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Q: Choose from the following gases which are unsuitable for use as a GC carrier gas? A. Helium B. Oxyge...
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Q: Name the following compounds (Amine) 1st pic
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Q: 1 point Hydrogen sulfide, H2S, is a foul-smelling gas. It burns to form sulfur dioxide 2H2S( g) + 30...
A: Mass of hydrogen sulphide = 26.7g Molar mass of hydrogen Sulphide = 34.0g/mol
Q: Propose a synthesis for the following compound from benzene. OCH3
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Q: I got a task in analytical chemistry to calibrate, standardize, verify and validate an analytical ba...
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Q: Which type of isomerism exists between the pair of monosaccharides below? Diastereomers Non-i...
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Q: HO NH2 Name the numbered functional groups in the structure O 1. carboxyl 2. amido 1. carboxyl 2. am...
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Q: The more stable the bonding MO, the less stable the correspondi antibonding MO. True False
A: Given : We have to tell whether the statement is true or false.
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Q: how to calculate delta H in this picture by using Excel program?
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Q: Consider this reaction: 2H,PO, (aq) → P,05 (aq) +3H,0 (aq) At a certain temperature it obeys this ra...
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Q: What is the enthalpy of formation (AH°;) of NaHCO3(s) from its constituent elements?
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Q: The rate of a certain reaction is given by the following rate law: rate=k[H,] Use this information t...
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Q: Deduce the structure of a compound with molecular formula C,H1002 that produces the following 'H NMR...
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Q: What is the product of the CNO cycle? What do you think it is called CNO cycle?
A: CNO cycle It is known as the carbon, nitrogen and oxygen cycle.
Q: Alkylation of acetylide ions with alkylhalides or i tosylates
A: alkylation
Q: fenojoroter CAntiartritic Agent) CH CH3 CHs HO CH NH NHz C=0 OH Amo xicillin (Anti biotic)
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Q: Consider the following chemical equilibrium: C(s) +2 H, (g) =CH, (g) Now write an equation below tha...
A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical eq...
Q: give 2 examples of enthalpy, entropy, and Gibbs free energy.
A: Examples of enthalpy, entropy, and Gibbs free energy are given below
Q: Hydrogen sulfide and oxygen react to form sulfur dioxide and water, like this: 2H,s(g)+30,(g) → 2S0,...
A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on ...
Q: Please answe the following question: 1. What are two most common alkalis used in soap making? 2. W...
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Q: entration In che artemis
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Q: The force that holds the two atoms together is the attraction of the two nuclei attraction of an ato...
A: Choice 4th is correct.
Q: 21
A: We are given phase diagram of Benzene we have to find out the boiling point for benzene and also fin...
Q: All the following statements are true about sigma bond EXCE O The electron density is high in the re...
A: Sigma bond : It is the strongest covalent bond formed by head on overlapping of atomic orbitals.
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Q: 3 ) CH3), CHOCOCHb 6) CH, CH,CN (i) CH3CH2)2 NH HO
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Q: How to prepare 10% of sodium iodide in acetic acid
A: How to prepare 10% of sodium iodide in acetic acid is given below.
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Q: c) The following organic solvents were used in reversed phase HPLC analysis. Propose the elution ord...
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Q: A chemical engineer is studying the following reaction: 2 H,S(g)+302(g) → 2 SO,(g)+2H,0(9) At the te...
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Q: Indicate the contrast statements of the following chromatographic techniques of separation. A. A sep...
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Q: The graph below shows two titration curves: 40.0 mL of two different acids are titrated with 0.100 M...
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A: Nuclear magnetic resonance (NMR) is the characteristics of nuclei which is the dependent on the appl...
Q: OH OH Na2Cr207 H3O* Select to Draw
A: Oxidising agent can be defined as a substance that oxidises other species and itself get reduced in ...
Q: In a study of the rearrangement of cyclopropane to propene at 500 °C (CH2)3- →CH3CH=CH2 the concentr...
A: Step by step solution are below
Q: 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from 32...
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Q: While looking over some of her lab data, a chemistry student notices she forgot to record the number...
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Q: AAS is the most widely used instrumentation for the analysis of metal and traces metal samples. Stat...
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Q: Draw the coupling product of the Pd(0)-catalyzed Suzuki reaction between the compounds shown. Show t...
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Q: Using the reaction mechanism, and the accompaning diagram shown below, answer the following. a) Whic...
A: The slowest step in the reaction mechanism is the rate determining step. Enthalpy change of a react...
Q: a Write the molecular equation which completes the following. The reaction occurs in an aqueous solu...
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Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of t...
A: Bulb A: 100. mL of H2S(g) at 190. torrBulb B: 200. mL of He(g) at 1.00 atmBulb C: 500. mL of N2 (g) ...
Q: 1. KMNO4, OH- (warm) 2. H3O* Select to Draw
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- Use the following atomic masses (in g/mol):Mg = 24.31; O = 16; Ca = 40.08; C = 12.01; Na = 23; H = 1; N = 14.01; S = 32.06; Cl = 35.45; 2.) Limestone consists chiefly of mineral calcite (CaCO3). The carbonate content of 0.5413g of powdered limestone was measured by suspending the powder in water, adding 10mL of 1.392M HCl and heating to dissolve the solid and expel CO2. The excess acid required 39.96mL of 0.1004M NaOH for complete titration to a phenolphthalein end point. Find the % wt of calcite in limestone.The thermal and mechanical processing of materials is an important step in ensuring that they have the appropriate physical properties for their intended application. Suppose a metallic element undergoes a phase transit ion in which its crystal structure changes from cubic close-packed to bodycentredcubic. (a) Does it become more or less dense? (b) By what factor does its density change?ProvidethecanreetuPACname OMC
- onlyroundoffat 2decimalplaces in final answer tyIron has an atomic weight of 55.85 g/mol and a density of 7.86 g/cm3. It crystallizes in a cubic unit cell with an edge length of 0.46 nm. How many atoms are in the cell?The maximum solid solubility of carbon in ferrite occurs at 0.022 wt% C and 727 ° C, the eutectoid composition is 0.76 wt% C, the maximum solid solubility of carbon in austenite occurs at 2.14 wt% C and 1147 ° C, and the cementite composition is 6.7 wt% C. For 2122 g of a 3.2134 wt% C steel at 726 ° C, what will be the mass of carbon present as part of a compound?(a) 67.9 g(b) 74.2 g(c) 58.7 g(d) 83.5 gPleasseeeeee explain
- What possible uses exist for the natural gas liquids that are removed from natural gas during its processing?Use the Born-Mayer equation to estimate the latticeenthalpy of calcium sulfide. CaS. The crystal adopts a rocksalt structure w ith the distance between the centres of nearest neighbours being 284 pm.The density of the classified vibranium steel alloy of captain america is suprosinglylow 1.56g/cm^3. knowing the shape of the shield can be properly approximated to a cylinder of radius of 42,9 cm and height of 5.54nm. how heavy is the shape in kg
- Crystal structure of Alo.5Gao.5AS Based on the zincblende crystal structure for GaAs, sketch the structure of Alo.sGao.5As. The lattice constant for Alo.sGao.5As is a = 5.653 Å. (a) Calculate the atomic density per unit volume for Alo.5Gao.5As. (b) What is the atomic density per unit area on the (100) and (110) planes? (c) The atomic radii for Al, Ga, and As are, respectively, 1.25 Å, 1.30 Å, and 1.15 Å. Using the hard-sphere model, estimate the lattice constant for Alo.5GA0.5As and compare the result with the value given above.The thermal and mechanical processing of materials isan important step in ensuring that they have the appropriatephysical properties for their intended application. Suppose ametallic element undergoes a phase transition in which itscrystal structure changes from cubic close-packed to bodycentred cubic. (a) Does it become more or less dense? (b) Bywhat factor does its density change?8. For a bronze alloy with a cross-sectional area of 300 mm² and a modulus of elasticity of 120 GPa, the maximum stress that can be carried by the alloy without plastic deformation is 300 MPa. If the original specimen length is 95 mm, what is the maximum length to which it may be elastically stretched? (a) 0.24 mm (b) 95.24 mm (c) 237.50 mm (d) 332.50 mm