL of a solution with a pH of 2.70. You have in front of you 100 mLmL of 7.00×10−2 MM HClHCl, 100 mLmL of 5.00×10−2 MM NaOHNaOH, and plenty of distilled water. You start to add HClHCl to a beaker of water when someone asks you a question. When you return to your dilution, you accidentally grab the wrong cylinder and add some NaOHNaOH. Once you realize your error, you assess the situation. You have 80.0 mLmL of HClHCl and 90.0 mLmL of NaOHNaOH left in their original containers. Assuming the final solution will be diluted to 1.00 LL , how much more HClHCl should you add to achieve the desired pH? three sig figs pls
- Exercise 16.2 Calculate [H+] in a solution in which [OH]=2.0102M. Is this solution acidic, neutral, or basic?The weak acid HXO2 has a dissociation constant of Ka = 7.50 × 10^-10. A lab worker prepares of 1.600 M solution of this weak acid. What is the pH of this solution? Report the answer to 3 significant figures. No scientific notation please.Hello, I have a problem regarding buffer question. Mainly question c, I got 4.83 but I was told that I was wrong? (it's either my answer is wrong or the system is wrong, I doubt that(?)) I just want to know how do I do this question :( For a, I got 4.74 and for b I got 4.65
- MULTIPLE CHOICE: Choose the best answer. Encircle your answer then write the letter before the number. A. These substances react with bases to form Acids Bases Salts Alkalinesubstances B. This is the process wherein charged particlesthat are already existing in the compound tend to Dissociation Ionization Dissolution Diffusion C. Thisvalue represents the quantitative measure of the strength of an acid in pH ka [H+] Allof the above D. Sulfuricacid is a/an: Monoproticacid Polyproticacid Weakacid Acidicsalt E. Thefollowing theories describe acids and bases, EXCEPT: Arrhenius Lewis Michaelis-Menten Bronsted-LowryTheory F. Thistheory states that acids are electron pair acceptors: Arrhenius Lewis Michaelis-Menten Bronsted-LowryTheory G. Thistheory states that bases are capable of furnishing hydroxide ions in aqueous Arrhenius Lewis Michaelis-Menten Bronsted-LowryTheory H. Thistheory describes acids as proton Arrhenius Lewis…True or false (7). The greater the Ka value, the more dissociation the weak acid.___________ (8). In Quant Analysis, “ICE table approach” is only for a quantitative calculation based on approximation.____ (9). The biggest buffer capacity lies in pH = pKa ( Ka is the dissociation constant of the conjugated acid ), even the buffer shows alkaline pH. __________ (10). Organic bases are usually weak bases. ________________The weak acid HXO2 has a dissociation constant of Ka = 4.50 × 10-10. A lab worker prepares of 1.500 M solution of this weak acid. What is the pH of this solution? Provide answer to 3 significant figures and no scientific notation please.