What is The Real Rule for Significant Figures? The Real Rule for Significant Figures: A. All the Certain Digits B. The first uncertain figure is the last significant figure C. All the certain Digits Plus One D. All the significant figures

Q: Find the IHD and fragment/cleavage

A: The structure of the unknown molecule can be affirmed by analyzing the spectroscopical results such ...

Q: 5. Chemical Xis a solid with white color that forms large crystals. The solubility of chemical X in ...

A: Solubility of a substance is the grams of substance dissolved in 100 g of H2O.

Q: Assign the two NMR spectra for the possible products Compound A: C-NMR 180 160 140 120 100 80 60 40 ...

A: The empirical formula or molecular formula of an unknown molecule is highly helpful in determining i...

Q: energy

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Q: A solution contains 117 g of potassium hydroxide, KOH, dissolved in sufficient H2O to give a total v...

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is def...

Q: 3. The Keq for imidazole binding to hemoglobin can be determined from the following linear equation,...

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Q: 4. A student had a sample of CaCl2 • nH20. He heated the sample until the mass did not change. From ...

A: Since you have posted multiple questions, we are entitled to answer the first only. The experiment d...

Q: 15) CH-CH=CH-CH-CH-CH, 17) 16) CH, CH, CH5 CH, C-CH, CH3 CH3 CH CH2 H3C CH CH3 CH2 H2C-CH3 CH3

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Q: Br NaOCH3 CH3OH Br NaOCH3 CH3OH

A: NaOCH3 is a strong nucleophile and base. So, it will undergo a second order mechanism. It is not a b...

Q: b) OH Hemiacetal H3C D Compound D could be converted into a cyclic hemiacetal in the presence of an ...

A: Aldehydes on treatment with an alcohol in the presence of an acid produces hemiacetal.  

Q: Q7. Kinetics were analysed for an enzyme in the absence and presence of inhibitor. In the absence of...

A: A multiple choice question based on kinetics of reactions that is to be accomplished.

Q: hy is bromination more selective than chlorination?

A:  bromination more selective than chlorination because 

Q: siame. hswers on the answe I. Multiple Choice: Chose the on 1. Which one of the following dienes wil...

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Q: Consider the molecule: \1 |2 13 14 C=C-C- C-H H. 1-butene Specify the hybridization of each carbon a...

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Q: Calculate the pI value of GE- dipeptide   The pKa values of the terminal amino and carboxyl groups...

A: Calculate the pI value of GE- dipeptide ?

Q: Select the answer that properly names all of the functional groups in the molecules below: H A B O A...

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Q: d). pОH %3D12.3 [oH]= 5.011823e-13 110-14 =.99니068구e-15

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Q: a) Caffeine, CgH10N4O2 b) THC, C21H30C

A: Given caffeine and THC

Q: Protein Concentration Standard Curve 0.7 y= 0.042x + 0.0378 R = 0.9867 0.6 0.5 0.4 0.3 0.2 0.1 10 12...

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Q: The vapor pressure of molecule X at 21. 7 C is 35 mmHg. Find the vapor pressure of this molecule at ...

A: Given : We have to calculate the vapor pressure of the molecule.

Q: Classify each of the following compounds as ionic (I), molecular (M), binary acid (BA), or oxyacid (...

A: This question is related to inorganic compounds and such compounds are classified into ionic, molecu...

Q: Explain in what circumstances (in other words, what kind of questions you would be answering) when y...

A: Answer -1

Q: Keeping in mind periodic trends, which is the strongest acid? O HCI О Her HI O HF

A: The correct option is:  

Q: Definition 4) Term Death from isopropyl alcohol an aromatic carbon ring system from which one Hydrog...

A: A hydrocarbon is a molecule that contains carbon (C) and hydrogen (H) as constituent atoms. Example:...

Q: Me H a. H NMR

A: For the given Diel' Alder product, there must be a diene and a dinophile moiety which upon reaction ...

Q: A carboxylic acid is more acidic than an alcohol. Why? electronegativity of the atom carrying a char...

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Q: The data in the table below were obtained for the reaction: 2CIO2(ga) + 20H-( CIO2(ag) + H2O) CIO3(a...

A: For the reaction,  2ClO2(aq)  +  2OH-(aq)  →  ClO3-(aq)  +  ClO2-(aq)  +  H2O(l), the data is given ...

Q: (0.43 M) as the anode and the half-cell Sn2+(x M) | Sn(s) as the cathode; the measured cell voltage ...

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Q: The equilibrium constant, K., for the following reaction is 83.3 at 500 K. PCI3(g) + Cl2(9)=PCI5(g) ...

A: Given Reaction:-  PCl3(g) + Cl2(g) -----> PCl5(g)  Value of equilibrium constant, Kc = 83.3 Molar...

Q: What is paper chromatography please include the importance of using it

A: Introduction :  Chromatography can be defined as a technique for separating different component of s...

Q: The second-order rate constant for the decomposition of nitrous oxide to nitrogen molecules and oxyg...

A: The rate constant with respect to temperature was explained by Arrhenius by using equation  lnK = (-...

Q: 70 65 Vapor 60 55 50 2.4 45 40 Liquid n diagram hexane 1.0 atm 35.1 30 0.0 0.2 0.4 1.0 0.6 Mole frac...

A: Soln

Q: Determine the reaction quotient for a mixture of the two gases in which [NO2] = 0.0151 M and [N2O4] ...

A: If Reaction quotient is greater than equilibrium constant than reaction is not in equilibrium.  The ...

Q: Please show a detailed mechanism for the cleavage, in base, of propylene oxide, CH3-CH-CH2, to propy...

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Q: Seawater contains about 3.5% by mass dis- solved solids. As a rough approximation, assume that the d...

A: Well, in order to calculate the boiling point, we need to convert NaCl concentration in morality. Wh...

Q: Assume that you used a 0.680 g piece of pure aluminum in the synthesis of alum and obtained a 83.5% ...

A: Given mass of aluminium = 0.680 g percentage yield = 83.5 ℅

Q: 1. ) If 46.3 g PCI3 is produced by the reaction 6C12(g) + P4(s) → 4PC13(1), how many grams each of C...

A: Phosphorous reacts with chlorine to form phosphorous trichloride. The equation for the balanced chem...

Q: The reaction of 2-oxacyclopentanone with hydrochloric acid in water (i.e., “excess") produces which ...

A: The solution is given below - 

Q: A compond has a molecular ion peak at M/Z = 72 in the mass spectrum. It has a sharp peak around 1730...

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Q: 1. pH of a substance at 7 is how many times the concentration of a pH of 6.

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: O Cameror 3/5 Gaseous ethane (CH, CH,) will react with gaseous oxygen (o,) to produce gaseous carbon...

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Q: 10. Which of the following describes a crystalline solid? a. Crystalline solids have particles that ...

A: There are three phases of matter. The phase of matter can be interchanged by changing the temperatur...

Q: Due to similarities in protein composition, blood can be subsituted gram-for-gram for eggs in baking...

A: The protein composition of blood and egg is similar.So blood can be substituted for eggs in baking r...

Q: What makes nanotechnology special in terms of how it is used to develop products? *   A. It helps in...

A: Nanotechnology can be defined as branch of chemistry  that  uses of matter on atomic and supramolecu...

Q: a) Ketoacid Z below can be synthesized from ethyl acetoacetate W via an acetoacetic ester synthesis....

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Q: moles

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Q: CH3 CH3 H3C

A: Soln

Q: c) Compound A below undergoes Dieckmann cyclization to give compound B in the presence of a base. Di...

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Q: Given the reaction: CUSO, 3H,O CUSO, 2H,Oi + H,Oja the AH° = 9900 and AG° = 4500 at 25°C. Calculate...

A: Partial pressure of water vapours

Q: 1. (a) Write as many chemically reasonable syntheses as you can think of for ethyl 2-methylpropyl et...

A: Soln

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.