What is expected with freezing temperature of DCM if caffeine is dissolved in it? O remains the same O decrease cannot be predicted O increase

Q: It is the discipline of deciding what a product will be called.* Directions for use Manufacturer Phy...

A: Question 10 - - > It is the discipline of deciding what a product will be called product name.  T...

Q: Choose the best set of reagents/conditions to convert 1,3-butadiene to 1,4-dibromo-2-butene

A: 1,3-butadiene to 1,4-dibromo-2-butene follows free radical mechanism.

Q: What are the oxidation numbers of Pb and CI (respectively) in plumbous chloride? O a 12-1 Ob +4,-1 O...

A: Here, we have to find the oxidation numbers of Pb and Cl in plumbous chloride.    

Q: Imagine you collected a volcanic rock while on vacation to Hawaii and you want to know how old it is...

A: GIVEN: Amount of parent nuclei (U-234) = 4 micrograms Amount of daughter nuclei (Th- 230) = 124 micr...

Q: one day a week. Their round trip to work is 6 miles. They save 12.5 gallons annually by biking one d...

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Q: 1. Calculate AH for the reaction: C2H4 (g) + H2 (g) --> C2H (g), from the following data. C2H4 (g) +...

A:

Q: which of the following statements best describes what occurs when a bowl of soup is warmed from 20 °...

A: To answer this question , we would check the heat gain and heat lose.   

Q: antherine is a polycyclic alkyloid obtained from the shrub Poranthera corymbosa. In 1974, the molecu...

A: First step of the conversation is the blocking of C=O group by diol in presence of acid catalyst. Th...

Q: Which of the following is not true about polymers? *   a. high strength b. wide choice of color and ...

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Q: #13-15 Choose the letter of the correct answer.

A: multiple Choice Question.,

Q: What is the concentration in molarity of an aqueous solution which contains 1.69% by mass acetone (M...

A:

Q: 4. Br Br Br -CI Br - CI H3C H3C H3C CH3 C Which of these is a Fischer projection of (S) 1-bromo-1-ch...

A: (S)1-bromo-1-chloro-1-fluoropropane  

Q: Which of the following would be made from an alcohol by a dehydration reaction? A) alkane B) alken...

A: Alcohol contains -OH group and dehydration of alcohol means removal of water. 

Q: A high-level molecular electronic structure calculation predicts oxygen valence molecular orbitals w...

A:

Q: Practice: What is the pH and the oxalate concentration of a 1.0 M solution of oxalic acid at 25 °C? ...

A: The solution is given below - 

Q: What is the OH- concentration in a solution that is (5.00x10^-1) M in HNO3? Express your answer to t...

A: Concentration of OH^-=5.00×10^-1M

Q: 6. Provide the complete mechanism (arrow, lone pairs, formal charges) for the following transformati...

A:

Q: Manny, Bong, and Rodrigo tried to do a recrystallization technique to purify a crude sample of benzo...

A: A question based on analytical separations that is to be accomplished.

Q: You are a chemist at a cement-producing company whose main business model is to sell carbonate-based...

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Q: Explain the difference between the terms dissolve and dissociate. Then, (ii) explain why ionic subst...

A: Dissociation: It is the breakdown of a compound into smaller particles. Dissociation forms product t...

Q: Determine the (H*|. (OH], and pOH of a solution with a pH of 12.26 at 25 °C. [H*| = %3D (OH-| = POH ...

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Q: What is the chemical formula if the compound contains 1 Nitrogen and 4 Hydrogen? * b. N4HỊ a. NH. A....

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Q: a gas occupies 42.6 L at 2.00 atm pressure and 27 degrees. calculate its volume if the pressure is d...

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Q: gas state reacts with 1 mole of water in the gas state, 1 mole of ethanol in the gas state is produc...

A: C2H4(g) + H2O(g)----> C2H5OH(g) 0.020 M    0.015 M      1.35 M  

Q: Solve the given problems with complete solution. Consider the following reactions: 3 Ni 2* (aq) + 2C...

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Q: One mole of He gas with CVm=3R/2 essentially independent of temperature expands reversibly from 24.6...

A: We have to calculate the final pressure and temperature if the expansion is: (a) isothermal (b) adia...

Q: What is the H+ concentration in a solution that is (3.80x10^-2) M in Ca(OH)2? Express your answer to...

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Q: Describe the temperature-composition diagram. What did you observe with the temperature of the vapor...

A: Type of chart used to show conditions at which thermodynamically distinct phases occur and coexist a...

Q: 4. Write the balanced equation for the reaction of 4-(bromomethyl)benzoic acid with methanol. 5. Com...

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Q: At equilibrium, the concentration of the reactants change until the concentration of the products is...

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Q: Analyzing Polymers (Gray Band of Goggles) Interpretation:

A: A question based on IR spectroscopy that is to be accomplished.

Q: What is the H+ concentration in a solution that is (3.80x10^-2) M in Ca(OH)2? Express your answer to...

A: [ Ca(OH)2] = 3.80x10-2 M    

Q: What is the distinction between matrix and dispersed phases in a composite material?

A: a composite is formed with a continuous phase called the matrix. As shown in the figure below, the m...

Q: explain to me what Isosteric replacements are when talking about strategies for lead molecule modifi...

A:  A bioisostere is a molecule resulting from the exchange of an atom or of a group of atoms with an a...

Q: In order to convert between grams and moles of the same compound, where do you find the appropriate ...

A: Choose the correct option of the given question--

Q: Which of the following is not a heating Equipment? а. Electric Furnace O b. Desiccator С. Burners O ...

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Which of the following represents the relative fraction of species as a function of pH for the dipro...

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Q: the boiling point of thi

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Q: A cubic crystal has the following unit cell dimensions: a = b = c = 100.0Å, a = B = y = 90.0° What w...

A: X-ray is a constructive intreference and based on Bragg's law. Bragg's plane is a  plane in reciproc...

Q: What is the pH of a 0.36 M aqueous solution of the weak acid anisic acid (Ka=3.38x10^-5)?

A:

Q: 22.) Determine the anticipated SUBSTITUTION mechanism for the reaction below. Using а.) correct mech...

A: SN1 mechanism follows two steps in the first step ionization of alkylhalide to give carbocation whic...

Q: 20. When HCl is placed in water it dissociates completely to the hydronium ion and the chloride ion ...

A: ->When HCl dissolved in water it dissociate into H^+ and Cl^- then H2O can reacts with H^+ and fo...

Q: Write a sequence of steps depicting the mechanisms of each of the following reactions. Use curved ar...

A:

Q: Please help use proper significant figure

A: Entropy of vaporization = 87.30 J/Kmole Enthalpy of vaporization = 33.30 KJ/mole  

Q: (38) (a) For the Xee) atoms at 250K, considered to be an ideal gas, indicate in the distribution fun...

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Q: 4.0 liters of a Barium Hydroxide solution of pH =10.5 is needed How many grams of Barium Hydroxide a...

A: Consider the given information is as follows; pH of solution = 10.5 Volume = 4.0 L Mass of barium hy...

Q: 26. Calculate the pH at 25 °C of a solution that is 0.4 M in Na;HASO, at 25 °C (K. =5.8 × 10° , K. =...

A:

Q: CH3 CH3 CI CI- H CI CI- CH3 ČH3 These two structures represent: O a pair of structural isomers O a p...

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Q: b. HaOa В. . CiaHaaO1 d. Naci

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Q: For the reaction A + B C + D, calculate the Keq (in moles / litre to five significant figures) if a...

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.