Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-1 m. Wavelength (nm) Frequency (Hz) 10-³ 10% Gamma rays Type of radiation Gamma rays X rays Ultraviolet Microwave Infrared 10-¹ 101 X rays 10 10% Ultra- violet 10¹ 1014 Visible Infrared 105 1012 107 10% Microwave 10⁰ 10% 1011 106 Radio waves 10⁰3 104

Q: Graphically find the concentration in ppm and then calculate in mol/L of Soda #1 and Soda #2?

A: Caffeine Std (ppm) Absorbance (270 nm) 1 0.179 2 0.39 3 0.673 4 0.787     Soda #1 0.233…

Q: The city of Kearney's latest water quality report includes sulfate ion (SO42-) concentration.  Find…

A: The equilibrium equation is,                                     BaSO4 (s) ⇌ Ba2+ (aq) + SO42- (aq)…

Q: 0.92 M

A: From Henderson equation we know that    pH = pKa + log [salt] / [acid ]   ............ (1)

Q: Dilution was “the solution to pollution” for much of human history. What is the meaning of this…

A: Dilution was "the solution to pollution" for much of human history, when populations were small.…

Q: A medication order calls for 536 mL of D5WNS to be administered over 10 hours. Calculate the…

A: Given: A medication order calls for 536 mL of D5WNS to be administered over 10 hours.

Q: A solution contains 6 umol Na,SO, in 284 ml. How many ppm Na" does it contain? A.W Na-23 S-32 0-16…

A: The question is based on the concepts of solutions. we have been given number of moles of solute. We…

Q: Pick one to respond to. Why does salt added to a road before snow help but salt added after snow do…

A: When salt is sprinkled on the road before a snow then a phenomenon takes place which is freezing…

Q: During the dilution process, the amount of solvent remains the same.   Question options:   True…

A: Dilution is the process by which the concentration of solute decreases in the solution by adding…

Q: Solute amount Solution volume Solution Concentration (Liters) (Molarity) (moles) 0.500 0.500 1.000…

A:

Q: Rank the following compounds in order of increasing solubility in hexane:

A: Interpretation : We have to tell the solubility of hexane.

Q: Discuss the advantages and disadvantages of using chlorine as disinfectant.

A: An antimicrobial agent that can be applied to the surface of some things in order to eradicate the…

Q: I. Fill in the table of the needed information. Note: There may be more than one solute/solvent…

A: A solute is the constituent(s) of a solution that is present in a smaller amount and the solvent is…

Q: What is the purity test of synthesized aspirin and commercial aspirin?

A: When salicylic acid reacts with acetic anhydride , Aspirin formed.  It is formed by acetylation of…

Q: 7. Graduated cylinders can be used if an experiment calls for specific volumes but without the level…

A: All graduated glassware can be read with one uncertain digit, i.e. the uncertainty if +/- 0.1 is the…

Q: A 14.3 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If…

A: In the given question we have to calculate the mass Percent of perchloric acid. the given data: mass…

Q: (SHOW CALCULATIONS) The Environmental Protection Agency sets limits for copper in drinking water at…

A: Given,Concentration of copper ( Cu ) in drinking water by mass = 1.3 ppmMolar mass of copper =…

Q: culate CaCO3 concentration: Ca2+:149.2 mg/L as CaCO3, Mg 2+ : 65.8 mg/L as CaCO3, Na+ :17.4 mg/L as…

A:

Q: 5. The element that belongs to group II is _6. The element in a gaseous state is represented by. _7.…

A: There are 7 periods and 18 groups in the periodic table.  The properties of the elements down the…

Q: Refill the burette with the standardized 0.5 M NaOH solution provided. Record the initial volume of…

A: Moles of NaOH required = Moles of vinegar (acetic acid) neutralized

Q: A student dissolves 68g of compound Q in one liter of hot water. All of compound Q dissloves. The…

A: 68 g of compound Q is dissolved completely in 1 L of hot water. At room temperature mass of compound…

Q: You dissolve 427.2 g of phosphorous acid to make a 1.62 L stock solution. What volume (in mL) of…

A:

Q: ubstances with london forces between water, fuel, nail polish remover and alcoholic drink

A: London dispersion acts between molecules with electric symmetry

Q: The densities of water, mercury and gasoline is shown below. Water 1.0 g/mL Gasoline 0.701 g/mL…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Explain the principle behind the use of cold packs and hot packs. What chemicals are found in each…

A: These hot and cold packs are used by the athlete for reducing the injury to the muscles and joint…

Q: the concentration in parts per billion (ppb)

A: The environmental protection agency (EPA) has set the legal limit, known as the maximum contaminant…

Q: Describe the process of separating salt from sand.Write in one paragraph. Write the word and their,…

A: Evaporation and filtration is the process by which we can separate the mixture of common salt and…

Q: 2. Water is the universal solvent. A. Why is water considered the greatest solvent on Earth? B. Draw…

A:

Q: Suppose that your hydrated salt sample was contaminated by an anhydrous salt. You do not realize…

A: The reported percent of water in the hydrated salt will be too low because the second anhydrous salt…

Q: No Plagiarism Please! In one to two sentences, describe the process by which the ionic compound,…

A: Lithium chloride is a chemical compound with a chemical formula “LiCl”. The salt is a normal ionic…

Q: What hazards are involved in evaporating a solvent from a solution in a laboratory environment?

A: Solution is made up of two components: Solute and Solvent. Component which is present in major…

Q: Which solute when dissolved in water would be the best conductor of electricity?       Your answer:…

A: Ionic compounds are defined as neutral compounds that consist of positively charged metal ions and…

Q: Match the following terms to their definitions: Aqueous solution, cation, centrifuge, decant, flame…

A: Given A solution of one (or more) substances dissolved in water is called .... ?

Q: Discuss the importance of boiling point elevation, vapor pressure lowering and freezing point…

A: Colligative properties are the properties that depend on the number of atoms or molecules or ions…

Q: 7. Many pharmaceuticals contain aromatic rings or large hydrocarbon areas (nonpolar). Quite often,…

A: To predict solubility of given pharmaceutical compounds on the basis of polarity and also show the…

Q: I need to calculate the Molarity of the solution. I am attaching what I thought I needed to do but…

A: Molarity = number of mols of solute / volume of solution in liter

Q: , how many grams of AgNO is required to prepare a volume of 100 ml at a concentration of 05 M,…

A:

Q: A student placed 16.0 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve…

A: Given: Mass of glucose in the initial solution = 16.0 g. Volume of initial solution = 100 mL = 0.100…

Q: Calculate the number of grams of CuCla.2H20 solid needed to prepare 25.00 mL of 0.0450 M CuCl.2H20…

A: Given: Molarity of CuCl2. 2H2O = 0.0450 MVolume of solution = 25.00 mL

Q: (SHOW CALCULATIONS) The Environmental Protection Agency sets limits for nitrates in drinking water…

A:

Q: The average salt content of seawater is equivalent to 0.599 M NaCI (density What is the…

A: To solve this problem we will use formula to calculate ppm concentration, Molarity , Molality and…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.