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Q: Propose a structural formula for each compound consistent with its 1H-NMR and 13C-NMR spectra.

A: The structural formula for each compound consistent with its 1H-NMR and 13C-NMR spectra has to be pr...

Q: Determine the number of moles of hydrogen atoms in sample. 1.3 mol CH4

A: The number of moles of hydrogen atoms in a sample. 1.3 mol CH4 has to be given,

Q: Which of the ten reactions in glycolysis are phosphorylations?

A: Glycolysis is the process by which one molecule of glucose is converted into two molecules of pyruva...

Q: Some measurements of the initlal rate of a certaln reaction are glven In the table below. N, H, init...

A: Concentration of N2 and concentration of H2 And intial rate of reaction H2 and N2 are reactants So, ...

Q: Chemistry Question

A: SOLUTION Number of Aluminium atoms = 6.022×1023 atoms Atomic mass of aluminum = 26.98 g/mol Moles of...

Q: A 1.00 × 10–6-g sample of nobelium, 254/102 No, has a half-life of 55 seconds after it is formed. Wh...

A: The percentage of 254/102 No remaining after time t, are to be calculated where the half life is of ...

Q: How are the compounds in attached pair related to each other? Are they identical, enantiomers, diast...

A: The compound are as follow :

Q: Suppose the decomposition of nitryl chloride proceeds by the following mechanism: step elementary...

A: For complex reactions the rate determined step is the slowest step of the reaction having lowest rat...

Q: Which one is it?

A:                                 Answer  A beaker containing a liquid is left to sit undisturbed over...

Q: A student writes out the ground state electron configuration for Sr as: 1s2 2s2 2p6 3s2 3p6 3d10 4s2...

A: Applying aufbau's electronic configuration of elements with rule of finding group of elements.

Q: Water can be decomposed to form hydrogen and oxygen, and the hydrogen and oxygen can be recombined t...

A: The decomposition reaction of water is,  

Q: The decrease in freezing point of a dilute solution compared to that of the pure solvent, ATf, is ca...

A: By addition of solute to a pure solvent there is a decrease in freezing point of the solution is obs...

Q: Questions attached

A: Given information,    Mass of CaCl2 is 17.17 g    Volume of solution is 734 mL = 0.734 L

Q: Draw the conjugate bases of pyrrole and cyclopentadiene. Explain whythe sp3 hybridized C—H bond of c...

A: The conjugate bases of pyrrole and cyclopentadiene has to be drawn.

Q: What is the molecular formula for 1-propanol?

A:

Q: List the characteristic properties of noble gases, alkali metals, halogens, and alkaline earth metal...

A: The characteristic properties of noble gases, alkali metals, halogens, and alkaline earth metals hav...

Q: What is A H°xn for the following reaction, if given the three known reactions below: 2C4H4 (g) + N2 ...

A: Given data: 6C(s)+3H2(g)→C6H6(g)         ;∆Ho1=49.0kJ     -----14C(s)+2H2(g)→C4H4(g)                ...

Q: A0.100 Mionic solution has an osmotic pressure of 8.3 atm at 28 °C. Calculate the Van't Hoff factor ...

A:

Q: At a particular temperature, K, = 1.91 x 10 for the reaction H2 (9) + 1 (g) = 2HI(g) If 2.77 atm of ...

A: The partial pressure is the pressure applied by individual gas of the among the mixture of the gas.

Q: What are the common name of nasal drops or nasal spray that contain zinc chloride?

A: common name is sodium chloride

Q: Calculate the concentration of Cu in the sample by calibration curve using the following data Co...

A:

Q: Write two applications of adsorption.

A: To find: The two application of adsorption

Q: If 0.10 M formic acid is put in water, 4.15% dissociates to form formate ion and hydronium ion.HCOOH...

A: Given 0.10 M formic acid is put in water, 4.15% dissociates to form formate ion and hydronium ion. 

Q: Moles and Chemical Formulas A. Finding the Simplest Formula 43.58 Oi 23 43.81 43.95 1. Mass of empty...

A: The relationship between moles, mass and molar mass is: Number of moles = Given massMolar mass

Q: 4-Methylpyridine reacts with benzaldehyde (C6H5CHO) in the presence of base to form A. (a) Draw a st...

A: a) A stepwise mechanism of the given reaction is,

Q: action between liquid reactants takes place at -12.0 °C in a sealed, evacuated vessel with a measure...

A:

Q: What value of absorbance corresponds to 45.0% T?

A: Given, Percentage Transmittance = 45.0 % Therefore, T = 0.450 The value of absorbance has to be cal...

Q: Explain the Biodegradable Polymers ?

A: Biodegradable polymers: An alternative to the traditional and harmful polymer has been found out whi...

Q: II www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-IBcWcplLoFLoU71DOb3zrKPTUHJHevE88rwcc M ...

A: Distribution of electrons in a shell or subshell is called electronic configuration. While writing e...

Q: Write structural formulas for the following compounds. 2-ethoxyoctane

A: Structural formula: A formula contains elemental symbols connected with lines; these lines are known...

Q: What is the pH of 0.015 M aqueous benzoic acid (C 5H 6CO 2H)? (pKa = 4.20)   a. 4.20   b. 3....

A:

Q: Understanding the common modes of radioactive decay.

A:

Q: Question: Relationship to reaction profiles: catalyst / enzymes lower activation energy Help pleas...

A: A catalyst increases the energy of reactant molecules so that a chemical reaction can take place.

Q: Which one is it?

A: If the solute moluces are surrounded by solvent molecules, it is commonly called solution.

Q: The rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NH,NCO(aq)→(NH2)½CO(aq) i...

A: For these second-order reactions, the integrated rate law is: where, [A]t is the concentration of A...

Q: Beryllia (BeO) ceramics have some use but show only poor resistance to strong acids and bases. Write...

A: The chemical equation for the reaction of BeO with a strong acid and with a strong base has to be gi...

Q: Will you please help find the molar solubility as well

A: Answer:- This question is answered by using the simple concept of calculation of molar solubility us...

Q: Haemoglobin, the red blood protein responsible for oxygen transport, binds about 1.34 cm3 of oxygen ...

A: The given data contains, Volume of blood = 100 cm3. Concentration of Hb = 150 g dm-3.  

Q: Write the acidic equilibrium equation for HPO2

A: In chemical reaction, equilibrium is when both reactants and products are present in concentration w...

Q: An ion has a mass number of 208 and an atomic number of 82, how many electrons does it have if the i...

A: The number of electrons in the given element has to be given, Given is: The atomic number is 82. The...

Q: What is meant by ‘reducing sugars’?

A: To find: The definition of reducing sugars

Q: Describe how you would prepare each of the following aqueous solutions: 1.20 L of a solution that is...

A: Given data contains, Volume of solution is 1.20L=1200mL. Mass percent of Pb(NO3)2 is 15.0%. Density ...

Q: A decay series starts with the synthetic isotope 23992U. Thefirst four steps are emissions of a β-...

A: The decay series of 23992U goes through two emissions of beta particles and two emissions of alpha p...

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to tit...

A: From the formula of molarity and reaction between given compounds we can determine the Molarity of N...

Q: Use the ball-and-stick model to answer each question about carbidopa, a drug used in combination wit...

A: In ball and socket model, - White ball – Hydrogen Black ball – Carbon Read bass - Oxygen Blue ball –...

Q: The boiling point of hydrocarbons decreases with increase in branching. Give reason.

A: The boiling point of hydrocarbons decreases with an increase in branching. Their reason has to be gi...

Q: What happens to the chemical energy of a lithium-ion battery as it is discharged topower a laptop co...

A: The chemical energy in the battery converts to electrical energy , this energy gets deposited to the...

Q: What was the internal heat when the change in energy was 750 J and the work by the system was 200 J?...

A: Given: Internal energy, U = 750 J Work done by the system, w = +200 J Heat, q=?

Q: What feature must any molecule or ion have in order to act as a Lewis acid?

A: According to the Lewis concept, acids are electron pairs acceptors while bases are electron pair acc...

Q: What is the main structural difference between amylopectin and glycogen?

A: The main structural difference between amylopectin and glycogen has to be given.  

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.