How would you prepare an aqueous solution of a 15.5L of 1.3 M urea [(NH2)2C=O] from 2.1 M urea?

Q: How many grams of magnesium are required to produce 4.380 kg of Si? (At mass: Mg324.31: Si-28.09) SI...

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Q: e moles o e correct

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Q: What type of intermolecular forces are present in this compound?

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Q: 6. Here we have the molecular orbital energy diagram for this chlorophyll molecule. Match the absorp...

A: Here given a molecular orbital diagram for the chlorophyll molecule. And also the absorbance diagram...

Q: 3. From the given compound below, calculate the heat of reaction at constant pressure. Use the stand...

A: From the given compound below, calculate the heat of reaction at constant pressure. Use the standard...

Q: Predict the two major organic products from the following reaction. (Select all apply, Points will b...

A: This reaction is electrophilic aromatic substitution reaction in which benzene ring acts as nucleoph...

Q: 26. The change in energy for which of the following processes corresponds to the first ionization en...

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Q: 2 M of methanol (CH3OH) was added to NaCl to make a solution ,the mole action of methanol was 0.6 an...

A: Given, Molarity of methanol= 2M Mol fraction of methanol= 0.6 Total moles of prepared solution= 9 mo...

Q: The solubility of benzoic acid in water is 0.21g per 100mL of water at 10 degrees celsius, 0.27g per...

A: Given that, the solubility of benzoic acid per 100 mL of water is 0.21 g at 10°C, 0.27 g at 18°C, an...

Q: Aqueous sulfuric acid (H,SO.) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium su...

A: The balanced equation is as :-  H2SO4(aq) + 2NaOH(s) ----> Na2SO4(s) + 2H2O(l)

Q: Question 8 Which of the following expressions does not represent a proper expression for the rate of...

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Q: Which of the following will lower the activation energy for a reaction? O increasing the concentrati...

A: In a given chemical reaction, the minimum amount of energy required by the reactant molecules to att...

Q: Consider a buffer solution that contains 0.25 M CgHalCO2H){CO2K) and 0.15 M COH4(CO2K)2. pk (CH4(CO2...

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Q: When it comes to predicting the bond orders using MO theory and VB theory, which of the following st...

A: A question based on atomic structure that is to be accomplished.

Q: In the beginning of the procedure, you will combine 1g of 3-nitrophthalic acid along with 2 mL of 8%...

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Q: A 30.00 mL sample of 0.400 M HNO3 is titrated with 0.600 M KOH. What is the balanced neutralization...

A: Strong acid completely dissociate to give hydrogen ion on  Strong base completely dissociate to give...

Q: 2. Calculate the mass density of air at the surface of the Earth using the ideal gas law and assumin...

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Q: Can the combination of NH3 and (NH4)2SO4 form a buffer? Use appropriate reactions to explain why or ...

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Q: Describe the relationship between each of the pairs of isomers shown by recording Constitutional, Co...

A: If the configuration of all the chiral centres get reversed then they are enantiomers and if all rem...

Q: The value of Henry's law constant for helium (He), hydrogen (H2) and oxygen (02) are respectively 14...

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Q: 1. Provide a systematic name for each of the following compounds

A: Given; structure of molecules

Q: Use your molecular modeling kit to determine the absolute configurations of the following compounds....

A: Given : structure of molecules

Q: H3C a b ENZCH3 CH3 d 90° NH2 COOH

A: Symmetry point group : A Point Group describes all the symmetry operations that can be performed on ...

Q: What is the pH of a solution made by mixing 40.0 mL of 0.035 M KOH (aq) and 91.3 mL of 0.031 M Sr(OH...

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Q: PROCEDURE A. Activity Proper II. 1. Given the experimental data below. Phase Present Ice (solid) Tem...

A: Strong ice is warmed and the temperature increments until the typical freezing/softening place of ze...

Q: Aqueous sulfuric acid (H,SO,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium su...

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Q: Which of the following statements is correct about the formation of emulsion? O Soaps and detergents...

A:                                 Answer  Which statement is correct about the formation of emulsion E...

Q: How many signals do you expect in the 1°C NMR spectrum of the following compound? O Seven O Three O ...

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Q: Question 4 A catalyst can the rate of a reaction by providing an alternative pathway with a activati...

A: Activation energy is the minimum amount of energy that is required for chemical reaction to occur.

Q: Reaction with Ammonium Molybdate and dilute Nitric Acid

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Q: Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when pl...

A: Given :  Mass of the object = 149.8 g . The amount of water displaced by an  object  submerged in wa...

Q: It is the study of the heat or energy involved in physical and chemical changes. Thermodynamics The...

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Q: Question 5 The rate of a reaction depends on collision frequency O collision energy o ollision orien...

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: The half-life of a first-order reaction is 13 min. If the initial concentration of reactant is 0.085...

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Q: O STOICHIOMETRY Theoretical yield of chemical reactions D 1/5 Liquid octane (CH; (CH,),CH;) reacts w...

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Q: The ion-product constant of water, Kw, is 9.60×10−14 at 60°C. What is the pH of pure water at the sa...

A: For pure water [H+] = [OH -]  

Q: 7.40 a. Suggest an explanation for the fact that 1-methylcyclopropene is some 42 kJ/mol (10 kcal/mol...

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Q: 13. The reaction of HCl with NaOH is represented by the equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2...

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Q: What is the molar mass of methanol:  CH3OH ?

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Q: Two trials were completed in a kinetics experiment, resulting in the data collected below. Calculate...

A: The experimental values for two trials of a kinetic results are given as follows.  Trial Acetone,...

Q: Consider the following unbalanced chemical equation. CSH12() + O2(g) → CO2(g) + H20(1) If 46.1 grams...

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Q: Explain the relation of chemical shifts to the formula and NMR data givemn? 1. C9H1204S S#769027 360...

A: The solution of the question is given below:

Q: 1. What is the net ionic equation for the acid–base reaction between the weak acid, nitrous acid and...

A: We have a weak acid which is nitrous acid and strong base KOH.

Q: If you added 5.0 mL of 2.0 M NAOH to 45.0 mL of pure water what would the resulting ApH of the solut...

A:     5.0 mL of 2.0 M of NaOH is added to 45.0 mL of pure water. We have to calculate the resulting ∆p...

Q: 38) During the early 1970s, the price of copper rose to a point where the cent contained almost one ...

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Q: From the given compound below, calculate the heat of reaction at constant pressure. C2H5OH-CO2 + H2...

A: C2H5OH (l) + 3O2(g) ----> 2CO2 (g)+ 3H2O(g) ∆Hof CO2 = -393.5 kJ/mol ∆Hof H2O = -241.8 kJ/mol ∆Ho...

Q: What is the molarity of a solution in which 71.37 grams of sodium nitrate, NaNO3 are dissolved in 39...

A: Molarity of solution is defined as numbers of moles of solute dissolved per litre of solution.  

Q: Pure iron has a change in crystal structure from BCC to FCC when heating up above 2. a) 912°C. If th...

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Q: Which of the following structural formulas represent identical compounds and which represent constit...

A: Answer: Compounds those have similar molecular formulas but different structural formulas are called...

Q: Which of the following is true? a. A slow reaction has small Ae to reach the Ts and start forming p...

A: a. A slow reaction has small Ae to reach the Ts and start forming products.