Calculate the amount of heat needed to boil 133.g of ethanol ( CH3CH2OH ), beginning from a temperature of −45.7°C . Be sure your answer has a unit symbol and the correct number of significant digits.

Q: Classify the following substituents according to whether they are electron donors or electron…

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Q: O Macmillan Learning C A concentrated HNO3 (MW = 63.0128 g/mol) solution is 70.0 %wt HNO3 and has a…

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Q: How many moles of arsenic is 2.345 x 1019 atoms? How many moles of carbon are in a 1.00 carat…

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Q: Describes the procedure for discarding Isoflurane after using it.

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Q: The concentration of carbonic acid in normal blood is 0.029 mol/L and the pKa for carbonic acid is…

A: Given,the concentration of carbonic acid in normal blood = 0.029 mol/LpKa of carbonic acid = 6.1pH…

Q: Identify the acid and conjugate base pair in the following: HSO3- + CN- ⓇHCN + SO32- CN- and SO32-…

A: The Bronsted-Lowry acid-base theory states that the acid is a substance that gives H+ ions and the…

Q: the wavelength (in nm) of a photon of light with an energy of 3.37×10-20 J.

A:

Q: An unknown compound has the following chemical formula: C₂Hx where x stands for a whole number.…

A: The empirical formula of any compound is the simplest whole number ratio of all the atoms present in…

Q: 3. The following graph of the fractional distillation is the mixture (mol/mol ratio) of…

A: Definition of boiling point ~ The boiling point of a liquid is the temperature at which it starts to…

Q: Match each amino acid to the electrical charge it would possess at physiological pH, pH 7.4. OH HO…

A: amino acids

Q: when a sample of metal (density =19.4g/cm^3) is placed in a graduated cylinder containing some…

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Q: what is the chemical reaction for this procedure?

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Q: [References] Draw the major organic product of the reaction shown below. OH + NaH You do not have to…

A:

Q: Identify the functional groups in aspartame. O -OH CH₂OH CH₂ HẠN—CH–C-N-CHC-0-CH3 Check all that…

A: We have to identify the functional groups present in the given structure.

Q: What is the IUPAC name of the alcohol? OH fill in blank fill in blank -methyl- octanol Report your…

A: To write the IUPAC name of given compound: 1) select the longest carbon chain as parent chain.  2)…

Q: Calculate the mass, in grams, of the water produced by dehydration synthesis of 3 moles of lysozyme.…

A:

Q: A 1.2 M urea(aq) solution is separated from pure water by a semipermeable membrane. During osmosis,…

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Q: Acetone and isopropyl alcohol are generally not suitable for use in extraction, but are frequently…

A: Extraction is a technique used in chemistry to isolate a target compound. In the extraction process,…

Q: 1D TopSPIN Multiplet Table ID Shift [ppm] J[Hz] M 1 7.9901 7.0159 2 7.6243 6.9655 7.2951 6.9655 3 2…

A: 1H NMR spectroscopy is useful to determine structure of organic compounds.Proton NMR spectroscopy…

Q: 4. Fill in the following phase changes: Solid to Liquid= Liquid to Solid= Liquid to Gas= Gas to…

A:

Q: The standard enthalpy of a certain reaction is approximately constant at +125 kJ mol-1 from 800 K up…

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Q: what is the number of moles of Pi contained in 0.70ml of 4 mM KH2PO4?

A: Given data is volume of KH2PO4 solution= 0.70 mL molality of the solution= 4mM

Q: Once you finish using Chlorhexidine, what is the procedure for safely disposing of it?

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Q: What is the 'H NMR splitting pattern of the indicated hydrogen? triplet doublet H Question 14 What…

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Q: When this molecule reacts with H Br, two stereoisomers are formed. Part: 0/3 OH Part 1 of 3

A:

Q: How many atoms are in 43.9 g of potassium bromite (KBrO2)?

A: Mass of potassium bromate given = 43.9 g We have to calculate the no. of atoms

Q: Draw 2 fatty acids and a triglyceride. C5H1002   saturated     C5H802 unsaturated      C5H10O2

A: Fatty acids  consist of carboxylic groups.The carboxylic group consists of COOH.The term saturated…

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

A: Given,The reaction:

Q: According to the reaction below, which of the following products will be formed?…

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Q: (iii) (ii) Η Ο II H₂N-C-C-OH H -CN

A: Addition polymer: monomers contain a double bond. For example, propene molecules can polymerize with…

Q: Consider the unbalanced equation for the neutralization of acetic acid: HC₂H3O2 (aq) + H₂O (1) +…

A: mole of HC2O2 = 0.461 mol

Q: Consider the reaction shown below. Classify compound A as which of the following: HO A ONa OH 0 Na…

A: According to Bronsted-Lowry acid-base theory1. Proton (H+) donor is acid 2. Proton (H+) acceptor is…

Q: A reaction has a rate constant of 1.27×10−4 s−1s−1 at 29  ∘C ∘C and 0.233 s−1s−1 at 76  ∘C ∘C .…

A: Answer:This question is based on Arrhenius equation which is mentioned below:Here: and  are the…

Q: Part A Predict the products of the acid-base reaction between the following substances: Interactive…

A: Predict the products of the given acid-base reaction:

Q: Select reagents from the table to show how you would carry out this transformation. If more than one…

A: In the given reaction the alkene is converted into carboxylic acid with an extra carbon atom. The…

Q: Calculate the energy (in joules, J) of 9.2 moles of photons having a frequency of 4.7 x 1015 s-1

A:

Q: Vanillin can be recrystallized from water because it is slightly soluble in warm water. Which…

A: Vanillin can be recrystallized from water because it is slightly soluble in warm water. The…

Q: How many unpaired 2p orbitals are there for the oxygen atom, 6C? A. 2 B. 1 C. 0 D. 3

A: We have to find the unpaired electron in 2p orbital of oxygen atom.

Q: Geologists can estimate the age of rocks by their uranium-238 content. The uranium is incorporated…

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Q: Draw the two major products obtained in the reaction shown. Br₂ (one equivalent) . CH₂Cl₂ You do not…

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Q: 12. A large soft drink has a volume of 0.950 L. What is this volume in cm³? 13. A stream flows at a…

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Q: O KINETICS AND EQUILIBRIUM Deducing a rate law from initial reaction rate data Some measurements of…

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Q: Draw Lewis structures, including all lone pair electrons and nonzero formal charges, and g…

A: In SO3, the central atom (S) has six valence electrons, where all are used in the process of bonding…

Q: 2 NOBr(g) → 2NO(g) + Br₂(g) In the given reaction, which is taking place in a 1.0 L flask, 8.0x10-4…

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Q: 3. Both compounds below have a base peak in their mass spectra that differs from the parent peak.…

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Q: 1. How many MOLES of xenon trioxide are present in 1.67 grams of this compound? 2. How many GRAMS of…

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Q: Consider the first-order decomposition of H2O2 with the rate constant of 1.8×10−5s−1 at 20 ∘C. How…

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Q: 13. Complete the following nuclear equations by filling in the missing atomic symbols then classify…

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