Describes the differences and similarities between solids, liquids and gases on a molecular level for neon, argon, oxygen and water.

Q: heat flows out of the bath and into the flask. -1 ·K Calculate the new temperature of the water bath...

A: Mass = 4.60 kg

Q: ACT 3 Colligative Properties of Nonelectrolyte Solutions Review Questions 12.39 What are colligative...

A: Solution is made up of two components: solute and solvent. Component which is present in major amoun...

Q: Enter your answer in the provided bex. Calculate the molar mass of a compound if 0.382 mole of it ha...

A: This question is related to stoichiometry which determines the quantitative relationship between rea...

Q: A sample of gas has an initial volume of 14.8 LL at a pressure of 1.13 atm If the sample is compres...

A: given :-  initial pressure (P1) = 1.13 atm  initial volume (V1) = 14.8 L  final volume (V2) = 10.9 L...

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound conta...

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Q: Be sure to answer all parts.   Draw the products of the reaction of cyclopentanone with ethylidenetr...

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Q: taborane BgHg(s) burns vigorously in 02 to give B2031s) and H20(). Calculate AHxn for the combustion...

A: 2B5H9 (s) + 12O2(g) -----> 5B2O3(s) + 9H2O( l)  

Q: An 93.1 mL sample of "wet" O2 (g) is collected overwater at 21.4oC and a barometric pressure of 755 ...

A: Here we have to use Daltons law of partial pressure. And to calculate the volume percent we need to ...

Q: Solution A has pH of 3.20, solution B pH of 12.50, solution C a pH of 7.00, and solution D a pH of 4...

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Q: Enter your answer in the provided box. When coal is burned, the sulfur present in coal is converted ...

A: Molar mass of S = 32 g/mol Moles of S = mass / molar mass = 2950g/(32g/mol) = 92.1875 mol The molar ...

Q: Select the single best answer. Which of the following has more atoms: 2.49 g of hydrogen atoms or 18...

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Q: How many moles of cobalt (Co) atoms are there in 2.00 x 10 (2.00 billion) Co atoms? x 10. mol Enter ...

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Q: A chemist determines by measurements that 0.035 moles of iodine solid participate in a chemical reac...

A: Given moles = 0.035 mol

Q: Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H20(1). Calculate AHrxn for the combu...

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Q: Describe how this "dried product" is often different from a crystallized product. (Describe the two ...

A: Answer: Crystallization is the process of converting a liquid substance into its solid form.

Q: A 13.2010g sample of hydrated zinc sulfate, ZnSO4 • xH2O), was strongly heated until no further chan...

A: Given that,  Mass of hydrated zinc sulfate, ZnSO4 • xH2O = 13.2010 g  The final mass of solid produc...

Q: What are the different types of hybridization?

A: Given question is : What are the different types of hybridization = ?

Q: At a certain temperature, the equilibrium constant K for the following reaction is 2.25 x 10': H,(g)...

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Q: Calculate the H3O+ and OH- for a solution with each of the following pH values: a. 4.5 b. 6.9 c. 8.1...

A: Relationship between pH and concentration of hydrogen ion and hydroxyl ions Note: [H3O+] = [H+] Form...

Q: What is the pOH of a solution that has a pH of 9.9?

A: Here we have pH = 9.9 We have to find pOH .

Q: Given the thermochemical equation 2502(g) + O2(9) - 2503(9), AH'rxn= -198 kJimol, how much heat is e...

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Q: What is the difference of using toluene, hexane, and dichloromethane as solvents in SN2 reactions? ...

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Q: How would the calculated molar concentration of the analyte be affected if the burette is rinsed wit...

A: Before starting any titration it is very important to rinsed the burette with the corresponding solu...

Q: Species AG (kJ/mol) Mg(s) 02(g) MgO(s)-569.6 SO2(g) -300.57 SO3(g) -370.53 CH2(g) 209.2 CO2(g) -394....

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Q: When we report the concentration of a solution we are using the moles of the entire compound. For ex...

A: Concentration of solutions:

Q: 8- Calculate the molar concentrations of the solute species in an aqueous solution that contains 285...

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Q: Daniel '18) Will a precipitate form if 5.0 g of AgBr are added to 50.0 mL of 0.60 M HCI? r110) 4 bee...

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Q: A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and ...

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Q: Select the single best answer. Which of the following has more atoms: 3.13 g of hydrogen atoms or 17...

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Q: If you calculated the molar mass of your unknown liquid to be 70.1 g/mol, which of the following do ...

A: Given-> Calculated molar mass of unknown liquid =70.1 gm/mole.    

Q: A 30.00-mL sample of 0.125 M HCOOH is being titrated with 0.175 M NaOH. What is the pH after 23.0 mL...

A: pH is equal to negative logarithm of hydrogen ions

Q: It is the process wherein light elements such as Helium and Hydrogen form. A. Big bang nucleosynthe...

A: The lightest elements  such as hydrogen, helium, deuterium, lithium were produced in the Big Bang nu...

Q: Enter your answer in the provided box. The reaction between nitric oxide (NO) and oxygen to form nit...

A: The given reaction is  2NO (g) + O2 (g) - - > 2NO2 Number of moles of NO2 produced = mass/molar m...

Q: QUESTION 1 During an experiment, a student mixed 14.5 mL of a 0.500 M sodium fluoride solution with ...

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Q: You are given a 50 ml solution of NADH having an A340nm Of 0.31. What is the concentration of this s...

A: Absorbance =ε c t ε = Molar absorption coefficient (mol-1L cm-1) c = Concentration (mol/L)t = Thickn...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: SO4 -two content in 7689mL of a water sample was precipitated as Na2SO4. The precipitated was filter...

A: The mass of the empty crucible is = 27.0234 g The mass of the crucible plus Na2SO4 is = 27.7708 g Th...

Q: Activity 2 HEATING CURVE OF ETHANOL E BOILING F GAS AV LIQUID B MELTINGC -115-- SOLID TIME T'E'N°A Q...

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Q: 5. Predict the major product of the following reaction ТСРВА NaHCOз

A: Given: structure of reactant. 

Q: Formic acid, from the Latin formica, is the acid present in ants sting. What is the concentration of...

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Q: A 30.00-mL sample of 0.125 M HCOOH is being titrated with 0.175 M NaOH. What is the pH after 11.2 mL...

A:

Q: e standard entropy change for the following reaction at 25° S(rhombic) + O2(g) SO2(g)

A: From the given data,  □Srxn = Total entropy of products- Total entropy of reactants  □Srxn =( 248.5 ...

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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Q: Calculate the molar mass of a compound if 0.348 mole of it has a mass of 200.0 g. g'mol

A:

Q: Priestley prepared oxygen by heating mercury(II) oxide. From the data given below estimate the tempe...

A: Goven-> ∆H°=90.83 KJ =90830 J  S°(Hg) = 76.02 J/mole.K S°(HgO) = 70.29J/mole .K S°(O2) = 205.0 J/...

Q: Ammonium perchlorate (NH,CIo,) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A: Mass of NH4ClO3 = 4.0 g MW of NH4ClO3 = 117.5 g/mol

Q: Calculate the standard entropy change for the following reaction at 25°C. S(rhombic) + O2(g) → SO;(g...

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Q: Which of the following has more atoms: 3.55 g ef lithium atoms or 19.1 g of nickel atoms?

A: Mass of lithium = 3.58 g Mass of nickel = 19.1 g

Q: Give four major contributions of Jabir ibn Hayyan to the study of the central science

A: Jabir (known as Geber in western history) is generally known for his commitments to science. He unde...

Q: Decide whether each molecule or polyatomic ion s polar or nonpolar. do f the molecule or polyatomic ...

A: Polarity of given compounds: