The material with lowest density is: O a Metals Alloys Oc Polymers Od Ceramics O e Composite materials

Q: Which of the following CAN exist as cis-trans isomers? I. CH3CH2CH=CHCH3 II. ClCH=CHCl III.…

A:

Q: 23 The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A:

Q: Use the following chromatogram of standard amino acids: 24 16 19 21 12 15 6,6 9 10 23 13 14 17 18 10…

A: In chromatography, a higher retention time is linked to a higher affinity for the stationary phase…

Q: Clear eye drops are sold as a clear colorless liquid and contain 0.12% of nafazolin hydrochloride.…

A: Given: Volume of isotonic product = 5 mL Eye drops contains 0.12% of nafazolin hydrochloride.  The…

Q: How many mL of 6.00 ppm solution are needed to make 4.00 L of a 0.100 ppm solution ? (answer = 66.7…

A:

Q: The benzene ring can be saturated by supplying hydrogens in a rhodium-catalyzed reaction performed…

A: The correct answer is a. TRUE

Q: Calculate the pH of a carbonate buffer system that contains 0.0065 M HCO, and 0.0084 M CO,. The K,…

A: Given,  Concentration of weak acid, HCO3- = [HCO3-] = 0.0065 M  Concentration of conjugate base,…

Q: The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present…

A: N(t)=N0 exp[-k t]N(t) is the number of radioactive nuclei remaining at time t, N0 is the initial…

Q: In the following net ionic equation, identify the Bronsted-Lowry acid: NO2−(aq) + HS−(aq) HNO2(aq)…

A:

Q: If a non-polar mobile phase is used in a non-polar stationary phase, the polar components in a…

A: In the given question,  the nature of chromatograpy is discussed based on the polarity concept of…

Q: 2. Touprofen, the anit-inflammatory ingredient in Advil, has the formula C13HIBO2. a. How many…

A: We are authorised to solve only first three subparts of the question. Please post rest of the…

Q: Which of the following reagent is used for hydroboration?   a Phosphoric acid   b Tetrahydrofuran…

A: ★ Answer : Correct option is (b) Tetrahydrofuran.   ★ Hydroboration reaction is a two-step hydration…

Q: Which structure has the greatest number of pi electrons? A, Structure 1 B. Structure 3 C. Structure…

A:

Q: Consider the following reaction: 4 A(g) + 3 B(s) → 2C(s) It takes 2.00 L pure gas sample A at T=298…

A:

Q: CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3 100 - F 80 60 E 40 A 20 C 10 20 30 40 50 60 70 80 90 100 110 120…

A: N - octane molecular ion peak is at = 114. n - octane produces m,z at 15, 29, 43, 57, 71 ,85. (see…

Q: How much energy is required to raise the temperature of 10.6 grams of solid gold from 23.4 °C to…

A: Mass of solid gold = 10.6 grams  Initial temperature = 23.4 °C  Final temperature = 37.3 °C  Energy…

Q: A photon has an energy of 2.35 x 10–19 kJ. Find the wave length of the radiation in µm.

A: Energy of photon = 2.35 × 10-19 KJ  Wavelength of radiation (in μm)  = ?

Q: What reagents are needed in reaction 3? ... Br Br Reaction 1 Reaction 2 Reaction 3 CH3B AIBr3 (A)…

A:

Q: Above what Fe2+Fe2+ concentration will Fe(OH)2Fe(OH)2 precipitate from a buffer solution that has a…

A: Given,  pH = 9.77  Solubility product constant of Fe(OH)2 = Ksp = 4.87 x 10-17  Calculate the…

Q: What is the %composition of the Vitamin A peak in the sample? 78.43% 77.73% 7.867% 72.74%

A: To calculate % composition of vitamin A in the sample.

Q: Calculate the pH of a 0.020 M solution of phenylacetic acid, C6H5CH2COOH. What will be the pH if the…

A:

Q: Question 20 If a non-polar mobile phase is used in a non-polar stationary phase, the polar…

A: In chromatography separation of organic compounds the compounds are separated based on preferential…

Q: [H2] = 0.095 mol/L, [CO] = 0.035 mol/L, [CH3OH] = 0.065 mol/L. What is the value of the equilibrium…

A: Given :-  2H2(g) + CO(g) <---> CH3OH(g)  [H2] = 0.095 mol/L [CO] = 0.035 mol/L [CH3OH] = 0.065…

Q: Given is the mass spectra of n-octane whre peaks are labeled accordingly. Give the letter that…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Calculate the pH of a buffer solution consists of 0.10 M acetic acid and 0.15 M sodium acetate.…

A: Given,  Molarity of CH3COOH = 0.10 M  Molarity of CH3COONa = 0.15 M  Molarity of HCl added = 0.02M…

Q: Hydrocyanic acid is widely used in the chemical industry in the production of plastics, dyes, and…

A:

Q: Give the chemical structures of the following: 1. 1-octanol 2. Uknown

A: In this naming 1- octanol, the alchol group is present. -OH group is attached.

Q: ASt = fus J/(K mol) F TOOLS x10 ASap J/(K - mol) Determine the entropy change when 3.80 mol HCI(1)…

A:

Q: What is the %composition of the Vitamin A peak in the sample? O 7.867% 77.73% O 78.43% O 72.74%

A: To calculate % composition of vitamin A in the sample.

Q: Which of the following factors DOES NOT affect retention time of a sample undergoing normal phase…

A: Retention time indicates the time for which a component of the mixture is retained in the stationary…

Q: What is the estimated retention time of peak #4? 4 minutes 6 minutes 8 minutes cannot be determined…

A: To find estimated retention time of peak 4.

Q: The rate constant for the reaction is 0.420 M.s at 200 C. A- products If the initial concentration…

A:

Q: What is the energy change when the temperature of 14.2 grams of gaseous oxygen is decreased from…

A: Answer: In this question we have to calculate the change in internal energy of the gas keeping in…

Q: 6. For each numbered step in the qualitative analysis scheme in number 5 above, type all net ionic…

A: When we are constructing net ionic equations, we have to keep few points in our mind: Only salts in…

Q: At 1000°C, the reaction NO2(3) + SO23) mia NO(g) + SO318) has Ke- 4.57. Suppose 0.160 mol of NO2 and…

A: Given data Reaction: NO2 (g)+SO2 (g)⇔NO (g)+SO3 (g) Initial mole of gases are NO2=0.160…

Q: Which of the following studies WILL LEAST LIKELY use the standard chromatogram of caffeine? analysis…

A: To determine: Which studies will least likely use the standard chrmatogram of Caffeien

Q: 2)What is the definition of boiling point?  How is the boiling point affect by atmospheric pressure…

A: The temperature of a liquid at which the vapour pressure of liquid become equalt to the pressure…

Q: The fuel for a thermonuclear bomb (hydrogen bomb) is lithium deuteride, a salt composed of the ions…

A:

Q: One possible mechanism for the decomposition of ethane, C2H6, into ethylene, C2H4, and hydrogen,…

A: Given- C2H6 -> C2H4 + H2 ->Step in which free radical generated that is initiation step…

Q: The decomposition of NO2 is a second order reaction and the rate constant is 0.755 L/mol-s. In an…

A: The decomposition of NO2 follows second order reaction. Rate constant = 0.755 L /mol.s  Initial…

Q: Write the complete common (not IUPAC) name of each molecule below. Note: if a molecule is one of a…

A:

Q: What volume of each of the following acids will react completely with 25.00 mL of 0.200 M HCl? a.…

A: We have to find volume of base that react with 25.00 mL of 0.200 M HCl a. 0.100 M NaOH b. 0.0500 M…

Q: At a certain temperature, the reaction 2HF(s) = H2lg) + F2(g) has K. = 1.2 x 1013. Does this…

A:

Q: In a reverse phase chromatography setup, which of the following compounds will have the HIGHEST…

A: Ans : Toluene  (Toluene is non polar compound. Therefore elutes last in the reverse phase…

Q: Draw the major organic products for this reaction. Show stereochemistry in your structures. Then in…

A: Syn Hydroxylation of alkene :

Q: Given that E°red = -0.40 V for Cd2+/Cd at 25°C, find E° and E for the concentration cell expressed…

A:

Q: 8. What is normality of a solution containing 90g of HCI in 2600ml of solution? (Use the glven…

A: Given: Mass of HCl = 90 g Volume of solution = 2600 mL Molar mass of H = 1 g/mol Molar mass of Cl =…

Q: 2. Consider the reaction: Bra + Cla +→ 2B1CI(g) At 450K, the Keg for this reaction = 0.16 The…

A: Given reaction is :  Br2 (g) + Cl2 (g) <---------> 2BrCl (aq)  Value of equilibrium constant=…

Q: Which of the following is the product of alcohol addition to alkenes following Markovnikov rule? A…

A: ->when alcohol reacts with alkene following markovnikov's rule it form ether.

Q: Select the correct name for FeO Group of answer choices F (II) O Iron (III) Oxide F (III) O Iron…

A: Which one of the following is correct