enthalpy

Q: Use the information in the pictures if needed and solve for the unknown D.  please type the answers...

A: The solution is tested for the presence of metal ions through a systematic procedure of qualitative ...

Q: Materials made by man using both organic and inorganic substances.

A: Natural materials are those which are obtained from nature. Organic materials are carbon-based and a...

Q: = molecule A %3D = molecule B %3D Using the above figure, answer the following questions: A) What is...

A: Limiting reagent is reagent which reacts completely during  a balanced chemical reaction. And reagen...

Q: Estefanla wants to make 17.63 pints of Kool-Ald for her upcoming event. Unfortunately, she can only ...

A: Given 1 pint = 0.473176 L We know 1L = 1000 mL   Hence 1 pint = 0.473176 L x 1000 mL/ L or, 1 pint =...

Q: How would the conformation look if a ring flip occured

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Q: irst Statement: Solids can be squashed or forced into a smaller space econd Statement: All solids ha...

A: Materials in a solid state keep their shape unless a force is applied to them. Solids can be cut, sq...

Q: What information do we need to perform a calculation of Gibbs Free Energy? * The temperature of the ...

A: We have to predict what needed to calculate the Gibbs free energy.  

Q: Predict the d orbital splitting of [Cr(H2O)6]2+complex. A) (t2g)2(eg)2 B) (t2g)4(eg)0 C) (t2g)3(e...

A: It is a octahedral complex . H2O is a weak field ligand. Atomic number of chromium is 24 . Configura...

Q: Which one of the following conversions is an example of reduction? a. Copper (II) oxide to copper (I...

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and t...

Q: A) theoretical yield for reaction B) theoretical mass for stilbene, bromine, acetic acid, and pyr...

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Q: predict the sign (+ or -) of the entropy change for the following reaction: I2(g) --> I2(s)

A: Given  I2(g)  →  I2 (s) Sign of Entropy Change ( ∆S ) = ?

Q: How many moles are in 130 gram of N?

A: Given :-  Mass of N = 130 g  Atomic weight of N = 14.01 g.mol-1  To calculate :-  Number of moles of...

Q: Active Raw Materials Actual Yield Formulation Dosage Form Packaging Ingredient 500 g calcium polysul...

A: Given that -  Mass of precipitated Sulfur, S = 343.4 g  Mass of calcium polysulphide, CaS4 = 500 g  ...

Q: Give the name and electronic configuration of three elements whose valence shell ends up with 4s¹ele...

A: The electronic configuration given is 4s1.  

Q: Calculate the Ecel of the following reaction Zno + Ni*²(aq) Zn*2(aq) Ni(s) When Ni*2 = 0.85 M and Zn...

A: [Ni+2] = 0.85 M [Zn+2] = 0.45 M We need to find emf of given cell reaction.   

Q: 4. How will you relate freezing point, boiling point, and osmotic pressure to solute concentration?

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Q: What is the oxidation number of N in NO2-1? а. -3 What is oxidation number of Cr in Cr2072-? b. +4 C...

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Q: Predict the ¹H NMR spectrum of diethoxymethane.

A: The molecular formula of diethoxymethane is C5H12O2.

Q: 3a. What is the number of components for the formulation: "Mineral oil + isopropyl alcohol"? CHOICE...

A: To answer the components, formulation and degrees of freedom of Mineral oil + isopropyl alcohol  

Q: Determine the amount of current (A) needed to deposit 350 mg. of Au from a solution of AuCl; in 30 m...

A: According to electrochemistry amount of substance deposited is 'w' W=zct Z = electrochemical eqv. we...

Q: In the reaction of magnesium metal with hydrochloric acid, how do you determine when the magnesium m...

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Q: Draw the product(s) formed when the triacylglycerol A is treated with: a) H2O, H+ (acidic medium) ...

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Q: When hydrogen reacts with calcium metal, what are the oxidation numbers of the calcium and hydrogen ...

A: Given chemical reaction is as follows: Ca(s) + H2(g) → CaH2(s) The oxidation state of a substance is...

Q: Provide a stepwise synthesis for benzyl alcohol to sodium benzoate with reagents KMnO4 and NaOH

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Q: 5. Calculate the mass % (w/w) Mg(OH)2 in your Milk of Magnesia sample. (2.25) mass of Mg(OH)2 mass %...

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Q: Calculate ΔH° for the combustion of methane. CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (g) Given the enth...

A: We have to calculate the ∆H° for Reaction.  

Q: Reaction E ( CuSO4(aq) + Mg(s) --> Cu(s) + MgSO4(aq) ). Speculate on the identity of this white soli...

A: In this case, a displacement reaction takes place. The magnesium when reacted with copper sulfate di...

Q: which of the following reaction leads to an increase in entropy of the system? a) NH4Cl(s) -> HCl(g)...

A: * Answer : Correct option is which entropy increases __ a) NH4Cl(s) -----> HCl(g) + NH3(g)   * Ex...

Q: 29) What pressure is exerted on a 20.0L container with 15.9 g of SO2(s) at a temperature of 25.0 °C ...

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Q: he magnesium EDTA complex was analyzed had a percentage of Mg which was higher than 100, why. Bearin...

A: Q- The magnesium EDTA complex was analyzed had a percentage of Mg which was higher than 100, why. Be...

Q: For which order reaction is the half-life of the reaction proportional to 1/k (k is the rate constan...

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Q: chemical formula c

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Q: Calculate the volume in milliliters of a 1.015 M NaOH solution required to titrate 24.05 mL of a 1.5...

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Q: . 9. Choose all the statements which are correct for an oxidizing agent. a. removes hydrogen b. is r...

A: Here we have to choose all the correct option for an oxidizing agent-

Q: 1. Use standard enthalpies of formation table to determine the change in enthalpy for each of these ...

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Q: Determine the amount of current (A) needed to deposit 350 mg. of Au from a solution of AuCl3 in 30 m...

A: According to Faraday's law of electrolysis, the amount of substance deposited at the electrode is di...

Q: What is true about eutrophication in lakes and other bodies of water? O it is always natural none of...

A:

Q: An unknown compound exhibits the following IR, 1H NMR, and 13C NMR spectra. In a mass spectrum of th...

A: To analyze the compound from the given data sets:

Q: ph=pkb ph>pkb ph

A: As we know that PH of any compound is inversely proportional to the concenttation of H+ion and H+is ...

Q: Environmental science is an interdisciplinary field of study. This means that.

A: Interdisciplinary field. It involves several disciplinary field. It is uses to redefine problems out...

Q: Determine the d electron configuration of [Cr(H2O)6]3+complex

A: Given : [Cr(H2O)6]3+  To write :- d electron configuration   

Q: Predict the d orbital splitting of [Fe(CH3)6]3-complex. A) (t2g)3(eg)1 B) (t2g)3(eg)2 C) (t2g)3(eg)0...

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Q: 1. Predict whether a decrease in temperature is a favorable or an unfavorable process for the follow...

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Q: 아。 Br 2 Acetic Acid OH H202 /1C0H.

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Q: How many formula units are in 6.6 grams of Si? Atomic weight of Si=28.09

A: We have to calculate the number of formula units.  

Q: Which of the following is NOT a greenhouse gas? O ce2

A: We know about green house gases these gases increases the temperature on the earth plate and also th...

Q: If an IR spectrum of a molecule shows 3 absorption peaks / bands, what is the number of IR active mo...

A: If an IR spectrum of a molecule shows 3 absorption peaks / bands ,the number of IR active modes of t...

Q: How many grams are in 2.00 moles of Be? Atomic weight of Be=9.01

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Q: constant-pressure calorimetry experiment, 27.0 mL of 1.00 M HCIO, was mixed with 27.0 mL of 1.00 M L...

A: Thus, the energy released from the neutralization reaction is 0.2316 KJ

Q: List three biological compounds/molecules per element that contain the following elements: Carbon ...

A: Carbon- Carbohydrates, Fats, Proteins, Nucleic Acids. Nitrogen- DNA and RNA, Proteins, Nucleobases, ...