The rate at which a liquid evaporates does not depend on which of the following factors? a. liquid surface area b. amount of liquid present c. temperature of liquid d. no correct response

Q: Calculate amount of amperes that are needed to deposit 0.001 mole Zn by electrolyzing 100.0 mL of…

A:

Q: 0.413 g of a gas fills a 250.0 mL flask and exerts a pressure of 0.996 atm at 21 C. What is the…

A:

Q: How much CuCl2•2H2O to prepare 50.00 mL of 0.02 M CuCl2 using solid CuCl2•2H2O

A: According to the question we have, The volume of the CuCl2•2H2O is given by = 50.00 ml = 0.05 L The…

Q: A buffer solution is made that is 0.328 M in CH3COOH and 0.328 M In CH3COO™. (1) If K₂ for CH3COOH…

A: Given that, a buffer solution contains 0.328 M of CH3COOH and 0.328 M of CH3COO-. We have to…

Q: The acid dissociation constant K of hydrocyanic acid (HCN) is 6.2 x 10-¹0. Calculate the pH of a…

A: We need to find the pH of HCN from the given data. Ka of HCN is given as 6.2 × 10-10 and…

Q: OH OH HO. oo O OH 애 HO.

A: When one will oxidise particularly one OH , then he has to block other OH groups. Thus concept…

Q: 2NF₁(g) + 3H₂(g) → N₂(g) + 6HF (9) - (This problem requires values in your textbook's specific…

A:

Q: Using data from the table below, write the equilibrium-constant expression and calculate the value…

A:

Q: When half of the HCHO2 has been neutralized: pH = i After a total of 15.0 mL of base has been added:…

A:

Q: he rate of reaction between mercuric chloride and potassium oxalate can be followed by measuring the…

A: We know that, From the rate law equation  Rate = K[HgCl2]^x[C2O4^-2]^y x and y are the order of…

Q: e QUESTION 15 The first ionization energy of an element is 3.72x103 kJ/mol. What is the frequency of…

A: Ionization energy is the amount of energy required to remove outermost electron from an atom in its…

Q: For which of the reactions below will Kp be equal to Kc ? A (g) + 2B (g) → C (g)+ 3D (g) A (g) + 2B…

A:

Q: A buffer solution contains 0.228 M CH3NH3Br and 0.438 M CH3NH₂ (methylamine). Determine the pH…

A:

Q: A piece of unknown metal weighs 348 g. When the metal absorbs 6.64 kJ of heat, its temperature…

A:

Q: draw the nucleophile and electrophile precursor for the structures below Azo Dye N OH groe…

A: The species that are electron loving are called electrophiles. They are electron deficient. The…

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

A:

Q: What will happen if 75.0mL of 0.015M Ca(NO3)2 is mixed with 1000mL of 0.0001M NaOH? Ca(NO3)2 + 2NaOH…

A:

Q: 1. What do you suppose is the molecular weight of the molecule that gives the mass spectrum below?…

A: Note:-  According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: EXPLAIN 3-5 sentences 1. Compared to esters or acid anhydrides, why do acid chlorides have the…

A: As per guideline i am doing frst one complete question. .

Q: In class, we talked about the differences in the heat of combustion of some fuels. Which of the…

A:

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 178. kJ during a…

A:

Q: Provide an acceptable name for the compound shown below. Spell out the full name of the compound.

A:

Q: To prepare 477.9 mL of dry N2, when measured at 22.5 C and 765.2 torr, what is the minimum number of…

A: Given, Volume of dry N2 = 477.9 mL=477.9×10-3 L Temperature, T = 22.5°C=(22.5+273)K=295.5 K…

Q: Oxygen gas was collected in 500.0 mL flask at 26 oC from the catalytic decomposition of hydrogen…

A: We are given a decomposition reaction and asked to calculate mass of reactant decomposed.

Q: e) HO = f) g) & H₂504 "OH methanol heat undergoes reaction. w/ HC in H₂0 со сна CH3CCH, NH (Excess)

A: As per the student's request I am solving only questions (e),(f) and (g).  e) When carboxylic acid…

Q: CH₂OH C=O CH₂OPO DHAP Triose phosphate isomerase H C O HCOH I CH₂OPO G-3-P Under standard…

A:

Q: Draw a diagram of the linear and ring structures of fructose. Show the biochemical mechanism of…

A: Fructose - also known as fruit sugar and found naturally. It is a ketonic sugar.

Q: How many moles of Na₂HPO3 would need to be added to 527.6 mL of 0.38 M NaH₂PO3 to produce a solution…

A: pH = pKa + log ([Salt]/[Acid])

Q: Aldol additions and condensations can also be catalyzed by aqueous acid. Write the mechanism for…

A:

Q: What is the wavelength, in nm, of an H₂ molecule (3.32 x 10-27 kg) traveling at 5.19 x 10³ m/s? Do…

A: The wavelength of such microscopic particles moving with certain velocity is given by de-Brogliee…

Q: We need to find the mass of Ca(OH₂) required to add in pond to make the pH to 7 from 4.29. This…

A: Since pH is given before and after the reaction, hence H+ ion concentration can be calculated from…

Q: Draw alkene formed after elimination reaction Н H3C Br Н 1 CH3 Н Н Н Br Н 2 CH3 CH3 H Br H2 H₂C 3 H…

A: Here we have to predict  the major product  alkene with stereo chemistry formed in the following…

Q: When a 23.2 ml sample of a 0.440 M aqueous hydrocyanic acid solution is titrated with a 0.361 M…

A: we have to calculate the pH

Q: The mass of a neutron is 1.6749 x 10-27 kg. How fast would it have to travel to be diffracted by a…

A:

Q: Which of the molecular orbital diagrams is correctly filled for the diatomic molecule R₂? (Each atom…

A:

Q: 1. An aldol reaction begins with addition of a catalytic amount of base to an aldehyde or ketone.…

A:

Q: what is the major E2 elimination product from the reaction below H DH Select one: O A. OB. O C. -CH₂…

A: The mechanism of given reaction can be explained as:

Q: OH Spell out the full name of the compound.

A: We have given structures and have to spell their name

Q: A student needs to prepare a buffer made from CH3COOH and CH3COOK with pH 5.074. If K₂ for CH3COOH…

A:

Q: Name the molecule shown below. OH L O (3R,4R,E)-4-(1,1-dimethylethyl)-5-methylhept-5-en-3-ol O…

A:

Q: At 25 °C and 765.6 torr, a sample that is a gaseous compound containing carbon, hydrogen, and oxygen…

A:

Q: A certain gas is present in a 14.0 L cylinder at 2.0 atm pressure. If the pressure is increased to…

A: According to Boyle's law , pressure is inversely proportional to volume of gas. OR the product of…

Q: Arrange the elements according to atomic radius, from largest to smallest. cesium fluorine arsenic…

A: -> On going left to right in periodic table size of elements decreases. -> On going top to…

Q: Highlight in red the 3° carbons in this molecule. Highlight the 4° carbons in blue. Cl OH

A:

Q: In the human body, the enzyme carbonic anhydrase catalyzed the interconvension of CO2 and HCO3- by…

A:

Q: Draw (using skeletal form) the chemical equation for the INTERMOLECULAR dehydration of 1-ethanol at…

A: Given -> 1- ethanol  -> Intramolecular dehydration of alcohol produce alkene . ->…

Q: NaHCO3 (aq) + CH3 COOH (aq) —> CO2 (g) + H2O (l) + CH3 COONa (aq) Calculates the amount of heat…

A: Volume of CH3COOH = 100 ml Volume of NaHCO3 = 2.5 ml (Note: It is usually in powdered form, so it is…

Q: for the following experiment what is the structural equation and a balanced stoichiometric equation

A: We have to write the structural equation and balanced stoichiometric equation for the given…

Q: ammonium sulfide copper(II) bromide  precipitate yes or no? empirical formula?

A:

Q: Consider the reaction: NH4Cl(aq) →→→→NH3(g) + HCl(aq) Using standard thermodynamic data at 298K,…

A: The answer is: ΔS°surroundings = -132.07J/K The detailed calculation is given below:

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.