H D none of these

Q: Problem #4 A sealed jar whose volume is exactly 1 liter contains exactly 1 mole of air at 20 deg…

A: Given V = 1 L n = 1 mol T = 200C = ( 273 + 20 ) K = 293 K

Q: 30 A natural water contains: 3x10-5 M Ca2+, 9x 10-9 M OH-, 5.2x 10-4 M HCO3- and 2x10-11 M : -CO32…

A: GIVEN Alkalinity of Ca2+   =3×10-5MAlkalintiy of OH-    = 9×10-9MAlkalinity of HCO-3=…

Q: the factors that affect the rate of diffusion of substances

A: The process of transport known as diffusion involves moving a substance from one area of higher…

Q: b) c) НО ОН HBr 0ºC -H2O H₂SO4 80 °С -H2O Br.

A: Alcohol gets prtonated to produce oxoniumion whcih eliminates water molecule to produce carbocation.…

Q: Problem #3 A given quantity of gas at a pressure of 750mmHg and a temperature of -25° C occupies…

A: First check the values at STP and then use appropriate formula to find out new volume at STP.

Q: 100 cyclobutanol Transmittance %T 50- 0 7. Associate each spectrum (AE) with one of the isomers in…

A: From the above spectrum, we can get an idea about different streching frequencies and following…

Q: Problem #3 o A given quantity of gas at a pressure of 750mmHg and a temperature of -25° C occupies…

A:

Q: of (C) Freezing of a liquid 6) Which of the following systems has a negative sign of AS (A) H₂O →…

A:

Q: Current Attempt in Progress Steam can cause more severe burns than water, even if both are at the…

A:

Q: Is the function f=2x²+6y²+3z² eigenfunction of the operator = d² d² d² ? + + dx² dy² dz²

A:

Q: Your job is to design a cold pack using the endothermic process of dissolving NH4NO3. The dissolving…

A: On dissolution of Ammonium Nitrate in water heat is released. This heat is then gained by water…

Q: Q3: Consider the reaction, NO+ONO+O using the data in the table. Calculate AG of the reaction.

A:

Q: b) In a second experiment to verify the value of x, the pharmacist heated a 3.752g sample of the…

A: Given, mass of sample of lysine hydrate =3.752 g mass of sample after heating =  3.278 g

Q: Part B The molecular formula mass of this compound is 210 amu. What are the subscripts in the actual…

A:

Q: Draw a Lewis structure for each of the following species: ▶ Part A Part B co Draw the molecule by…

A:

Q: Q13. In an experiment to determine the rate constant of hydrogen peroxide hydrolysis reaction, which…

A:

Q: Show that an exothermic reaction accompanied with an increase in enthalpy always occurs…

A: Change in Gibbs free energy of the process is    ∆G = ∆H - T∆S During the phase transition ∆G =0 For…

Q: Goslarite, a hydrated zinc sulfate mineral (ZnSO4 7H20). is added to 1.7 L of water to form a zinc…

A: Calculate the molar mass of Goslarite is as follows: ZnSO4 7H20 = Zn + S +4*O +7(H2O)…

Q: Determine the oxidation state for each of the elements below. The oxidation state of The oxidation…

A:

Q: A 20.0 g cube has one side equal to 1.50cm. What is its density?

A: Mass of cube = 20.0 g Volume cube = (1.50)3 cm3

Q: A solution is prepared by mixing 500 mL of 0.10 M NaOCI and 500 mL of 0.20 M HOCI. What is the pH of…

A: The given data is as follows: The concentration of NaOCl = 0.10 M The volume of NaOCl = 500 mL The…

Q: A good sample of benzoic acid melts at 121-122˚C. However, a student had a sample that melted over a…

A: Given: A good sample of benzoic acid melts at 121-122˚C. However, a student had a sample that melted…

Q: An ion in the second column of the periodic table has 74 protons. How many electrons does it have?…

A: Given, In periodic table the ion belongs to the second column. Number of protons = 74  Number of…

Q: The reaction shown below proceeds by both an SN1 and an SN2 mechanism. Draw the products of each…

A:

Q: what is C2-C3 bond and what is C1-C2 bond？how does breaking C2-C3 bond gives ch3-ch2？what is the…

A: A carbon chain gets number from higher priority to lower one. The given carbocations are propyl and…

Q: The reversible chemical reaction A+B⇌C+D has the following equilibrium constant: Kc=[C][D][A][B]=3.7…

A:

Q: Question 4 ( Match each description on the left with the most accurate thermodynamic term on the…

A:

Q: Which of the following gives a buffer solution when equal volumes of the two solutions are mixed?…

A: A buffer solution consists of two solutions. They are - a weak acid and the salt of its conjugate…

Q: ch3nh3+ what is the polarity and justification

A: It is asked to justify the polarity on CH3NH2.Lets discuss.

Q: Most ring fusions in a steroid molecule are: Cis Parallel Trans Anti

A: Steroid molecules generally have a four fused cycloalkane rings. For example cholesterol.

Q: Correlate the photoelectron spectra of N2 and O2 with their respective molecular orbital diagrams.

A: The photoelectron spectra of nitrogen and oxygen are described with the help of MO diagram as…

Q: At the temperature and pressure of point d, which statement below is true? 300 (Pc) Pressure (atm)…

A:

Q: A. Br B.

A: During nomenclature of organic molecules: Choose the longest hydrocarbon chain. Give the lowest…

Q: Convert 83.0 μL to deciliters.   Convert 83.0 μL to kiloliters.   Convert 83.0 μL to megaliters.…

A:

Q: Given the standard enthalpy changes for the following two reactions: <ΔΗ° question = (1) 2Zn(s) +…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: This is your graph. The rate of reaction at any point in time is given by the gradient of the…

A:

Q: goslarite, a hydrated zinc sulfate mineral (znso4.7h2o) is addded to 1.9 L of water to form a zinc…

A:

Q: Problem 1.56 Part A Indicate the formal charge on each carbon that has one. All lone pairs are…

A:

Q: What volume of a 10.5 M solution of sodium hydroxide (NaOH) must be diluted to prepare a 200. mL…

A: Solution is made up of two components : a solute and a solvent.  Solute is generally present in…

Q: Two 20.0 g ice cubes at -10.0 °C are placed into 265 g of water at 25.0 °C. Assuming no energy is…

A: Two 20.0 g ice cubes at - 10.0 °C are placed into 265 g of water at 25.0 °C .We have to calculate…

Q: General Chemistry, Organic Chemistry and Biochemistry course changed the way that you see and…

A: General chemistry – Today chemistry is all around us. What we see, what we hear, what we touch, and…

Q: Н. 0. 0. Н Н Н Н Н Н нн Н H H Н Н Н Н H H Н H H H

A: The acidic strength of protons is determined by the stability of resulting anion (after the release…

Q: Draw the skeletal structure of 3-isopropyl-7-methyloct-7-en-1-yne

A: The skeletal structure represents the series of atoms which bonded together to form the essential…

Q: b. melting of ice c. boiling of water d. all of these e. none of these

A:

Q: CH3 CH₂CH₂CH₂ CH,C—CH CH—(CH, CH₂CH3 pentane decane What is the parent chain in this alkane? octane…

A: The parent chain in an alkane is the longest consecutive carbon chain. The number of carbons in the…

Q: convert concentration of 5 micrograms/ml to mg/ml

A:

Q: What is 72.0 °F in C and K?

A: Fahrenheit F, Celsius C and Kelvin K are three different units of temperature .Here, we have to…

Q: The solubility of a gas in water at 25 °C and 4.48 atm pressure is 0.506 mol L-1. Determine the…

A: Given: The solubility of a gas at 25 ∘C and 4.48 atm pressure = 0.506 mol L-1 We have to calculate…

Q: IV. Summary Questions 1. Calculate the mole fraction of each component in a liquid mixture…

A: Mole fraction of a component A in a minute of A and B is given by the following equation,  XA =…

Q: How many carbon atoms are in the parent chain?

A: How many carbon atoms are in the parent chain?

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for