Paraformaldehyde is a polymer of    A. acetone   B. paraform    C. formaldehyde    D. acetaldehyde

Q: A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g)...

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Q: How much heat energy is required to convert 76.9 g of solid ethanol at –114.5 °C to gasesous ethanol...

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Q: A scientist measures the standard enthalpy change for the following reaction to be -52.7 k) : C,H4(9...

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Q: Alcoholic beverages are solutions. Typically, a beer contains about 4.50% (v/v) of ethanol fermented...

A: A numerical problem based on concentration terms that is to be accomplished.

Q: Suppose a 500. mL flask is filled with 0.70 mol of H, and 1.9 mol of I,. The following reaction beco...

A:           Number of moles of H2 = 0.7 mol           Number of moles of I2 = 1.9 mol    Volume of rea...

Q: The rate constant for a first-order reaction is 0.77 s^-1. What is the half-life of this reaction if...

A: The following  equation can be used to calculate the half-life of a first-order reaction. t12=ln 2Kt...

Q: thermometer. A 55.1 g sample of polystyrene is put into a calorimeter (see sketch at right) that con...

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Q: Which condition favors the forward direction of a reversible reaction? A. Q = K B. Q K D. Q = 0

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Q: Some N, gas is mixed with some O, gas, and the sketch below shows a representative sample of the mix...

A: Partial pressure of gas is given by  p=xP where,p=partial pressure, x=mole fraction and P=total pres...

Q: Use the reactions below to calculate the value of Kp at 1200 K for the reaction 2 H2(g) + O2(g) ⇌ 2 ...

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Q: What is the volume (liters) of 23.5 g of I2 at STP?

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Q: Reaction (AS') Positive or Negative? a. CaO(s) + CO2(g) → CaCO3(g) 1. b. 20(s) + O2(9) - 2CO2(9) 2. ...

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Q: Shown below is the major resonance structure for a molecule. Draw the second best resonance structur...

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Q: Classify each of these chemical compounds: type of compound (check all that apply) compound molecula...

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Q: What is the ionic strength of the solution and activity coefficient for both ions in KNO3 if the sol...

A: The ionic strength can be calculated as follows: I=12ΣCiZi2 i→particular ionC→cocentration of ionZ→c...

Q: What is the molarity of a solution that contains 75.0 g of KNO3dissolved in 0.350 L of         solut...

A: Given : mass of KNO3 = 75.0 g              volume of solution = 0.350 L  To calculate :- molarity of...

Q: Graph Analysis Individual Assessment Provide clear and concise explanation for each of the question ...

A: BC (2) and DE (4) represent phase transition of the system.

Q: An automobile engine provides 572 Joules of work to push the pistons. In this process the internal e...

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Q: A sample of Nitrogen gas occupies a volume of 375.5 mL at 77.8°C. What volume will it occupy at 26°C...

A: Volume occupied by Nitrogen gas at 77.8°C (T1) = 375.5ml = V1 Volume occupied by Nitrogen gas at 26°...

Q: Weight of Coin 1 (g) Weight of Coin 2 (g) Weight of Coin 3 (g) Weight of Coin 4 (g) Weight of Coin 5...

A: The mean is the average of all the values in a dataset. Standard deviation is a statistic which meas...

Q: 1. How many grams of KBr are present in 5.0x10 mL of a 5.80 M solution? [molar mass of K =39 g, mola...

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Q: Please identify the asymmetric carborn in the following molecules and mark them with an X. There may...

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Q: If we locate an electron to within 20 pm, then what is the uncertainty in its speed?

A: As per Heisenberg's uncertainty principle, it is not possible to estimate the exact position or velo...

Q: ilin the feouna Chart whn the lonyeature as the udume Chrges Nepl:Find-the quaient if ine hume divid...

A: We would use the given statement of Charles law to calculate temperatures .

Q: Problem: What is the percent yield of a reaction that produces 12.5 g of the Freon (CF2CI2) from 32....

A: Recall the reaction, CCl4 + 2HF ---> CF2Cl2 + 2HCl  Given masses, mass of CF2Cl2=12.5 g = Actual ...

Q: 40 Boyle's, law 35 30 25 15 02 0-4 Dete 8 What is the sShape of the deta 2inear Yes.

A: In this question we will define Boyle's law and plot the respective graph. We will tell the shape of...

Q: Which of the following changes will decrease the rate of collisions between gas molecules R and Q in...

A: Collision theory is used to predict the rates of chemical reactions. For a reaction to occur, there ...

Q: Using the specific heat capacities of CO2 and air determine which sample (air or CO2) shows the grea...

A: Specific heat capacity is the amount of heat absorbed by 1 g of substance to raise its temperature b...

Q: Part A To 10Lot a 032 M soution of HCIO, is added 0.20 mol of NaCIO. Caloulate the (HCIO,) at equibr...

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Q: Use the systematic treatment to get the concentrations of all the species in a solution of: a.) 0.35...

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Q: The following syntheses have flaws in them. What is wrong with each? (a) .CH3 1. Cl2, FeCl3 .CO2H 2....

A: 1) Methyl group is a moderate electron donating group and it directs the incoming electrophile ortho...

Q: A major component of gasoline is octane (CH18). When octane is burned in air, it chemically reacts w...

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Q: Describe the classification of polymers on the basis of their molecular structure. Give an example o...

A: A polymer can be defined as a substance  composed of very large molecules known as macromolecules wh...

Q: Which reaction below will produce significant amounts of product? The acids in decreasing strength a...

A: Given that, the acids in decreasing strength are H2SO4>HNO3>H3PO4>HCN. We have to tell whic...

Q: b) Pyrrole and indole both react with the reagents shown below to give compounds E and F respectivel...

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Q: Using activities, what is the molar solubility of Zn(OH)2 in 0.0100 M KCl? Thermodynamic Ksp = 3.0 x...

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Q: Section A the solid is warming but also not melting. Section B is Melting. Section C the Liquid is...

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Q: What is the molecular formula of each compound? a. empirical formula CH (MM = 78.11 g/mol) b. empiri...

A: we are required to find the molecular formula for each of the given empirical formula

Q: Determine how much of each acid and conjugate base are needed to add to a final volume of 500ml of D...

A: The preparation of buffer is governed by Henderson Hasselbach equation. pH=pKa + log[conjugate base]...

Q: Differentiate zero, first and second-order reaction

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Q: Based on ionic strength, if ammonium nitrate is added to the solution of silver chloride and water, ...

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Q: Determine the number of moles of the compound and determine the number of moles of each type of atom...

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions a...

Q: hat is the molality of a solution labeled "8.6% ucose (C_H „0) by weight?" *12 Tote: If the question...

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Q: How much energy is required to raise the temperature of 11.1 grams of solid iodine from 24.8 °C to 3...

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Q: As the charge of the metal ion increases, what happens to the value of the activity coefficient? a...

A: From the extended Debye-Huckel equation, activity coefficient is related with the charge of ion as -...

Q: Acetylene (C,H,) gas and oxygen gas react to form carbon dioxide (CO,) gas and water (H,O) vapor. Su...

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Q: Lewis structure name of highlighted group H :0 С — н H :0 — Н H :0: H -C- N - H н н - -

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Q: Calculate the pH of an 0.025 M solution of HF. HF is a weak acid Ka = 0.00071

A: The PH of weak acids can be calculated as follows

Q: Ammonia (NH3) chemically reacts with oxygen gas (02) to produce nitric oxide (NO) and water (H,0). W...

A: The balanced chemical equation for the reaction of Ammonia ( NH3 ) and Oxygen gas ( O2 ) is,     4 N...