PPM

Q: What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting solution freezes to -...

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Q: Shown in the image is a diagram for the voltaic cell with the overall cell reaction being Al + Pb2+ ...

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Q: 12. In which of the following does sulfur have the highest oxidation state? A) SO: B) Ss C) H:SO4 D)...

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Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 77.78 g/mol and ...

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Q: Above 882 oC, titanium has a BCC crystal structure, with a = 0.332 nm. Below this temperature, titan...

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Q: The reaction SO2(g) + 1/2 O2(g) ↔ SO3(g) has Kp equal to 7.15 at 627°C. What is the value of ...

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Q: Which of the following is not one of covalent bonds that indicate the presence of H-bond capabilitie...

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Q: Write the overall balanced equation for the transformation of bromobenzene into benzoic acid through...

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Q: The ideal gas law would work for which if the following? a. A fluid with Z = 0.7 b. Hydrogen...

A: An ideal gas follow the ideal gas law, which is given by PV=nRT, where P, V, and n are the pressure,...

Q: Q3. A sample consisting of mono atomic ideal gas at I atm and 25C' expand adiabatically and reversib...

A: First law of thermodynamics says that internal energy change is equal to the sum of heat energy chan...

Q: Br2 FeBr3 (ü) OCH3 HNO, H2SO4 NO2 (i) I AICla il. H2O OCH3 (10 marks)

A: Since you have posted multiple subpart questions, the answer for first subpart question is given bel...

Q: Which of the following elements has its name derived from its property of being slightly magnetic?* ...

A: Isotopes are the different forms of an element.

Q: Q2. A. Compound Which is composed of 57.14% C, 6.16% H, 9.52% N, 27.18% O by mass and has a molar ma...

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Q: 2. Substances A,B,C,D, and E are mixed together. Substances B and E form into a separate immiscible ...

A: Given that, substances A,B,C,D, and E are mixed together. Substances B and E form into a separate im...

Q: Which of the following is TRUE about the factors affecting solubility? Select the correct response O...

A: Since you have posted multiple questions, we will answer the first one for you. Kindly post the othe...

Q: Which molecules are more likely in the course of a collision to reach the transition state and overc...

A: The solution of the question is given below:

Q: a. What is the over-all order with respect to SOo and 0,? b. Write the rate law equation for this re...

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Q: M20 and Nm2O are two compound, where M is a metal and Nm is a nonmetal. The Nm-O bond has an electro...

A: Given,  Options are :

Q: What does NOT change when a solution is diluted by the addition of solvent? Select the correct respo...

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Q: Analysis of a sample showed that it contained 68.3% lead, 10.6% sulfur, and 21.1% oxygen. What is th...

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Q: QUESTION 8 Which of the following spectroscopic measurements is not consistent with cyclohexanecarba...

A: Mass spectra and decarboxylation:   As per our guideline we have to answer first question only.

Q: The oxidation of ammonia into nitric oxide is an exothermic process. 4NH,(g) + 50(g) = 4NO(g) + 6H¸O...

A: 4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(g) ∆Hrxn = -904.4 KJ  

Q: Mark and John, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Given: Mass of KHP = 0.540 g Molecular weight of KHP = 204.22 g/mol Purity of KHP = 99.4% Volume of ...

Q: A college chemistry student is solving this problem: "Determine the initial volume, in m³, of a gas ...

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Q: Biomolecular Signaling Hydrogen sulfide and nitrogen monoxide can act as signaling agents in living ...

A: (a)  Rate of reaction = change in conc of species / time taken For avg. conc.,lets take initial and ...

Q: Be sure to answer all parts. Calculate the pH during the titration of 40.00 mL of 0.1000 M HCI with ...

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Q: A necessary step in the manufacture of sulfuric acid is the formation of sulfur trioxide, SO3, from ...

A: Equilibrium constant of an equilibrium reaction is given by aA + bB ↔cC +dDKeq = [C]c[D]d[A]a[B]b  

Q: 2. Identify ( molecule/s of_ and compute the mass of the following compounds: a) 12N¿O; b) 8CH4 c) 7...

A: a) N2O = Nitrous oxide molar mass = 44.013 g/mol b)  CH4 = methane molar mass = 16.04 g/mol c) P2O5 ...

Q: H+H-He+ 3

A: For nuclear reaction , total mass no. and total proton no. remain constant . Detail description is g...

Q: Q2. A. Compound Which is composed of 57.14% C, 6.16% H, 9.52 % N, 27.18% O by mass and has a molar m...

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Q: In the table, rank each substance by its boiling point (1 being the lowest, 4 being the highest) and...

A: Given to us vapour pressure Vs temperature graph.  Boiling point is the temperature at which vapour ...

Q: Calcium carbonate (CaCO3) decomposes upon heating to form calcium oxide (CaO) and carbon dioxide. A ...

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Q: Why would boiling water is necessary to be used in titration? What happened to the concentration if ...

A: The boiling point of a liquid is the temperature at which the vapor pressure of the liquid becomes e...

Q: calculate the number of moles of 85.3 g chromium

A: Given ,mass of chromium is 85.3g We have to calculate number of moles of chromium. 

Q: Balance the ff skeleton reactions and identify the oxidizing and reducing agents: a) O2(g) + NO(g) +...

A: This question is based on balancing of redox reaction. Process in which gain of electron takes place...

Q: Mark and John, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Titration analysis [Here KOH is the standardized titrant that has been first standardized using KHP]

Q: The Earth's atmosphere is made up of 78% Nitrogen and 21% Oxygen. The greater amount of Nitrogen tha...

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Q: The group 17 elements cannot be found free in nature because they are reactive. they are in gaseous ...

A: 1. Option A  2. Option A  3. Option A    

Q: The following are some normal modes of vibration for several molecules. In each case: • Determine th...

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Q: Which of the following statement/s is/are correct? 1. 3.00 N H2SO4 is equivalent to 6.00 M H2SO4. II...

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Q: B. What mass of CaCL: is needed to react with sufficient silver nitrate to make 15 g of AgCl ? (M.wt...

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Q: Calculate the pH of a 0.40 M CH3COOna solution. Kb for CH3COO- = 5.6*10^-10. (Show the dissociation ...

A: First calculate the OH- ions concentration in the solution, and then pOH and then the pH of the solu...

Q: Drinking of too much alcohol cause liver cirrhosis because ethanol is converted to toxic Acetone Eth...

A: Drinking of too much alcohol cause liver cirrhosis because ethanol is oxidized into the liver and co...

Q: Calculate the heat capacity of calorimeter in the reaction of 50ml 3M HCl and 50ml 3M NaOH Given: ...

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Q: Assuming a concentration distribution ratio of 20, make calculations to show which is more effective...

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Q: 3. 24Na is produced through the reaction 26Mg(d,a)4Na. A 0.2 mm thick magnesium foil is irradiated f...

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Q: which is dehydrated fastest and which slowest und

A: R-OH +H+>>>>R+  +H2O    hence dehydration of alchohal is prapotional to stability of car...