xs. NABH4

Q: According to the second law of thermodynamics, the change in the entropy of the universe (ΔSuniv) du...

A: The second law of thermodynamics states that the total entropy of the universe always increases for ...

Q: Phenol (abbreviated PhOH) is a weak acid with a Ka value of 1.3×10–10.  What is the pH of 0.25 M PhO...

A: Since PhOH will dissociate as  PhOH ------> PhO- + H+  Hence concentration of H+ will be = concen...

Q: The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is __________.

A: The reaction is between acid and base  Hence the product will be salt and water Hence  HNO3 (aq)+ Sr...

Q: Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation...

A: Volume of N2 gas is 30.0 L Temperature of the reaction is 25.0˚C Pressure of N2 gas is 758 torr. No....

Q: Choose the acid-base conjugate pair that is most suitable for preparing a buffer with pH ≈ 9.a) HF/N...

A: The solution's pKa value provides information about the pH of the buffer solution. In order to calcu...

Q: name the phenol

A: Given compound is :      

Q: What is q if 28.6 g of water is heated from 22.0°C to 78.3°C? The specific heat of water is 4.184 J/...

A: The change in temperature taking place is,

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.89 L of He, how many atoms of H...

A: Since mass of He = density X volume  density of He = 1.18 g/L Volume of balloon = 2.89 L => mass ...

Q: MasteringChemistry: CHE154 S X session.masteringchemistry.co This Mac can't connect to iCloud I a pr...

A: Concentration of OH- formed during the dissolution of NaF in water is determined as follows,

Q: Hello, Please write reaction, balancing moleular equation, total ionic equation and net ionic equati...

A: Since the above reaction is double displacement reaction where the cations will displace each other....

Q: Chromium, Cr, has 24 electrons. Write out the entire electron configuration for chromium using spdf ...

A: Given, Number of electrons = 24 Electron configuration:  The complete description of the atomic orbi...

Q: Would you expect concentrated or dilute HCl react faster with a piece of mossy zinc? Explain.

A: The collision theory accounts for the quantitative calculation of any reaction's rate. The more "col...

Q: Rank the following from most reactive to least reactive in an E2 reaction

A: In E2 reaction, anti-elimination is always favoured over syn-elimination because staggered conformat...

Q: A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the ...

A: The addition of any certain solvent which attributes to the decrease in solute's concentration avail...

Q: A log is either oak or pine. It displaces 2.7 gal of water and weighs 19.8 lb. Is the log oak or pin...

A: The density for any substance is mass per unit volume. The expression of the density is shown below:

Q: For each of the following alkyl halides, indicate the stereoisomer that would be obtained in greates...

A: Hey since you have posted sub-part question, we will answer first three sub-parts only.  If you want...

Q: In which of the following solutions will CdS (Ksp = 1.0 x 10-28) be more soluble than in pure water?...

A: Since any solution which will produce ions which are present in CdS will definitely have solubility ...

Q: Which compound is more reactive in an SN1 reaction? In each case, you can assume that both alkyl hal...

A: Since in SN1 reaction, the stability of carbocation formed decides the rate of the reaction. So if t...

Q: Consider the reaction N2(g) + O2(g) <------> 2NO(g). Suppose the system is analyzed at a parti...

A: A fixed dimensionless number linked with all reactions and changes only with temperature is referred...

Q: Be sure to answer all parts. Write the reaction rate expressions for the reaction below in terms of ...

A: Chemical kinetics is the branch of chemistry that mainly deals with the rate of reaction and change ...

Q: only problem 16.52 (top) please. Thank you!

A: Given, Concentration of the C6H5CH2COOH solution = 0.085M. pH of the solution = 2.68. The concentrat...

Q: Given: If you weigh out exactly 0.150 g of an unknown substance to be dissolved in the 100.00 mL vol...

A: The fraction of solute’s amount and solution’s volume is considered as concentration. A solution’s c...

Q: HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient...

A:

Q: Why is an excess of Fe2+ necessary in the test for NO3- ? Explain, and write the equation

A: Oxidation is defined as process of addition of oxygen or an electronegative element to the substance...

Q: Ascorbic acid (Vitamin C) is a diprotic acid.( H2C6H6O6). It ionizes as follows   H2C6H6O6 (aq)   &l...

A: Weak acid undergoes moderate dissociation and produce ions when it gets dissolved in aqueous solutio...

Q: For each of the following values of K, indicate whether the forward reaction, reverse reaction, or n...

A: Since the equilibrium constant is proportional to the product concentration and inversely proportion...

Q: Reacting GeO2 with H2O forms the tetraprotic (four H+ ions) acid, H4GeO4.  write down the chemical e...

A: Please find below the dissociation reaction of H4GeO4  1) H4GeO4 -----> H3GeO4-  + H+ 2) H3GeO4- ...

Q: For a given substance, the liquid crystalline phase tends tobe more viscous than the liquid phase. W...

A:

Q: How much heat, in joules and in calories, must be added to a 75.8 g nickel block with a specific hea...

A: Given, Mass of Nickel = 75.8g Specific heat capacity = 0.445 J/g.0C. Initial T = 25 0C Final tempera...

Q: What volume of 5.00 M NaOH stock solution is needed to prepare 100.0 mL of 0.250 M NaOH solution? ...

A: Since the moles of NaOH in final solution should be same as the moles of NaOH we are taking Hence as...

Q: MasteringChemistry: CHE154 S X This Mac can't connect to iCloud b a problem with "ayanaboo10@gma A s...

A: Methylammonium chloride dissociates into quaternary ammonium ion (CH3NH3+) and chloride ions (Cl-). ...

Q: what structural considerations prevents the following bases from forming complementary base pairs?  ...

A: The three- dimensional structure of DNA is composed of four heterogeneous bases A, T, C and G. Adeni...

Q: How many unpaired electrons would you expect for chromium in [Cr(H2O)6]3+? Is this a paramagnetic or...

A: To determine the unpaired electrons, first make the orbital diagram of the transition element (centr...

Q: Liquid butane (C4H10) is stored in cylinders to be used as afuel. The normal boiling point of butane...

A: According to Gay-Lussac’s Law, for a closed system, at constant volume (isochoric process), pressure...

Q: Write the equilibrium constant expressions for each of the following chemical reactions:   a) CH3OH ...

A: The equilibrium constant is defined as the ratio of the equilibrium concentration of products to the...

Q: Draw the products of each of the following SN2/E2 reactions. If the products can exist as stereoisom...

A: Nucleophilic Substitution Reaction Bimolecular (SN2): The reaction taking place in between the alkyl...

Q: The acid-dissociation constant, Ka, for gallic acid is 4.57x10-3. What is the base-dissociation cons...

A: Base dissociation constant is a constant which occur at the equilibrium in which base reacts with th...

Q: Will GaP have a larger or smaller band gap than ZnS? Will it have a larger or smaller band gap than ...

A: Greater the electronegativity difference between metal and non-metal, greater will be the band gap. ...

Q: A 0.500 g sample of C7H5N2O6 is burned in a calorimeter containing 600. g of water at 20.0∘C. If the...

A: The molar mass of the compound is 213.12 g/mol. The number of moles of the compound is calculated be...

Q: Part A What mass of acrylonitrile can be made when the following pressures of reagents are used in a...

A:  

Q: estion 18 Write down the complete and net ionic equation for the following reaction SrBrz (aq) + K2S...

A: SrBr2 (aq) + K2SO4(aq) ----> SrSO4 (s)  + 2KBr (aq) Above is the balanced reaction  Since while w...

Q: A 2.00 mL solution of 0.00800 M Fe(NO3)3 is mixed with 3.00 mL of 0.00300 M NaSCN to form the blood ...

A: Any solution’s concentration provides the knowledge about relative quantity of solute available into...

Q: Identify the EXCESS reagent and determine its remaining amount when 5 moles of A and 12 moles of B r...

A: The chemical reaction is, A + 3B → 2C +D  

Q: Hi, Please write reactions to balanced molecular equation, total ionic equation and net ionic equati...

A: The balanced molecular equation must contains all the molecules involve in the reaction in the form ...

Q: A tank is first evacuated, and then connected to a 75.0 L cylinder of compressed nitrogen gas. The g...

A: Boyle's law explains that the pressure of the gas is inversely proportional to the volume of the gas...

Q: The fluorocarbon compound C2Cl3F3 has a normal boilingpoint of 47.6 °C. The specific heats of C2Cl3F...

A: The heat released on the conversion of CFC liquid at 10°C to 47.6°C, the heat required is calculated...

Q: Identify the spectator ions in the following molecular equation.  LiCl(aq) + AgNO3(aq) → AgCl(s) + L...

A: Converting the above reaction into ionic reaction  => Li+ (aq) + Cl- (aq)  + Ag+ (aq) + NO3- (aq)...

Q: Question 3 this lab was on buffer solutions  please show steps

A: HCl completely dissociates since it is strong acid. The concentration of H+ ions for a 1.0 M HCl sol...

Q: Draw the products obtained from the solvolysis of each of the following compounds in ethanol:

A: (a) The product formed from the solvolysis of given compound in presence of ethanol is, Both R and ...

Q: (a) What atoms must a molecule contain to participatein hydrogen bonding with other molecules of the...

A: a) The molecules which will be having a bond between H and O, F, Cl, and N will only show H bonding....

Vitamins and Coenzymes

A class of organic compounds needed in the human body for normal activities is known as vitamins. They are characterized into two parts depending upon their solubility in water. They can act as coenzymes, cofactors, or prosthetic groups for enzymes.