A biochemist carefully measures the molarity of calcium ion in 5.2 L of cell growth medium to be 88. µM. Unfortunately, a careless graduate student forgets to cover the container of growth medium and a substantial amount of the solvent evaporates. The volume of the cell growth medium falls to 0.67 L. Calculate the new molarity of calcium ion in the cell growth medium. Round each of your answers to 2 significant digits.

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: IsotopeMass (amu)Relative abundance116Sn112Sn

Q: Draw a resonance structure that places a pi bond in a different position. Include all lone pairs in…

A: Here we need to draw a resonance structure, where pi bond is in a different position.

Q: Calculate the pH of a 0.078 M sodium hydroxide (NaOH).

A: Concentration of sodium hydroxide(NaOH)=0.078MpH=?

Q: 4. Synthesize the following compound. You may use benzene, acetylene, ethanol and any inorganic…

A: First ethanol to ethyl bromide then start with benzene to form ethyl benzene which undergoes…

Q: -/1 Question 11 of 12 M 288 ***

A: Alkyl halide gives an elimination reaction by reacting with a strong base. E2 reaction involves a…

Q: w For the following organic reaction identify the mystery reactant R, its stoichiometric coefficient…

A: Given,The reaction:

Q: The solubility of strontium carbonate is 0.0011 g/100 mL at 20°C. Calculate the Ksp value for this…

A: We are given,Solubiity of strontium carbonate, SrCO3 =  0.0011 g/100 mLVolume =100 mLMass of SrCO3 =…

Q: In a solution containing NaCl with an initial concentration of 0.1M, calculate the activity…

A: The main aim of this question is to calculate the activity coefficient (γ) for Na+ when the ionic…

Q: 4. Propose a synthesis route for the following molecule. Use a diene and a dienophile as your…

A: Given is organic compound. To find out synthesis of this compound let's do retrosynthetic analysis…

Q: Expected number of signals (enter a numerical value):

A: Expected number of signals ?

Q: Determine the major product of the following reaction. You only need to draw one of the two possible…

A: Given is organic reaction. The given reactants are amine and ester respectively. Amine reacts with…

Q: Copper has two naturally occurring isotopes, Cu (isotopic mass 62.9296 amu) and 5 Cu (isotopic mass…

A:

Q: 5.00 J of heat is added to 10.00 g of gold, which is initially at 25°C. The heat capacity of gold is…

A: The heat added is .The mass of gold is 10.00 g.The intital temperature of gold is .The heat capacity…

Q: What is the direction, if applicable, of the net polarity for the following compound? O No net…

A: When two atoms having significant difference in electronegativity bond with each other, the more…

Q: Which of the following bonds is the shortest C-C single bond? OI Oll ||| O IV IV H

A: From given compound there is need to determine shortest bond length of C-C

Q: Which statement about this reaction is correct? HBr This reaction is regiospecific. This reaction is…

A: Given is organic reaction.This is hydrobromination reaction.

Q: Draw the most stable cations formed in the mass spectrometer by a cleavage of the following…

A: Alpha cleavage takes place such that the free radical formed is most stable, which also leads to the…

Q: 17.1 g of calcium chloride is dissolved in enough water to mate a 705. mL solution. What is the…

A: Given, mass of calcium chloride = 17.1 g We know, molar mass of calcium chloride(CaCl2) = 110.98…

Q: A student sets up and solves the following equation to solve a problem in solution stoichiometry.…

A: From the given equation, we can see that the unit on the right side of the equation is mL. So, we…

Q: It is known that 1mL = 1cm³. What is the mass of a cube of gold (density = 19.32 g/cm³) if the…

A: Length of cube or side of gold = 2.00 cmdensity of gold = 19.32 g/cm3mass =?

Q: 15. Calculate the mass of sodium sulfate (Na2SO4) for preparing a 500 ml solution with a molar…

A: Molarity of sodium sulfate, Na2SO4 solution = 0.15 mol/L Density of sodium sulfate, Na2SO4 solution…

Q: 1b) Which is the least stable structure of 1-isopropyl-4-methylcyclohexane? O a. O b. Qo O d. H. CH3…

A: In the chair form of cyclohexane there are two postions there areAxial postionEquitorial postion

Q: Draw a structural formula for one of the 5 constitutional isomers of the unbranched alkane C7H16 in…

A: Formula of alkane C7H16We need to draw the constitutional isomers of the unbranched alkane C7H16…

Q: over the volume ranges (A, B, C, and collect the distillate of the compoun 2. A student performed a…

A: Fractional distillation is a method used for separation of two or more miscible liquids of similar…

Q: pb2+ +2kcl = pbcl2 + 2k, when 28.5g kcl is added to a solution containing 25.7gpb2+, a pbcl2…

A: Given ,

Q: Which functional group, except alkane, is presence in the following IR spectrum? INFRARED SPECTRUM…

A: Given is IR spectrum.In IR spectrum each functional group has its own unique peaks.

Q: A signal just above 7 ppm that integrates to 2 hydrogens indicates a disubstituted cyclohexane a…

A: NMR spectroscopy is a very important tool for the determination of the structure of the organic…

Q: For each acid-base reaction below, draw the conjugate base and conjugate acids. (b) For each acid -…

A: Answer:Any chemical specie that loses H+ ion in its solution is called as Bronsted-Lowry acid and…

Q: 5. Determine the solubility (g/L) for Iron (II) hydroxide at 25.0°C. Ksp = 1.1 x 10 36 %3D

A:

Q: For the pair of compounds below, identify the more acidic compound without using a pK₂ table.…

A: The objective of the question is to identify the more acidic compound in the given pair of…

Q: What is incorrect about the following pictures? Br CI Br H₂C CH3 GCH3

A: The objective of the question is to determine the incorrect picture.

Q: About half of the CO₂ produced by human activities, mainly fossil fuel burning, remains in the…

A: According to the National Oceanic and Atmospheric Administration (NOAA), human activities release…

Q: 63. The following molecular equations each show an ionic compound dissolving in water. Show the…

A: Ionic equations represent the ionization process of a substance when it dissolves in water. In these…

Q: H₂O + H.C. CH3 CH3 H3C. H₂O* CH3 CH3

A: Answer:Intermediates are the short-lived species that forms during the reaction and gets consumed…

Q: 16- The technique used to determine the neutralizing capacity of antacid is: a) Filtration b) Direct…

A: a) FiltrationFiltration is the process used to separate the solid particles from the liquid by…

Q: You perform a reduction of N-cinnamylidene-m-nitroaniline (imine) with sodium borohydride. What type…

A: In a nucleophilic addition reaction, a nucleophile or electron-rich species is added to the electron…

Q: In a certain chemical reaction Compound A combines with Compound B to produce Compound C (and no…

A: Given : A reacts with B to produce C (no other products).According to law of conservation of mass,…

Q: Count the significant digits in each of these measurements: measurement 0.003700 J -1 6.4 X 10 mL…

A: The number of meaningful digits present in the scientific notation is known as significant digits.

Q: Barium carbonate is reacted with hydrochloric acid (HCl) to make barium chloride, as shown here.…

A: Concentration of HCl = 0.250 mol/LMass of BaCO3 = 1.00 kgMolar mass of BaCO3 = 197.34 g/mol