When water vapour condenses at 100oC and 1.00 atm of pressure, is the change in entropy of the universe negative, zero, or positive?

Q: If you are given the molar amount of a compound, how do you figure out the concentration?  For examp...

A: Given : solution of HCl with molarity or molar amount of HCl = 6.0 M  

Q: You mix a 200.0-mL sample of a solution that is 1.5 * 10-3 M in Cu(NO3)2 with a 250.0-mL sample of a...

A: Given: Volume of Cu(NO3)2  = 200.0 mL Molarity of Cu(NO3)2 = 1.5 x 10-3 M Volume of NH3           = ...

Q: In the gas phase at 500.°C, cyclopropane reacts to form propene in a first-order reaction. The figur...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: State which of the following species are amphiprotic and write chemical equations illustrating the a...

A: Amphiprotic species: Amphiprotic species are those species that can donate as well as can take proto...

Q: Examine the statement “No two elements have the same line spectrum.” Explain why this can be used li...

A: The lines observed in a line spectrum correspond to specific wavelengths emitted by atoms when they ...

Q: a. These two species can undergo a Lewis acid-base reaction. Click on the site of greatest Lewis bas...

A: Lewis bases are those substances which can donate an electron pair to the vacant orbitals of Lewis a...

Q: what is the conclusion from experiment of make a battery with oxidation-reduction half-reactions

A: A battery can be made from the voltaic cell. The voltaic cell can be prepared by: 1. Half cells of o...

Q: (3) A flask contains a sample of mercury. The system is stored at room temperature of 25.00 °C. At w...

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Q: 15.0  mL of 0.50 M HCl is added to a 100.-mL sample of 0.314  M HNO 2 ( K a for HNO 2 = 4.0  × 10 –4...

A:

Q: 1. Homogeneous mixture(s) A. orange juice B. oil + vinegar C. household white vinegar D. salt + pepp...

A: Homogeneous mixtures are those mixtures that represent only one phase.  We cannot separate the compo...

Q: 4. At what pressure will all the liquid be removed in a mixture of composition XlA = 0.84 ? please l...

A: Let us consider the y-axis of the graph represents the partial vapor pressure of A if it will repres...

Q: For the attachment of a substrate to the active site of an enzyme: k1 S+E→ SE k-1 The equilibrium co...

A: A unitless number relating both direction rates (forward and backward) of any equilibrium reaction i...

Q: electrochemistry. Will it be possible to do a reliable separation of methanol (boiling point 64.7o C...

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Q: Calculate the moles of Na25203 using the following data: • Sample volume (mL) = 200.0 • Buret Readin...

A: Molarity (M) or molar concentration of a solution is defined as the number of moles of solute dissol...

Q: If it requires 17.86 mL of a 0.278 M NaOH solution to titrate a 25.00 mL HCl solution, what is the c...

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Q: Please write the conversion factor with the labels. I have a hard time to get a wrong answer on the ...

A:

Q: Please answer quickly

A: 21.59

Q: An automobile tire has a maximum rating of 38.0 psi (gauge pressure). The tire is inflated (while co...

A: Initial pressure = P1 = 36.0 + 14.7 = 50.7 psi Final pressure = P2 Initial volume = V1 = 11.8 L Fina...

Q: Suppose that a molecular orbital of a heteronuclear diatomic molecule is built from the orbital basi...

A: The molecular orbital of a heteronuclear diatomic molecule is made from orbital basis ψA, ψB and ψC ...

Q: In benzene, dimerization occurs with benzene due to hydrogen bonding. In 110 gofbenzene, 1.70 gof ac...

A: Colligative property is a property that depends on the number of molecules present in the solution. ...

Q: 45.0 mL of 1.023 M HCOOH is titrated with 0.740 M LiOH. What is the pH after 30.0 mL of LiOH has bee...

A: pH is used to determine the concentration of hydronium ion.

Q: Consider a pale blue solution of CuSO4.   Include phases in the balanced chemical equations. Wh...

A: When ammonia is added to the above mixture then the solution formed deep navy blue colored complex a...

Q: A buffer solution is made that is 0.413 M in HCN  and 0.413 M in KCN. If Ka for HCN  is 4.00 x 10-10...

A: a) To calculate the pH of given buffer solution. Given: [HCN] =0.413 M [KCN] = 0.413 M Ka for HCN  i...

Q: After filtering your final product, you find that your product is still wet, but you proceed to take...

A: Melting point is the temperature at which there exists equilibrium between solid and liquid phase of...

Q: Ibuprofen, C13H18O2, is a covalent compound and the active ingredient in several popular nonprescrip...

A:

Q: Which of the following can donate a proton, H+ , to water?   Group of answer choices A.) AgNO3 ...

A: To donate a proton i.e H+ ion to water, there are 2 requirements. 1) The compound should be having a...

Q: Complete and balance the following half-reaction in basic solution CIO3 (aq) → CIO2(g)

A: Here, the reaction will be: ClO3- (aq) -------------> ClO2(g)

Q: An organic compound X was found to contain only C, H, and Cl.  The following experiments were carrie...

A: principal of atomic conservation state that in any reaction the number of atoms remain conserved l

Q: Which of the following molecules have net molecular dipole moments?   CS2 SeS2 CCl2F2 PCl5 ClNO

A: Which of the following molecules have net molecular dipole moments it is to be determined. Given mol...

Q: Which of the following pairs of aqueous solutions will react to produce a precipitate (an insoluble ...

A: B) The double displacement reaction taking place between NaOH and HCl is => NaOH + HCl -----> ...

Q: What volume (in L) of 0.300 M LiI will react with 0.150 L of a 0.175 M Pb(NO3)2 solution according t...

A: The reaction given is 2LiI(aq)   +     Pb(NO3)2(aq)    ⟶   PbI2(s)    +   2LiNO3(aq) Given : concent...

Q: Br Propose a mechanism for the reaction shown here, which takes place under conditions that favor an...

A: Given: To propose a mechanism for the given transformation which takes place under conditions that f...

Q: Consider a galvanic cell based in the reaction Fe2+ + Cr2O72– → Fe3+ + Cr3+ in acidic solution. Cal...

A:

Q: Please write the conversion factor with the labels. I have a hard time to get a wrong answer on the ...

A: The reaction considered in the question is,

Q: Ascorbic acid is likely stored somewhere in your home today. It is commonly known as Vitamin C. Its ...

A: pOH is used to determine the concentration of hydroxide ion.  

Q: Acetic acid and its conjugate base acetate can form an acid-base buffer.  The pKa of acetic acid is ...

A: Given: Concentration of HNO3 = 10.0 M Concentration of acetic acid = 0.0100 M Concentration of sodiu...

Q: Explain why volume increases as temperature increases. Under what conditions does a real gas behave ...

A: In gases, as their temperature is increased, the energy of the gas molecules is increased and can mo...

Q: Normally, the pH of the human body is fixed in a very narrow range between 7.35 and 7.45. A patient ...

A: Bicarbonate buffering system is the main buffer system controls pH of blood.  

Q: OSA moles ... A major component of gasoline is octane (C,H8): When liquid octane is burned in air it...

A: The species carbon dioxide and the species water will be generated by the combustion of the hydrocar...

Q: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a sam...

A: PFA

Q: Need j

A: In the cell electrical energy is converted to chemical energy. In the given problem cell is electrol...

Q: Chemistry Question

A: a) Since NaOH is a strong base which dissociates completely as per the reaction, NaOH ----> Na+ +...

Q: Help me, please. Please write the labels with number each conversion factor. Look at the question. Y...

A: For the balanced chemical equation: In this reaction, 2 moles of nitric acid reacts with 1 mole of ...

Q: You have the six pieces of metal listed below, plus a beaker of water containing 300 g of water. The...

A: The standard enthalpy of formation is the enthalpy change for the formation of 1 mol of the compound...

Q: Write the synthesis of the target compounds by starting from each benzene given in the following opt...

A: (“Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for ...

Q: What is the major product of the following reaction?

A: When pyrrole react with the Grignards reagent it will give alkane as a major product and the grignar...

Q: A solution of 100.0 mL of 0.200 M potassium hydroxide is mixed with a solution of 200.0 mL of 0.150 ...

A:

Q: Uranium can be isolated from its ores by dissolving it as UO2(NO3)2, then separating it as solid UO2...

A:

Q: Identify the compounds below as a Brønsted-Lowry acid or Lewis acid by clicking and dragging it into...

A: A Bronsted-Lowry acid is a species that donates a proton in an aqueous solution. A Lewis acid is a s...

Q: Carbon may exist as diamond, graphite, and other allotropes. The standard Gibbs energy of formation ...

A: Given: Carbon has different forms of allotropes such as diamond and graphite. The standard Gibbs ene...