Give the oxidation number of the underlined elements in each of the following chemical species: (a) Caso. (d) Cro 1. (b) KCrO (e) PO10 (h) PO, (e) CaCO, () SO, (g) HSO, (i) NF,

Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the entropy of…

A:

Q: Which of the following refers to a composition in which its components cannot be separated by…

A: Distillation :- It is a method of separation of mixture of liquids based on their difference in…

Q: The vapor pressure of pure CCl4 at 65oC is 504 mmHg. How many grams of naphthalene (C10H8) must be…

A: Given- Vapour pressure of pure CCl4=504 mmHg Weight of CCl4= 25.00 gram  Vapour Pressure of solution…

Q: Using net ionic equations and solution stoichiometry, calculate the molarity of the principal…

A: net ionic equation is- CH3COO- + H+→CH3COOH (aq) Also, Moles = Molarity  * Volume

Q: Which of the following sequences show an increasing strength of acidity? I. HNO2 (Ka=4.0 x 10-4)…

A:

Q: Rank the relative rates of the following alkyl halides in an E1 reaction.

A: Elimination reaction of alkyl halide: Alkyl halide gives an elimination reaction by reacting with a…

Q: Predict the conjugate acid of CH,O'. A) CH,ОН В) СН,ОН, + C) CH,O? '2 D) CH,O

A: We have to predict the conjugate acid of given species.

Q: 3. What is the correct cell notation for a voltaic cell based on the reaction below? Ni²"(aq) +…

A: 3.Cell notation is the symbolic representation of galvanic cell. In cell notation, anode is written…

Q: What is the percent of chloride ion in a sample if 2.500 g of the sample produces 1.750 g of AgCl…

A:

Q: Meo OMe NMe

A: We have to carry out the given transformation.

Q: 7. Devise a cell for evaluating the solubility product of PbSO4. Calculate the solubility product…

A: Temperature = 298 k  E° for the following reaction = -0.35 V  PbSO4 + 2e- <----> Pb + SO42-…

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the lons in…

A: Answer: Ionic compounds are always neutral compounds, therefore cations and anions will combine in…

Q: Average density of a particular substance is 0.9981 g/cm3. What is the volume of 4501.190 grams of…

A:

Q: This picture shows = H,0 A) an insoluble ionic solid B) a partially soluble ionic compound C) a…

A:

Q: Select Rings More Erase Draw HNO3 + H,0 H2SO4

A:

Q: ag) + 2 e - Mnes) E--1.18 V + 2e 2 CI (ag) E° - 1.36 V ) + 2 e - Ca(s) E--2.85V - 2 e - 2 F (aq) E-…

A: In electrolysis,   Anions move towards anode and anion which have lower reduction potential is get…

Q: Which practice is NOT used to gauge accuracy? raw data and results from calibration checks B.…

A: Correct option is (e) sample rejection .

Q: A The equation for the formation of nitrogen monoxide is N2(g) + O2(g) + 90.2 kJ → 2NO (g) a Is the…

A: Exothermic reaction :-  A reaction in which heat is released is known as exothermic reaction For…

Q: Write a balanced acid ionization reaction tor the acid given below. Use the tollowing tormat to…

A: Given,  Acid = HSO4-  Write a balanced acid ionization reaction for the acid given below = ?

Q: 2.Describe four different ways in which the enthalpy change associated with the following chemical…

A: The reaction can be given as  HNO3(aq)+ KOH (aq) →KNO3(aq)+ H2O And the reaction generated 53.4…

Q: Why are molecular orbitals formed? Molecular orbitals often better explain our complex bonding…

A:

Q: Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the Gibbs energy of…

A: Here we are required to find the Gibbs energy of mixing when water and ethanol are mixed

Q: Considering perfect gases, which state function is zero when two substances are mixed?…

A:

Q: Calculate the wavelength of the photon absorbed by CO in the following vibration-rotation…

A: For CO Molecule Reduced mass mr  =mC×mOmC+mO=11.387×10-27 kg

Q: Questions: 1) A sample of antacid tablet that contains NaHCO3 is analyzed in the lab. The student…

A: Given that -  Mass of an antacid tablet, containing NaHCO3 = 1.50 g  Volume of HCl = 35.0 mL = 0.035…

Q: The atomic mass unit is based on the mass of the _________ atom.

A:

Q: Use the References to access important values il needed tor this question. In the laboratory, a…

A: Here CH3COOH is weak acid.  Weak acid are those which does not dissociate completely in aqueous…

Q: 2. Determine the formal charges on S and C in the structure below, then draw a better structure in…

A:

Q: The reaction C(s) + 2H, (g) = CH,(g) has K, - 0.263 at 1000. K. Calculate he total pressure at…

A: Dalton's law states that total pressure of  mixture of gases is equal to the sum of the partial…

Q: Multiple Choice 017 0.015 0.062 050 012

A: Here the half life of 90Sr is 29 year. We have to determine the fraction of 90Sr left after 175…

Q: Identify all the functional groups present in Viracept. HO N. OH Viracept Used in the treatment of…

A: The various functional groups present in the given molecule are shown by circles as follows-

Q: ve isomerizetlion of cyclopropane to form propene is a first-order reaction. HC-CH: HC-CH=CH, CH; 1…

A: Given-> Time = 79.0 minute ->85 % of cyclopropane changes to propene.

Q: For each of the reactions at constant pressure, determine whether the system does work on the…

A: Work done in chemical reaction- > W = -∆ngRT Where ∆ng = ng(product) - ng(reactant)

Q: Which statement is NOT correct concerning 2,3-bisphosphoglycerate (BPG)? It binds at a distance from…

A: The accumulation of 2,3-BPG decreases the affinity of hemoglobin for oxygen. Ultimately, this…

Q: At 400°C, Kc = 64 for the equilibrium H2(g) + 12(g) = 2HI(g). If 3.00 mol H2 and 3.00 mol 12 are…

A:

Q: A student attempts to determine the molecular weight of an unknown liquid with a boiling point of…

A: To explain the reason why the student is unable to determine the molecular weight.

Q: An air-standard Diesel cycle has a compression ratio of 18 and a cut-off ratio of 2.5. The state at…

A:

Q: Which of the following is the phase diagram of water-nicotine system? TIK 210 Composition phase P.2…

A: The phase diagram of the water nicotine system is

Q: Adenoie osphate (ATP) SAdnyionine SAM) What is the role of each reactant in the reaction above? What…

A: Question is that, what is the role of the reactant.? 1. In the first step reaction, triphosphate…

Q: The half-life of 14C is 5730 yr. Find the number of disintegrations per hour emitted by 1.0 mol of…

A: half-life of 14C is 5730 yr.

Q: regard

A: According to the question, we need to explain why NaOH be a poor choice for the base, as opposed to…

Q: Write the balanced NET ionic equation for the reaction when aqueous BaCl, and aqueous (NH,),SO̟ are…

A: • Aqueous barium chloride on reaction with aqueous ammonium sulphate gives aqueous ammonium chloride…

Q: A 0.1510 g KHP (MW = 204.22 g/mol) sample required a volume of 57.04 mL of NaOH solution to reach a…

A:

Q: 3.33 Calculate the standard free energy change for the follow- ing reactions using the standard cell…

A:

Q: For the reaction N2(g) + 3 H2(g) 2 NH3(g) Kc= 0.0600 at a certain temperature. In an equilibrium…

A: • The given reaction is,          N2 + 3H2 ⇌ 2NH3(g)  • The values provided in the question are:-…

Q: Ba List the number of protons, neutrons, and nucleons (protons + neutrons), in that order, for an…

A:

Q: A solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 ml of mixture…

A:

Q: What is the slope of an Arrhenlus plot for the following reaction? 2NOCI - 2NO + Cl2 Temperature (K)…

A:

Q: In a two-vessel technique titration set-up, what is the unknown substance if the volume of…

A: Given  A titration method is given we have to find out the unknown substance .

Q: The half-ide of years. Whet fraction of the atoms in a semple of Sr would remain 175 years later?

A: 29 years from this data, we can find the decay constant λ here. lamda=0.693/29=0.24years The T hub…