Chemistry Question

Q: Which of the following is the least massive?  Group of answer choices An electron A proton An a...

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Q: Hexane combusts according to the following balanced equation: 2 CoH14(e) + 19 O2(g) 12 CO2(g) + 14 H...

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Q: 1. The following reaction can be classified as __________.   2 O 3( g)    3 O 2( g) + heat 2. What i...

A: 1). When heat is evolved in the reaction the reaction is said to exothermic reaction. 2 O 3( g)----...

Q: 5. The following reaction was carried out in the lab. 1.5 ml of the starting ester (M.W=136 g/mol, d...

A: Given that: volume of ester = 1.5 mL M.W of ester = 136 g/mol density of ester = 1.1 g/mL M.W of pr...

Q: The molecular weight of Carbon is 12.0 g/mole. How many moles of Carbon in 18 g of Carbon?

A: Given Molar mass = 12 g/mole Mass = 18 g

Q: Balance the following half reaction in acidic conditions. How many electrons are transferred in the ...

A: To balance reaction in acidic medium

Q: At 100 oC the equilibrium constant, Kc , for the reaction shown below is 2.16 x 10-10.  Calculate th...

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Q: Calculate the theoretical amount (mol) of product that can be formed by the reaction between 1.0 mL ...

A: Aniline on reaction with sodium nitrite yield an intermediate i.e. benzene diazonium salt which on r...

Q: Chemistry II ======== 2. Will the recorded temperature change for an exothermic reaction performed i...

A: A calorimeter is an isolated system that is used to measure the enthalpy changes when an acid and ba...

Q: Please solve all part

A:  Isomers are molecules with identical molecular formulas. They have same number of atoms of each ele...

Q: Consider the standard reduction potentials and redox couples used in a galvanic cell. Unbalanced Hal...

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Q: What is the ratio of the speeds of SF4 gas to helium (He) gas? a. Sulfur tetrafluoride gas is 0.037 ...

A: We beed ro find the ratio of the speeds of SF4 gas to helium gas. Molecular mass of SF4 = 108 grams ...

Q: AH° = 301.5 kJ/mol, AS° = 761.4 J/mol-K %3D %3D Calculate the boiling point temperature (in K) at st...

A: The melting point or boiling point of a substance is the measure of thermal energy. It is the energy...

Q: 7.study the reaction. N2 (g)+3H2 (g)⇌NH3 (g)+92 kJ What can be done to shift the equilibrium positio...

A: The equilibrium reaction given is, => N2 (g) + 3 H2 (g) ⇌ NH3 (g) + 92 KJ. Given : We want to shi...

Q: Which is being oxidized and which is the oxidizing agent?

A: Given Chemical Reaction ::  CH4 + 2 O2 ---> CO2 + 2 H2O 

Q: An automobile wheel contains air with a pressure of 3x105 Pa at 25°C. The sipop cover was removed an...

A: Given Initial Pressure = P1 = 3x105 Pa Initial Temperature = T1 = 25°C. = 298 K Final Pressure = P2 ...

Q: Calculate the energy absorbed when 2.0x10°g of dry ice (CO2) sublimate at the normal sublimation poi...

A: Energy can be derived from enthalpy by multiplying with mass,

Q: what is the mechanism using retrosynthesis with a benzene, the following molecule, and any other mol...

A: Given structure: The mechanism using retrosynthesis with a benzene Is as follows:

Q: Which of the following acids would have the strongest conjugate base? Acid Ka HIO3 1.7 x101 HCIO2 1....

A: Given : To find the strongest conjugate base from the given acids.  

Q: What is the potential of the cell below? Report your answer in volts to the nearest thousandth and i...

A: The redox reaction is the reaction in which oxidation and reduction take place simultaneously. The N...

Q: If 29.0 grams of MgCl2 were dissolved in 0.250 liters of water, what would be the molarity of this s...

A: Given Mass of MgCl2 = 29 g Volume of solution = 0.250 L Standard value  Molar mass of MgCl2 = 95.211...

Q: 5. The following reaction was carried out in the lab. 1.5 ml of the starting ester (M.W=136 g/mol, d...

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Q: Draw the oxidation products of the following compounds. Please solve a,b,c subparts

A: The most common oxidizing agent for alcohols is potassium dichromate(VI) acidified with dilute sulfu...

Q: Ocean water freezes around -2 degrees Celsius. At what temperature would you expect ocean water to b...

A: Given freezing point = -2°C

Q: Explain answer

A: The effect of a change in reaction conditions on chemical equilibrium are predicted by Le Chatelier’...

Q: How old is this Martian Rock that is found to be containing 12.5% of a radioactive parent nucleus? T...

A: On going from Martian Rock sample containing 100% of the Radioactive nucleus, to 25% of the Radioact...

Q: Can you plz help me

A: Entropy is defined as degree of randomness in a system.

Q: Please find the open chemical structure of the compound. Please indicate your comments on IR, 1H-NMR...

A: The analysis suggest the presence of hydroxyl and amine group attached on aromatic ring.

Q: 4.Study the reaction. N2 (g)+3H2 (g)⇌NH3 (g)+92 kJ In which direction does the equilibrium position ...

A: Using Le-Chatlier principle we can predict the direction of reaction.

Q: Chemistry Question

A: As the rule says we have to round off to the least no. of decimal places while adding or subtracting...

Q: Molecular formula CHCl3 Draw Lewis structure for CHCl3 What is the electron geometry ? What is the ...

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Q: Determine if this solution is acidic or basic and find the pH, [OH], and the [H'] if the РОН 39.38

A: Given   POH = 9.38   PH       = ?  [ H+]     = ? [ OH- ]  = ? 

Q: Barium fluoride (BaF2) has Ksp = 1.8 x 107. What is the maximum fluoride ion concentration possible,...

A: The maximum fluoride ion concentration can be calculated as follows 

Q: Consider 2 solutions, one that is 0.13M in KOH and one that is 0.36M in HF. If 250 mL of each of the...

A: Molarity of KOH = 0.13 M Volume of KOH = 250 mL  mmol of KOH = M × V     = 0.13 × 250 = 32.5 mmol Mo...

Q: You run a reaction of 2AB=A2+B2. You have 3 M AB. After 15 minutes you find your concentration of AB...

A: The reaction taking place is given as, => 2 AB --------> A2 + B2  Given : Initial concentratio...

Q: Below is the 'H NMR spectrum of phenol. Note the insert with the region from around 6.7 to ppm expan...

A: NMR spectroscopy is an analytical technique used to identify an organic molecule on the basis of the...

Q: Percent by Mass mass of solute_ × 100 mass of solution Percent by mass equals the mass of the solute...

A: Given : Mass of solute i.e DTN = 25 mg And mass of solution = 1000.0 mg  

Q: Calculate the pH of 40.0 mL of a .88 M Hl solution.

A: Given: Concentration of HI, [HI] = 0.88M To find, pH = ?     We know in aqueous solution, HI is stro...

Q: Does a reaction occur when aqueous solutions of iron(III) sulfate and cobalt(II) nitrate are combine...

A: When these solutions are mixed to react together, following Double displacement reaction occur : 

Q: Consider dissolving barium fluoride in water, as indicated in the reaction below. The thermodynamic ...

A: Standard Gibbs free energy change (∆G°) and equilibrium constant (K) are related by the equation ∆G°...

Q: Consider the following two-step mechanism for a generic reaction: A+B=C (slow) A+C=D (fast) Chose al...

A: Given     A  + B -----> C           ( slow )    A  +  C -----> D          ( Fast )  True state...

Q: A 100.0-g sample of water has an initial temperature of 25.0°C. The final temperature of the after h...

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Q: Which of the following statements is false?a. The proton and neutron are primarily responsible for t...

A: we have to select the false statement

Q: 1. Johanne Dobereiner noticed that when the elements in the atomic mass, the mass of the middle elem...

A: As you have posted a question with multiple parts, we will solve the first three subparts for you. T...

Q: What is the IUPAC name for CH 3 -CH 2 - CH 2-I   a. diiodopropane. b. propane diiodide. c. 1-iodop...

A: Given  Structure of Compound  = CH3 - CH2 - CH2 - I  IUPAC   Name   =? 

Q: Which of the following substances is best characterized as a polar molecule?  Group of answer choice...

A: The solution is given below - 

Q: For this question, use the following reaction and Kc value: 2NH3 (g) N2(g) + H2g) Kc = 3.4 x 10 At e...

A: In the given reaction, 2NH3 = N2 + H2 Kc=3.4 ×10

Q: What kind of acid can be consider the central metal atom and why? Is there any base around central m...

A: In coordination compound, there is a central metal atom and a ligand which are bonded together by co...

Q: The normal boiling point of this substance Temperature at critical point Temperature at triple point

A: The phase diagram given is,  

Q: 8.Study the reaction. A (aq)+B2 (g)⇌AB2 (g)+heatA (aq)+B2 (g)⇌AB2 (g)+heat What can be done to shift...

A: The effect of change of pressure, temperature, concentration on the equilibrium was studied by Le ch...