Chemistry Write structural formulas for reactions! Bromocresol green+NaHCO3= 1) Br Br H,C CH HQ + Na. HCO,> Br SO, H neutral red+NaOH= CH3 + NaOH > NH2 CH)N safranin T+HCI= 3) H,C CH3 +Hl>
Q: Et, NH no reaction However, when the carbon-carbon double bond has a carbonyl group adjacent to it, ...
A:
Q: When CO(g) reacts with 02(g) according to the following reaction, 283 kJ of energy are evolved for e...
A: We need to write value of ∆H , for this we need to check sign and total energy.
Q: 0.250 M
A:
Q: A 6.785- g sample contain only one volatile substance, MgCO3, was heated in a nitrogen atmosphere fo...
A:
Q: Draw Step 2 of the mechanism. I Edit Drawing
A: The given reaction is a type of Nucleophilic addition followed by substitution.
Q: 160.0 −L helium tank contains pure helium at a pressure of 1870 psi and a temperature of 298 K. How...
A: 1 atm = 14.7 psi Given - - > P1 = 1atm = 14.7 psi P2 = 1870 psi T = 298 K V2 = 160 L
Q: Write the equation for the preparition of soap from stearic acid and NaOH. Explain the reaction.
A: Preparation of soap from stearic acid and NaOH is a process called saponification.
Q: The greater the molar heat of vaporization of a liquid, the greater its vapor pressure. Is this true...
A: Molar heat of vapourisation is the amount of heat required to convert 1 mole of liquid into gas.
Q: iven that the density of air at 740 Torr and 27C is 1.146 g/L, calculate the mole fraction and al pr...
A:
Q: The % w/w of F- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL of 0...
A: Ans. There are two precipitates in this analysis: AgNO3 and I– form a precipitate of AgI, and AgNO...
Q: 1) NuOE 2) CH,CH,Br DET 3) KOH э) кон 4) HCL heat
A: Given incomplete reaction is : Complete this reaction and predict the major product = ?
Q: Draw curved arrows to show the mechanism for the step of the B-ketoacyl-ACP synthase reaction shown ...
A: In given reaction release of CO2 takes place.
Q: The average concentration of sodium ion and sulfate ion in sea water are 1.15ppm and 250ppm respecti...
A:
Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many...
A:
Q: at rate
A:
Q: The average concentration of sodium ion and sulfate ion in sea water are 1.15ppm and 250ppm respecti...
A:
Q: Determine the frequency of light ( X 1015 Hz) emitted when an electron in the hydrogen atom transiti...
A: Given- ni = 2 nf= 1
Q: 2. A 1000 cc flask is filled with 4.00 grams of hydrogen gas and 8.27 ounces of bromine gas at 448°C...
A: A 1000 cc flask is filled with 4.00 g of hydrogen gas and 8.27 ounces of bromine gas at 448◦ C. The ...
Q: assign oxidation numbers to each of the atoms in the equation and determine if the reaction is redox
A:
Q: The balanced combustion reaction for C,H, is 2C,H,0) + 150,(g) 12 CO, (g) + 6 H,O(1) + 6542 kJ If 5....
A:
Q: The standard reaction free energy AG = -190. kJ for this reaction: CH;OH(g) + CO(g)→HCH;CO2(1) Use t...
A:
Q: 1.45 grams sample of acetic acid, HC2H3O was burned in excess oxygen in a bomb calorimeter. The calo...
A: moles of acetic acid = 1.45 g / 60.05 g mol-1 =0.02414 mol heat released is equal = q1 heat absorbed...
Q: A chemist measures the energy change AH during the following reaction: 2 H,O(1) → 2 H,(9)+0,(9) AH=5...
A: The reaction given is :- 2H2O(l) ---> 2H2(g) + O2(g) ∆H = 572 KJ
Q: 2- The values for A°m A2B , X3Y2 and A3Y are 2.4 , 1.5 and 1.8 respectively. Calculate the A°m for X...
A:
Q: Consider an analyte solution of 50.0 mL of 0.050 M hydrochloric acid, HCl, titrated against 0.10 M s...
A: Given, Analyte solution of 50.0 mL 0.050 M HCl ,titration with 0.10 M NaOH .
Q: A 1.46 mol sample of CO2 gas is confined in a 34.0 liter container at 10.7 °C. If the amount of gas ...
A:
Q: An analytical chemist is titrating 146.1 mL of a 0.4500M solution of ammonia (NH;) with a 0.4400M so...
A:
Q: The helium atom consists of two electrons in orbit around a nu- cleus containing two protons. The pa...
A: We need to tell the electronic-electronic repulsion part of the Hamiltonian.
Q: 11. A 101.3-mg sample of an organic compound known to contain Cl is burned in pure O2 and the combus...
A:
Q: Identify the best reagent(s) to perform the following transformation? CEN CH3 O Cro3, H2S04, H20 O 1...
A:
Q: Q17) Calculate the osmotic pressure of 25% of the urea solution at a temperature of (37°C). R=0.0821...
A:
Q: Q2 : At 25°C, K = 3.40 x 10-3 S m-1 for 0.00100 M NH4OH. Values of Lo are: NH4C1 = 0.01497, NaOH 0.0...
A:
Q: 9. The % w/w of l- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL o...
A: amount of AgNO3 =50 mL X 0.04980 M =2.49 mmol amount of KSCN = 22.76 mL X 0.05322 M =1.2112 mmol
Q: If the pressure value of a monatomic gas is 296.063atm, what is the value of the constant Rif the vo...
A: We know that Ideal gas equation as : P V = n R T Given, ...
Q: 11. A 101.3-mg sample of an organic compound known to contain Cl is burned in pure O2 and the combus...
A:
Q: What is the molarity of 304mL glucose stock solution is necessary to prepare 2500 mL of the D5W (5% ...
A: Given: Volume of glucose stock solution = 304 mL Volume of glucose diluted solution = 2500 mL Molari...
Q: A 20.00 mL aliquot of sorbic acid solution (HC6H7O2) was titrated with 0.0985 M NaOH * (aq) using bo...
A:
Q: describe the positive indications of the presence of a) CO3-2 ion b) SO4-2 c) PO4-3 d) Cl- and ...
A: Qualitative analysis is the process by which unknown chemical species is identified by observing the...
Q: The electron affinity of an element is typically defined as the energy change for the choose your an...
A: Electron affinity- the amount of energy liberated when an electron is added to a neutral atom to for...
Q: 2. A 0.8102-g sample of impure Al,(CO3)3 decomposed with HCI; the liberated CO, was collected in CaO...
A:
Q: 9. The % w/w of I- in a 0.2144-g sample was determined by Volhard titration. After adding 50.00 mL o...
A: amount of AgNO3 =50 mL X 0.04980 M =2.49 mmol amount of KSCN = 22.76 mL X 0.05322 M =1.2112 mmol
Q: Q 1. At 291 K, the equivalent conductivities at infinite dilution of HCI NaCl and CH3COONA are 369.3...
A:
Q: Describe how an ICP plasma torch (atomizer) operates, why it may be necessary to use one, and some a...
A: ICP plasma torch consists of a mixture of gases which are electrically neutral (containing cations a...
Q: Covalent bonding occurs between nonmetallic elements. True or false?
A: Covalent bond is formed by sharing of electrons.
Q: O2(9) + F2(g) = F2O2(g) Expt # [F2] Rate (M/s) 0.1 1.00 x 10-4 0.8 0.2 5.00x10-5 2 0.1 0.1 1.25x10-5...
A:
Q: 3. What is/are the pairs that cannot exist together in a mixture? Why can't those pairs exist?
A: 3. Reaction mixture is made when two or more substances are combined , but not combined chemically. ...
Q: Cellulose, the major component of plant cell walls has an empirical formula of C6H10O5. One of the ...
A: Mass of Lindsey Creek redwood (m) = 3.3 x 106 kg Mass of cellulose in this = 45% of (m) = (45/1...
Q: A buffer solution is prepared by dissolving 1.50g each of benzoic acid (MM=122.1, Ka=6.3 x 10^-5), H...
A: Given, Mass of benzoic acid (HC7H5O2) = 1.50g Molar mass of benzoic acid =122.1g/mol Mass of sodium...
Q: chemist needs a buffer solution of pH 3.90. a. Are formic acid (pKa = 3.74) and its salt sodium fo...
A:
Step by step
Solved in 2 steps with 3 images
- 33a, no need to explain too much.Answer from letters [a - e] SOURCE: GENERAL, ORGANIC AND BIOLOGICAL CHEMISTRY by Smith 4th EditionYou are tasked with creating a simplified pourboiux diagram of silicia speciation. The relevent reactions are HSO4- <-> SO42- , H2S <-> HS-, and S <-> H2S. The delta G of S is 0, HSO4- = -755.3, SO42- -744.0, H2S = -27.7, HS- = 12.2 The silica activity is 10^-3 M. Set and solve the reactions so they can be graphed on a pe/pH diagram.
- Hello, I do not understand this quiestion or how to do this problem. Can you help me so I can follow along. 7. 5.00 mL of stock solution is diluted to 25.00 mL, peoducing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL resulting in solutin BETA. 10.00 mL of solutionBETA is then diluted 25.00 mL producing solution Gamma. a. Determine the dilution factor in produciing solution Alpha from the stock solution. b. Determine the dilution factor in producing solution Beta from the solution Alpha c. Determie the dilution factor in producing solution Gamma from the stock solution Beta. d. Determine the overall serial dilution factor in producing solution Gamma form the stock solution.SOLUBILITY – reactions with conc. Sulfuric acid Based from the video link --- https://www.youtube.com/watch?v=JmlDkC6IdKA&t=21s 1 mL of conc. H2SO4 was placed in a separate test tube. The test samples, cyclohexane and cyclohexene were added separately. Observe what happened after the reaction. Question: Based from your observation, write the results of the following samples: (a) Cyclohexane, (b) Cyclohexene, and (c) Toluene. Thank you very much!EXPLAIN ME LIKE I M 5. PLEASE IN DETAIL WITH HANDWRITTEN
- how do you find mmole of tetraborate and [B4O5(OH)4^2-] for trial 1?Predict the products of the chemical reaction (select all that apply and pay attention to coefficients).Na2O(s) + H2O(l) →A. Na+B. NaC. 2 OH–D. OH–E. 2 Na+F. 2 NaG. H3O+H. H2O2Recall that the formula for ΔHrxn = [(-Ccal)(moles of limiting reactant)/(ΔT)]If the actual concentration of the sodium hydroxide used in the calibration part of the experiment was lower than the stated value, will the value of Ccal increase, decrease, or remain the same? Please explain. How about if the actual concentration of the sodium hydroxide used in the calibration part of the experiment was lower than the stated value. However, the NaOH solution used in the determination of ΔHrxn was of the correct concentration. Will the magnitue of ΔHrxn increase, decrease, or remain the same? Please explain.
- Using a KMnO4 reagent that is 83 % w/w pure, prepare 250ml of a 0.3N KMnO4 solution. 2MnO4- + 5HNO2 + H+ → Mn2+ + NO3- + 3H2O Please show all workings below.So I’m taking organic chemistry and I’m doing my first lab. It’s on crystallization of sulfanilamide in 95% ethyl alcohol and I’m supppsed to write out the equation for this reaction using the actual structures like in the photo (a sample from another experiment the professor gave us). I don’t even know where to begin with this experiment I need some help. Thanks!A chemist received different mixtures for analysis with the statement that they contained NaOH, NaHCO3, Na2CO3, or compatible mixtures of these substances, together with inert material. From the data given, identify the respective materials, and calculate the percentage of each component. 1.000g samples and 0.2500N HCl were used in all cases. (A) For Sample W: With PP, 24.32ml was used. A duplicate sample required 48.64ml with MO. (B). For Sample X: The addition of PP caused no color change. With MO, 38.47ml of the acid was required. (C). For Sample Y: To cause a color change in the cold with PP, 15.29ml of the acid was necessary, and an additional 33.19ml was required for complete neutralization. (D) For Sample Z: The sample was titrated with acid until the pink of PP disappeared; this process required 39.96ml. On adding an excess of the acid, boiling, and titrating back with alkali, it was found that the alkali was exactly equivalent to the excess acid added.