3. Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere is approximated by 2n(t – tnoon) F = F 6 a.m. < t< 6 p.m. .cos max Δt where Fmax= 300 W m2 is the maximum flux at tnoon = 12 p.m., and At = 24 hours. At what time of day will the town finally be ventilated?
Q: HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kb for A−? Group of ans...
A: An acid is a proton/H+ donor. A base is a proton/H+ acceptor
Q: What mass of Cu(NO 3) 2 can be prepared from the reaction of 5.00 grams of copper with 5.00 grams of...
A:
Q: Is the major organic product of the following reaction. OHC. OHC. OHC. Br PdCl PPhy. EtN OHC. OHC. B...
A: ->alkene give coupling reaction with vinyl or benzyl bromide.
Q: The rate constant for a particular zero-order reaction is 0.075 M s1 If the initial concentration of...
A: Detail mathematical calculation to find out the value of time for given zero order reaction is shown...
Q: (C) Diels-Alder, [4+2] cycloadditions of diene and dienophile and [2+2] cycloaddition COME HO. heat ...
A: Cycloaddition reaction is a pericyclic reaction in which two pi bonds are broken while two sigma bon...
Q: %23 H H CHs H-C-ć-H CH3 H-C-c-H HC=O НС—о н ОН Но H ČH,OH ČH,OH 2 CI CI CI H C = C C = C 6. нн H CI ...
A: Answer: When two molecules have same molecular formula but different structural formula or spatial o...
Q: For Problem no. 19-20 A flask is charged with 0.124 mol of A and allowed to react to form B accordin...
A:
Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid H...
A:
Q: OMg +o -> MgO Mg = Mg = %3D %3D 0 = %3D %3D
A: Complete the reaction by using coefficient---
Q: 4. Does growth of corals: Ca²+ + CO3²- → CaCO3(s) cause atmospheric CO2 to increase or decrease? Exp...
A: Growth of corals will decrease the atmosphere CO2
Q: What is the molarity of a solution in which 71.37 grams of sodium nitrate, NaNO3 are dissolved in 39...
A: Molarity of solution is defined as numbers of moles of solute dissolved per litre of solution.
Q: Calculate the standard enthalpy of formation of phenol, C 6H50H, at 298.15 K given that, at this tem...
A: Change of enthalpy of reaction is difference between total enthalpy of products and total enthalpy o...
Q: molar mass
A:
Q: 2. A solution may contain any of the three group I cations. A white precipitate is formed the additi...
A: Answer: Group-I contain three cations: Ag+,Hg22+,Pb2+ Groups reagent: HCl(aq)
Q: calculating the concentration of acid in each buffer solution show in the second picture
A: Total volume of solution = 10 mL (for all samples) Concentration of acid in each buffer can be calcu...
Q: Fumaric acid is an organic compound composed of 41.39% C, 3.47% H, and the rest oxygen. If 0.204 mol...
A: % of C = 41.39 % of H = 3.47 % of O = 100- 41.39 - 3.47 = 55.14
Q: What is the entropy change of the reaction below at 298 K and 1 atm pressure? 4AI(s) + 30 2(g) 2Al 2...
A:
Q: What is the empirical formula for a compound containing 59.72% Tin 16.10% sulfur and the remainder o...
A:
Q: 26. The change in energy for which of the following processes corresponds to the first ionization en...
A:
Q: Solve all parts otherwise I will downvote
A: The extent of the quantity of a substance that moves in a specific volume of a solvent is expressed ...
Q: Use your molecular modeling kit to determine the absolute configurations of the following compounds....
A: Given : structure of molecules
Q: 3. Describe the crystal structure of iron, which crystallizes with two equivalent metal atoms in a c...
A:
Q: Spectrophotometric of a Cobalt Chloride Solution Analysis 1. explain in detail the results o...
A: The wavelength at which maximum absorbance of a compound is obtained is known as lambda max. And as ...
Q: Please give a clear handwritten answer of this structure classified in aromatic and Non-aromatic...?...
A: Given; structure of molecules
Q: .. Suppose you wanted to further purify the acidic or basic component of your mixture. What might be...
A:
Q: Label the direction of electron flow for a galvanic cell based on the reaction below. What type of i...
A: Galvanic cell also known as voltaic cell is defined as a electrochemical cell in which electric curr...
Q: Check Your Understanding on Crystal Structure 1. Differentiate crystal structure, crystal system, an...
A:
Q: The equilibrium constant for the gas phase reaction N2 (g) - 3H2 (e)2NH3 (2) is Keq =434 x 10-3 at 3...
A: For any chemical reaction, the effect of temperature on the direction of equilibrium will depend whe...
Q: 2 M of methanol (CH3OH) was added to NaCl to make a solution ,the mole action of methanol was 0.6 an...
A: Given, Molarity of methanol= 2M Mol fraction of methanol= 0.6 Total moles of prepared solution= 9 mo...
Q: 10% (w/w) aqueous potassium iodide has a density of 1.202 g/ml. Which of the following statements is...
A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.
Q: An unknown metal forms a BCC structure with its side length of 2.884 Å. What is the atomic weight of...
A:
Q: 6. Here we have the molecular orbital energy diagram for this chlorophyll molecule. Match the absorp...
A: Here given a molecular orbital diagram for the chlorophyll molecule. And also the absorbance diagram...
Q: Consider the structure of pent-2-ene, if it undergoes ozonolysis, which of the following final produ...
A: Given, Pent-2-ene undergoes ozonalysis formed final products are:
Q: [References) Predict the sign of AS and then calculate AS° for each of the following reactions. (Thi...
A: We'll have to remember some rules to predict the sign of entropy 1. Gases has higher entropy means i...
Q: AH° for
A:
Q: . A mixture consisting of 0.130 mol N2, 0.215 mol O2, 0.100 mol CH4, and an unknown amount of CO2 oc...
A: Given :- Pressure = 1.09 atm Volume = 18.90 L Temperature = 25°C No.of.moles of N2 = 0.130 mol ...
Q: A 43.9 mL solution of 0.827 mol L-1 HCl is titrated using 0.165 mol L-1 NaOH. What volume of NaOH (...
A: Given: Molarity of NaOH=0.165 M The volume of NaOH=V mL Millimoles of NaOH=Molarity x volume (mL)=0....
Q: Consider the structure of cyclohexyne, if it undergoes acetylide reaction with NaNH2 and 2 moles of ...
A:
Q: The proper assignment of oxidation numbers to the elements in the polyatomic ion SO32- would be what...
A: In sulfite ion SO32-, the oxidation state of the oxygen atom is -2. Oxidation number of element in p...
Q: The reaction represented by the equation CO2(g) ---> C(s) + O2(g) is always ________
A: Recall the given reaction, CO2 (g) C (s) + O2 (g) We have to ident...
Q: What reagent would you use to distinguish between a ketone and methylketone and indicate what you wo...
A: The structure of ketone: Where , R and R' can be same or different alkyl groups(other than methyl) T...
Q: Describe the relationship between each of the pairs of isomers shown by recording Constitutional, Co...
A: The enantiomers are non super imposable mirror images of each other. The Diastereomers are not mirr...
Q: Activity 1 1. A sample of compound A (a clear, colorless gas) is analyzed and found to contain 4.27 ...
A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance.
Q: The following compound has shown some activity in treating Alzheimer's disease. What is an IUPAC nam...
A: ->In naming phenol give numbering taking OH at position -1.
Q: Use your molecular modeling kit to determine the absolute configurations of the following compounds....
A: CIP Rules : Identify the chiral centers Give the priorities to the groups according to their atomic...
Q: Consider 3-methylpent-2-ene, if it undergoes hydroboration, which of the following final product is ...
A: Given - compound 3-methylpent-2-ene
Q: please explain what 4 things will we be testing on the carboxylic acid required in lab procedure r...
A: Here we have to explain things testing on carboxylic acid in lab Which are following.
Q: solution is prepared that contains 12.5 mL propylamine (CH3CH2CH2NH2, d = 0.719 g/mL, 59.11 g/mol, K...
A:
Q: A 16 mL solution of 0.100 mol L-1 CH3COOH is titrated using 0.150 mol L-1 NaOH. What is the pH of t...
A: Here titrating a weak acid CH3COOH with a strong base , NaOH. You will produce a buffer solution bec...
Q: Answer no. 5 only
A: The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318 nm...
Please input complete solution
Step by step
Solved in 2 steps with 2 images
- Some solar-heated homes use large beds of rocks to store heat. (a) How much heat is absorbed by 100.0 kg of rocks if their temperature increases by 12C? (Assume that c=0.82J/gC.) (b) Assume that the rock pile has total surface area 2 m2. At maximum intensity near the earth's surface, solar power is about 170 watts/m2. (1watt=1J/s.) How many minutes will it take for solar power to produce the 12C increase in part (a)?Given the data in the table below, AHrxn for the reaction Ca(OH); + 2H;AsO4 → Ca(H;AsO4)2 + 2H;O is _ kJ. [A] -4219 (B] -130.4 [C] -4519 [D] -76.4 AH, (kJ/mol) -986.6|| Substance Ca(ОН), HASO, Ca(H;AsOa)2 -900.4 -2346.0 H;0 -285.9 O A В C DD²1 Quizzes - Spring 2023 SPE XQ Ch 12-14, 18 Public speakin x с app.101edu.co < + 1 Ch 12-14, 18 Public speakin x + Balance the following chemical equation (if necessary): V₂O(s) + HCl(aq) → VOCI (s) + H₂O(1) 2 04- Reset 0 ♡ 2 3 VOCI ( ) 4 D2L Quiz 10-12 - Spring 2023 C X Time's Up! H₂O □ 5 n 0₂ ☐3 04 05 06 л O) 6 + 2+ 7 07 V.O. 2 5 ल = (s) (1) y google - Yahoo Search Rest X ³+ 4+ 8 9 ☐8 • x H₂O 0 (g) (aq) HCI 口。 Delete Aktiv Chemistry G + Update: Submit
- Normal text Times New. - 12 BIUA + E- 1E = E - E - EEX ... .. 2 3 1 4 I I. c. Water from the sodium hydroxide solution 15 I . 16 ... I7 .. 6. Students collected the following temperature data for a coffee cup calorimetry experiment: Table 1. Temperature of solution with time for the reaction of baking soda with vinegar as measured in a coffee cup calorimeter. Time since start of reaction Temperatu re (°C) nent will (min) 24.6 0.5 20.9 1.1 20.1 1.4 19.3 1.7 18.5 2.1 18.4 2.5 18.3 2.9 18.2 3.5 18.4 a. Calculate AT and show your work. b. Is the reaction endothermic or exothermic? MacBook Air DII F6 80 F4 F3 &. $ 23 5 4 2 3 Y W K H G F S M V CO25 1. T The specific heat of water is 4.18 J-g-¹ K-¹. How much heat is required to raise the temperature of 500 g of water from 20 °C to the boiling point (100 °C)? What is the molar heat capacity of water? Specific heat of 11₂0= 4₁185.5-1-14-1 motor mass of waver: 18,001g/mol mas of water = 5003 a. 5 D HRAMCAT Hear = 500g (thit 3). 2014 Initial Temp: 20%= 2931 molar hear capacity & spresse head capacting of w Anal Temp: 100% = 3731 Hear =? Molar heat coperty? Hent = 1672003 Hear = 167.23 = 4.182 * 75,23/10.19 2. In studying the energy generated by a person, you may view the person roughly as a constant pressure calorimeter using sugar (i.e., sucrose, C12H22O11) to generate power. The reaction of table sugar in a calorimeter is given by C. Q b. Calculate the enthalpy of combustion per mole of sugar utilization. Does the result of your calculation make sense? C12H22O11(s)+120₂(g) →12CO₂(g)+11H₂O+heat. →give the magnitudo (no sign is recessure) What is the heat released by consuming one…36 of 42 * Enthalpy Constants Periodic Table Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical reactions involve changes in enthalpy, AH, which can be measured and calculated: ngs Part A AHan =Eproducts mAH; Eresctants nAH Determine the enthalpy for this reaction: where the subscript "rxn" is for "enthalpy of reaction" and "f" is for "enthalpy of formation" and m and n represent the appropriate stoichiometric coefficients for each substance. Al(OH)3 (s) + 3HC1(g)→AIC13 (s) + 3H20(1) Express your answer in kilojoules per mole to one decimal place. > View Available Hint(s) The following table lists some enthalpy of formation values for selected substances Substance AH (kJ/mol) HCl(g) -92.0 kJ/mol Al(OH)3 (s) -1277.0 AH = H20(1) -285.8 AlCk (s) -705.6 Submit Previous Answers H20(g) -241.8 X Incorrect; Try Again; 26 attempts remaining Part B P Pearson 1 3.56 acer
- It is estimated that the net amount of carbon dioxide fixed byphotosynthesis on the landmass of Earth is 5.5 * 1016 g>yrof CO2. Assume that all this carbon is converted into glucose.(a) Calculate the energy stored by photosynthesis onland per year, in kJ. (b) Calculate the average rate of conversionof solar energy into plant energy in megawatts, MW11W = 1 J>s2. A large nuclear power plant produces about103 MW. The energy of how many such nuclear power plantsis equivalent to the solar energy conversion?Integrative ExercisesUse the values of AH to calulate AH for the follonng reactions. Substance and State AH (LJ/mol) Cag(PO,),(s) C&SO (s) CH,(G) HCN(9) HC(G) H,0(g) NH(9) NH,CI(s) 0,(0) HPO,(1) H,80,(1) 4126 -433 -75 135.1 -92 -242 -46 -314 -1267 -814 (2) + N OH 0O AH" b. Caa (PO), (s) + 31, SO.(1) + 3Ca$O.(s) + 2H,PO, (1) c NH3 (g) + HCIG) NH, CI(s) AH"= kJ 888V C Item 14 # Part A 3 Calculate the enthalpy change for the reaction P.Os() +202 (9) P.Om()) given the following enthalpies of reaction P()+30: (9) P.O.(a) AH--1640.1kJ Pa(e)+50₂ (9)→ P400(a) AH-2940.1kJ IVE ΑΣΦΑ AH- Submit Provide Feedback E D Previous Anas Beaut Incorrect; Try Again; 5 attempts remaining $ 4 > R F % 5 T 6 G KJ C Y & 7 H . 00 8
- (d) By using the data provided below, calculate the PillingBedworth ratio for the nickel (Ni) – nickel oxide (NiO) system and determine whether NiO is protective against corrosion. Atomic mass of nickel = 58.7 g.mol-1 Density of nickel = 8.91 Mg.m-3 Molecular mass of nickel oxide = 74.7 g.mol-1 Density of nickel oxide = 6.67 Mg.m-3 (e) A stainless steel pressure vessel that has fracture toughness, K1C, of 197 MN.m-3/2 is going to be exposed to a stress of 398 MN.m-2 . By using this information explain how designers can determine the thickness of the vessel so that catastrophic failure can be avoided.tloree loleutical f dilti-guishable bteracting particles & tseee available nou- Afle parctele energy levela laitg eurgies o, e 4 2E. the Bystim is En contact with a heat baoh of temp T. A tlal energy f dE is shared by these thoree pasetic les. the woi of cways the partlely can be distaibuted lf-. CGnfider a nou-maWhat mass of nickel (in gm) could be formed in a solution of nickel (II) chloride by passing 0.25 amperes for 10 hours. (At.wt. Ni= 58.7, Cl= 35.5 ) ? NICI + 2e Ni + 2CI