Q: Thermite" reactions have been used for welding metal parts such as railway rails and in metal…
A: Heat absorbed by the surrounding = 227.3 kJ/molSurrounding temperature = 298.15 K
Q: Octane (C8H₁8) has a vapor pressure of 14.3 torr and a density of 0.703 g/mL. Benzene (CH) has a…
A: The question is based on the concept of solutions. we need to calculate vapour pressure of the…
Q: Consider these reactions: Reaction 1: H₂(g) + Cl₂(g) → 2HCl(g) Reaction 2: 20F2 (g) → O2(g) + 2 F2…
A:
Q: what is IPUAC name for CH3CH2CH2CH2CH2CH2CH2-O-CHCH3?
A: General formula for ether functional group : R-O-R' where R and R' are same or…
Q: What is the theoretical pH of a 0.1 M HCI solution? 02 0 1 O -1 Cannot be determined. O 13
A: pH : pH is a measurement of the acidity or alkalinity of a solution. It is defined as the negative…
Q: What is the isotope symbol for atoms that contain the following numbers of subatomic particles? a)…
A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…
Q: 1. What is the composition of the nuclei modeled by these symbols? How many protons and neutrons?…
A: Two questions based on nuclear reactions. Explanation for nuclear notation and the conversion into…
Q: using the matrix way
A: a: Na2S4O6b: H2O2c: Na2SO4d: H2Oe: H2SO4
Q: The value of pOH of HCI solution at 25 °C if cell potential of the cell is 1.6655 v Pt/ H2(g. 1.0…
A: The electrode where reduction process takes place is called cathode and where oxidation takes place…
Q: The osmotic pressure of a solution containing 2.10 g of an unknown compound dissolved in 175.0 mL of…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A 10.04 mol sample of krypton gas is maintained in a 0.8022 L container at 299.1 K. What is the…
A:
Q: resonance structure.
A: Enoltes are formed by the removal of acidic hydrogen from carbonyl compounds such as…
Q: A biochemist carefully measures the molarity of salt in 84.1 mL of photobacterium cell growth medium…
A:
Q: 13) Consider [MnX6]4, where the ligands, X are especially strong-field ligands and are monodentate.…
A:
Q: 1. The following reaction between potassium, permanganate, and manganese sulfate in water produces…
A: To balance the equation using the vector approach, we assign variables (coefficients) to the…
Q: A student made malachite for his roommate's paint for his art class. This student used different…
A: Given that :Theoretical yield of malachite = 0.4827 gCost of starting materials = $ 0.0370To be…
Q: % Transmittance (a.u) 100 80 60 40 20 0 4000 r Pure anhydrous CAF 3500 3000 2500 2000 Wavenumber…
A: The question is based on the concept of IR spectroscopy. we need to assign characteristic bands for…
Q: Consider the following choices when answering questions 86-89. b) c) P 808080 080808 808080 c.…
A: A question based on mixture of compounds. 5 pictures are given that are to be distinguished based on…
Q: O Br Na* CEN HCI
A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: 200-10. Balance the following oxidation-reduction S8 + NO3- equation. The reaction occurs in a basic…
A: To balance the oxidation-reduction equation in a basic solution, we need to follow these steps:Split…
Q: ہم ة فرم
A: The question is based on the concept of organic synthesis. we need to synthesize the product using…
Q: a. Classify this sugar based on its structural characteristics. A possible answer D-aldopentose. Н Н…
A: A sugar or saccharide is a polyhydroxy aldehyde or ketone. These are the building blocks of…
Q: Calculate the molarity of a 3.4 mol of Na_2CO_3 dissolved in a 100mL solution.
A: moles of Na2CO3 = 3.4 mol Volume of the solution = 100 mL = 0.1 LMolarity of the solution = ?
Q: Complete the following reactions. Only include all the products. a. b. CH3 H3C CH3 + H₂O + H₂O
A: Alkene are the chemical compounds having c- double bond. This double bond is responsible for its…
Q: Describe the differences between the infrared spectra of butanoic acid and 2-butanone
A: Butanoic acid and 2-butanone are two different compounds with distinct molecular structures, and as…
Q: Determine the molarity of a solution formed by dissolving 72.8 g C6H12O6 in enough water to yield…
A:
Q: 0 acids: bases: other: 0 acids: bases: other:
A: The compound that can donate H+ ions in its solution is called an acid and the compound that accepts…
Q: CD et bookmarks…
A:
Q: At what point in the titration have you reached when 22.0 mL of 0.200 M KOH has been added 20.0 mL…
A: In the titration, the point where the indicator changes color is known as the end point. The point…
Q: 33. Aspirin (C9H8O4), which many students take after a chemistry exam, is prepared by the reaction…
A:
Q: The oxidation number of oxygen in ozone, O3, is a. +3 b. -3 c. +2 d. -2 e. 0
A:
Q: After drawing a mechanism for this reaction determine which intermediate cannot be formed. A H…
A: A question based on reaction intermediate. 5 options are given, the most inappropriate intermediate…
Q: Consider a galvanic electrochemical cell constructed using Cr/Cr3* and Zn/Zn?+ at 25 °C. The…
A: The electrode with higher reduction potential of the metal is known as cathode. In this cathode,…
Q: QUESTION 5 Which of the following is true for a transition state (TS): A. TS must have at least one…
A: Transition state of a reaction is a particular configuration along the reaction coordinate.…
Q: Hypothetical element X has 3 stable isotopes. The relative peak intensities are 58.74 for 180.0 u.…
A:
Q: To determine the heat of reaction for the reaction: CO2 + 3H2 → CH4OH(g) + H2O(g) at a temperature…
A: To determine the heat of reaction at a specific temperature, we need to use the equation:ΔH = ΔH° +…
Q: 4) Draw the mechanism for the following Reaction. همه ده THE
A: Intramolecular cyclisation takes place when same molecule contains nucleophilic center and leaving…
Q: (b) Cr₂O72 (aq) + 14 H(aq) + 6 e → 2 Cr³+ (aq) + 7 H₂O(1) ->>> 3 [H₂O₂(aq) → O₂(g) + 2 H(aq) + 2 e]…
A: 8(b)
Q: C1- For each chiral carbon labeled in the structures below (see the numbers), assign R or S absolute…
A: For the chiral carbon i.e. the carbon atom having four different groups attached to itself.If the…
Q: Ethyl chloride (C₂H₂Cl) can be used as a topical anesthetic, for example prior to giving a painful…
A:
Q: For the molecule shown below, provide the names for all of the indicated functional groups: 1.…
A: A functional group is a group of atoms or bonds inside a substance that is responsible for the…
Q: Need BEER'S LAW WITH FULL STEPS BY STEPS EXPLANATION DERIVE LAW. OK. NOTE: NO BEERS LAMBERT LAW.…
A: In this problem, Beer's law is to be defined and the derivation of Beer's law is to be done.
Q: Details Preparation of Dilute Table Solution Molarity of I₂ Standard Solution Molar Mass (g/mole)…
A: We are given the observation and calculation table of titration of ascorbic acid with iodine…
Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…
A: Hydrogen sulfide gas reacts with dioxygen gas to produce gaseous sulfur dioxide and water.Reaction…
Q: Give the major product of this reaction sequence. 1) (CH3)2CuLi 2) weak acid (aq NH4CI) BA
A: The question is based on organic reactions. we need to identify the product formed and explain…
Q: Using the molar enthalpies of formation and the formula, determine the change in enthalpy for the…
A: The combustion reaction of methanol is shown belowCH3OH (l) + #O2 (g) → CO2 (g) + 2H2O (g).We have…
Q: Calculate the pH of a 0.45M NH4Cl solution.
A:
Q: 1. Why is oxygen NOT a greenhouse gas?
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: 1) Consider the following reaction:NH,NO, +_Na,PO, (NH₂)₂PO₂ +_NaNO₂ Assume we start with 30.0 grams…
A: Few subdivision questions based on introduction to chemistry. Each question are to be answered based…
Q: Erwin Schrödinger Use the References to access important values if needed for this question.…
A: In The given question we have to identify the shape of orbitals. planes where the orbitals do not…
Step by step
Solved in 3 steps
- a) If a liquid with x(Ge)=0.4 is cooled, at what temperature does the first solid appear? b) What is the composition of this first solid? c) Describe the phases present at the eutectic temperature when a 50/50 mix of Al and Geat room temperature is heated. Be specific.1. An organic student did an experiment extracting benzoic acid from a mixture of other organic substances. Other analyses of the obtained sample confirmed the presence of benzoic acid. The student also measured the melting point of the white solid, 117.4-121.6 oC. The literature mp of benzoic acid is 122.3oC. What can you conclude about the sample? Select one. Group of answer choices The sample of benzoic acid contains soluble impurities. The student obtained a good yield of benzoic acid. The sample of benzoic acid contains insoluble impurities. The student obtained pure benzoic acid from the extraction. The student obtained a poor yield of benzoic acid. 2. Which phenomenon are sometimes confused with melting during mp analysis? Select all that apply. Group of answer choices decomposition cracking shaking sagging/shrinking sweating solidifying 3. Study the bond types in the compound shown. Select the type(s) of intramolecular force(s) you predict the substance to exhibit. Select all…TRUE OR FALSE: 1. Solids such as naphthalene when heated will pass thru a process called condensation prior to sublimation when being purified. 2.If water and n-propyl alcohol were mixed, the separation of individual components is possible with steam distillation because these two have a wide range of boiling point difference. 3. When an impurity in the synthesized camphor such as sodium chloride is present, the sublimation technique cannot be used to purify the camphor due to the nature of NaCl. 4. Organic solvents such as hexane or ether are an excellent medium to recrystallize an impure benzoic acid 5. In caffeine extraction, it is important that the tannic acid component of coffee be converted to its free acid state to avoid any interference with the extraction of caffeine
- Given the following mixture of two compounds 30.00 g of X (liquid) (MW =58.00 g/mol)(density 1.088 g/mL) and 880.00 g of Y (50.00 g/mol))(density 0.808 g/mL), calculate the mass percent of X. Given the following mixture of two compounds 35.00 mL of X (MW =80.00 g/mol)(density 0.945 g/mL) and 735.00 mL of Y (80.00 g/mol))(density 0.810 g/mL). The vapor pressure of pure Y is 47.00 torr. Calculate the vapor pressure of the solution.3.1 Calculate the volume of concentrated (98% v.v) H2SO4 that you will need to prepare 250ml of an 5.4 M H2SO4 solution. Density of 98% v.v H2SO4 = 1.84 g/cm3The vapour pressure of diethyl ether (C2H5OC2H5) at 25 °C is 545 mmHg. A closed 233 L drum contains 195 g of diethyl ether. The density of diethyl ether is 0.7133 g/ml. Approximately how many grams of diethyl ether in the container would be in the vapour phase at 25 °C? Round your final answer to three significant figures.
- Referring to the Al-Si Eutectic diagram discussed on the Phase Diagrams-Lever Rule handout, calculate the mass fraction of the phase, silicon, given a sample with 51.7 wt% aluminum at 576.99 ˚C.What is the boiling point of the automobile radiator fluid prepared by mixing 1.02 L of ethylene glycol (HOCH2CH2OH, density = 1.114 g/mL) with 1.04 L of water (density = 1.000 g/mL)?Why would industry prefer to purify solids by sublimation or zone refining rather than recrystallization? (Hint: is there anything wasteful about recrystallization)
- solve as neatly as possible and show completesolution. Round your final answer to 4 decimal places and box / highlight all final answers. and all values must include proper units with proper conversion if needed in your solution. kindly folllow the format Given,Required,Solution 8. At 250C, the interfacial tension between water and n-octyl alcohol is 8.50 dyne/cm. If the surface tension of n-octyl is 27.53 dyne/cm and that of the water is 72.75 dyne/cm, predict whether water spreads on the alcohol by calculating a) Work of cohesion of n-octyl b) Work of adhesion and c) the spreading coefficient of water on the alcohol.I s it possible to carry out steam distillation at a temperature higher than 100C at 1 atm? ExplainWHAT TECHNIQUE WOULD YOU USE TO SEPARATE TWO IMMISCIBLE LIQUIDS THAT HAVE BOILING POINTS THAT ARE 25 DEGREES CELSIUS APART? i know simple is wrong. it is either steam, fractional or vacuum. thanks!
