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Q: A 0.598 M aqueous solution of acetone ( acetone mw= 58.0 amu) is prepared by dissolving acetone in e...

A: Given,Molarity of acetone = 0.598M.Volume of solution = 75.0mL = 0.075L.The moles of acetone can be ...

Q: A body-centered cubic unit cell has a volume of 4.32x10^-23 cubic centimeters. Find the radius of th...

A: Given:Volume = 4.32×10-23 cm3

Q: if you start with 1M of ribulose 5-phosphate and 1m of ribose 5-phosphate, what would be the equilib...

A: The equilibrium concentrations of ribulose 5-phosphate and ribose 5-phosphate can be calculated usin...

Q: Convert 2.3 hours to seconds

A: Units conversion:

Q: When 4.4 grams of NH4NO3 is decomposed in a closed container, it will produce N2, O2 and water vapor...

A: The partial pressure of nitrogen gas is calculated in step two.

Q: The solubility product (Ksp) of Ca3(PO4)2 is 1.3 ×10. In a 0.02 M solution of Ca(NO3)2, the solubili...

A: The dissociation of Ca3(PO4)2 in the given calcium nitrate solution occurs as,

Q: In this experiment, you preformed an extraction to separate the aqueous and organic solvent layers. ...

A: In this experiments (extraction) based on the density of the organic solvent and water.During extrac...

Q: The density of 70.5 wt% aqueous perchloric acid is 1.67 g/mL A. How many grams of solution are in 1....

A: Density is a physical quantity that can be determined with the help of the mass and volume of the gi...

Q: Calculate the pH of a solution which is 0.50 M in HA (a weak acid) and 0.80M in NaA. (Ka for HA = 3....

A:

Q: A sample consisting of 1.00 mol of the nitrogen gas is expanded isothermally and reversibly from 24....

A: Temperature can be determined using Ideal Gas Equation as follows,

Q: Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken...

A: Given,Energy = 187kJ.

Q: Calculate the standard molar enthalpy for the complete combustion of liquid ethanol (C2H5OH) using t...

A:

Q: The mole fraction of silver nitrate, AgNO3, in an aqueous solution is 1.83×10². %. The percent by ma...

A: Given that mole fraction of silver nitrate is 1.83×10-2. The mass percent can be obtained by simply ...

Q: Lithium chloride has a solubility of 45.80 g in 100. g of water at 25°C. Express this solubility in ...

A: Given that lithium chloride has a solubility of 45.80 g in 100 g of water at 25 degree Celsius. Numb...

Q: What is the mass in grams of 2.50 gal of water? The density of water is 1.00 ...

A: 1 gallon of water has a volume of 3.785L. Convert 2.50 gal into millilitres.

Q: An unknown anhydrous salt has the folowing mass composition 65.95% Ba and 34.05% Cl. Dtermine the em...

A: Given information:Percent composition of Ba by mass = 65.95 %Percent composition of Cl by mass = 34....

Q: Which of the following aqueous solutions will have the highest boiling point? Select one: a. 0.08...

A: The boiling point of water is 1000C.  All the solutions have water as solvent.  Addition of salt to ...

Q: Select the choice in which atomic number, mass number, number of neutrons, and number of protons lis...

A: Option (b):Mass number of phosphorous= 32.Atomic number of phosphorous= 15.Number of protons of phos...

Q: A chemist adds 445.0mL of a 0.024M copper(II) sulfate (CuSO4) solution to a reaction flask. Calculat...

A: Given data,

Q: PETA is also an explosive, but not as famous as TNT. Upon detonation, PETN will decompose to form di...

A: The gaseous state is the state of matter with least intermolecular force of attraction between molec...

Q: What is a good way to remember ionic bond?

A:

Q: Find the pH of a 0.600 M solution of methylamine CH3NH2. Kb = 4.4 x 10-4. %3D

A: Given,Concentration of methylamine = 0.600M.Kb = 4.4*10-4. 

Q: Two 20.0 g ice cubes at −17.0 ∘C are placed into 245 g of water at 25.0 ∘C. Assuming no energy is tr...

A: Given,Mass of two ice cubes, mice = 2 * 20.0 g = 40.0gMass of water, mwater = 245 gInitial temperatu...

Q: Ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. From...

A: Given,Initial temperature (T1) = 164.50C = 437.65K.Final temperature (T2) = 179.00C = 452.15K.Rate c...

Q: Enter the symbol of the element which would have 54 electrons and +2 charge.

A: A neutral atom is made up of protons, electrons and neutrons. While electrons carry a negative charg...

Q: Heavy water, D2O (molar mass = 20.03 g mol–1), can be separated from ordinary water, H2O (molar mass...

A: The rate of diffusion of a gas is inversely related to the square root of its molar mass. Hence, the...

Q: Vapor pressure of water is 31.8 torr at 30*C, how many grams of AlCl3 is needed to dissolve in 100 g...

A: The number of moles of Aluminum chloride and mole fraction of water is calculated as,

Q: If He (g) has an average kinetic energy of 8710 J/mol under certain conditions, what is the root mea...

A: The root mean square speed of O2 (g) molecules is calculated in step two.

Q: Of the following, check the one(s) whose aqueous solutions may act as a buffer. NH4C2H3O2 HNO3 with ...

A: Buffer solution is defined as a solution that oppose changes in pH while adding little amount of eit...

Q: A low dose aspirin tablet contains 82 mg of aspirin how many tablets can obtain from 50.g  of aspiri...

A: Given that a tablet contains 82 m g of aspirin. The mass has to be converted into grams.

Q: Predict the approximate molecular geometry around each carbon atom of acetonitrile: H3C C N: right C...

A: The molecular geometry of carbon atom in CH3 (left C atom):In CH3, carbon atom is bonded to three hy...

Q: One tenth of a kg of an aqueous solution of HCl is poured into 0.2 kg of an aqueous solution of NaOH...

A: The mass of HCl and water are calculated as,

Q: [Unsymmetrical ethers can be made via williamson ether synthesis, in which an alkoxide ino reacts wi...

A: Williamson ether synthesis is an ether synthesis used to convert an alcohol and an alkyl halide to a...

Q: What volumes (in mL) of 1.0 M HC2H3O2 and 0.70 M NAOH must be used to prepare 50.0 mL of a buffer wi...

A: The total volume of the solution is 50.0 mL. Consider the volume of acetic acid is x ml. Thus, the v...

Q: From memory, write the estimated pK, values for the protons shown. 2. н Он н н H2N ОН

A: pKa is introduced as an index to express the acidity of weak acids.  pKa value of acid is inversely ...

Q: What is the molar concentration of a 4% solution of borax? (sodium tetraborate decahydrate, Na2B4O7·...

A: The molar concentration of a 4% solution of borax is to be calculated. (sodium tetraborate decahydra...

Q: Activities Chromium Web Browser - Jan 23 9:03 AM O Mail - Dishita Uppal - Out W Answers That Cannot ...

A: (a)A represents the solid phase, B represents the liquid phase and C represents the gaseous phase.

Q: How many kJ of energy is produced* during the formation of 70.8 g of Fe, according to the reaction b...

A: Given data:

Q: What is the λ (in m) of an electromagnetic wave that has a frequency of 3.64 x 107 Hz?  Enter a nume...

A: Frequency, wave length and velocity of light can be related as follows,

Q: TABLE 12.5 Vapor Pressure of Water at Various Temperatures Temperature, Pressure, Temperature, Press...

A: Boiling point of water can be determined by Clausius-Clapeyron equation,

Q: a suspension for infants contains 80mg/0.80mL suspension. The recommended is 15mg/kg body weight. Ho...

A: 1 lb = 0.45 kgHence weight of infant in kg = 14 x 0.45 kg = 6.3 kg.Since the recommended dose is 15 ...

Q: Record the number of signifcant figures in each one of the following numbers. e. 2.670 x 10^3

A: Given,

Q: or dodecane (C12H26)? 3. Which hydrocarbon would be more Explain your reasoning. viscous, heptane (C...

A: Viscosity depends on the strength of the intermolecular forces present in the molecules of the compo...

Q: 1: What is the molar concentration of a 4% solution of borax? (sodium tetraborate decahydrate, Na2B4...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: How many grams of sucrose (C12H22O11) must be added to 603 g of water to give a solution with a vapo...

A: Given dataAmount of water in which Sucrose added= 603 gVapor pressure of the solution = 0.999 mmHgVa...

Q: select whether the mechanism involves a functional group conversion or a carbon skeleton modificatio...

A: Whether the given mechanism involves a functional group conversion or a carbon skeleton modification...

Q: Predict the product obtained when 1-pentyne reacts with two equivalents of HBr

A: When HX is added to terminal alkynes, addition occurs according to Markovnikov’s rule in which halid...

Q: Prepare a 1:200 dilution of the 20 mM Coomassie solution to measure the max wavelength—you need 2 ml...

A: Molarity is defined as the moles of solute present per liter of solution.Its units are mol/L (symbol...

Q: Suppose the rate of evaporation in a hot, dry region is about 2m per year, and the seawater there ha...

A: Given,Rate of evaporation = 2 m per yearSalinity of seawater = 35 pptYield of NaCl = 90 %Area of sol...

Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics...

A: Given data,ΔHcomb for dimethyl phthalate is –4685 kJ/molThe mass of the dimethyl phthalate is 1.10 g...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.