Why does molality stay the same when 25mL is removed from the original 50mL salt solution but changes when 12.5mL of the salt solution is added to 12.5mL of DI water?

Q: Describe the relationship of phase transition to the IMFs. How does the IMFs affect the phase transi...

A: Phase transition means changing in state of matter that is solid, liquid and gas.  Intermolecular fo...

Q: A 9.37 g sample of an unknown element was determined to be 0.0714 moles. What is the identity of the...

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Q: 8. Determine the glement of unsaturation from the compounds or formulas below А. В.

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Q: 3. Complete the following multistep syntheses by showing the major intermediate products and the rea...

A: Here we have to synthesize the following given compounds by multistep reactions using necessary reag...

Q: What volume of oxygen gas is required to react completely with 1.34 mol of hydrochloric acid sccordi...

A: The balance equation is 4HCl+O2=2H2O+2Cl2 from the above equation we see that 4 mol HCl react with 1...

Q: What are all of the constitutional monomers of C7H16 and their respective names

A: Constitutional isomers are structural isomers which have the same molecular formula but have differe...

Q: I. What products are formed when each alcohol is oxidized with K2Cr207? a. CH;CH,CH2CH,CH2OH ОН ОН H...

A: Concept: 1) K2Cr2O7 is a powerful uncontrolled oxidizing agent.  2) primary alcohol is converted int...

Q: A group of students were trying to experimentally determine the density of an unknown liquid. They d...

A: The data given is, And the volume of the liquid = 5.00 mL.  

Q: An electroplating solution is made up of nickel(II) sulfate. How much time in minutes (DON'T INCLUDE...

A: Given,  Mass of Nickel (W) = 0.500 g Current (C) = 3.00 A Time (t) = ? minute

Q: + NaHGO3 HO.

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Q: In order to form Ba(IO3)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NaIO3. How...

A: Solving only first three subparts in accordance with the guidelines. We will first calculate millimo...

Q: a given temperature, a first-order reaction has a rate constant of 1.5 × 10–3 s–1. What is the time ...

A: Given : Rate constant =  1.5 × 10–3 s–1

Q: What is the mass in grams of 38.50 moles of LiCl?

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Q: In order to form Ba(IO3)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NaIO3. Ksp...

A: Given: Concentration of Ba(NO3)2 taken = 0.500 M Concentration of NaIO3 taken = 0.0500 M Volume of B...

Q: Give the structure of the compound and explain exactly how you reached this conclusion. Toluene INFR...

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Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair ...

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this...

Q: 39. What is the [H3O-] and [OH-] ion concentration respectively in a solution that contains 0.155 M ...

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Q: Problem 5. Label the acid and base in the following reaction. Show the mechanism of deprotonation re...

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Q: What volume of 0.7777 M HNO3 is needed in order to produce 200 mL of 0.1550 M HNO3?   12.24 mL   1...

A: Given data - - > M1 = 0.7777 M V1 =? M2 = 0.1550 M V2 = 200 ml We know that from the formula M1V1...

Q: Write the condense structure of the following compound 4. 2- Butanone 5. Heptanoic Acid

A: The condensed structural formula is a shorthand representation of an organic molecule. In the conden...

Q: How many grams of pyrazine (C4H4N2) would have to be dissolved in 1.50 kg of carbon tetrachloride to...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: How many neutrons in Helium? He Answer: Check

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Q: The following set of data was obtained by the method of initial rates for the reaction: 10) BrO3-(aq...

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Q: Calculate the retardation factor (Rf) for dissolved Tetrachloroethene contamination given the bulk d...

A: Soil contains various ions, nutrients and waste material present in them. This  substances are migra...

Q: NH2 A. CH3(CH2):CH3 В. С. D. 4000 1500 Wavenumbers em 1) 2000 Wavenumbers tom 1) 2500 2000 Waenumere...

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Q: Use the concentrations of [H3O*] and [OH] to calculate the missing concentration and indicate whethe...

A: When the concentration of OH- is given, pOH is calculated. And when the concentration of H+ is given...

Q: NSCI- Chemistry  Answer only 10-12

A: Units of measurement are necessary to measure the quantities. There are instances when the measuring...

Q: Consider the structure for 2,3-dimethylhexane (shown in the box below). Sighting down the bond indic...

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Q: Find [Cu+] in equilibrium with CuBr(s) and 0.10 M Br2.

A: Concentration of Br2 = 0.10M Ksp of CuBr = 5 × 10-9 

Q: Which is bronsted lowry acid and which is bronsted lowry base, and which is no one. Answer and expla...

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Q: The equation for the dissolving of lead (II) chloride (including heat) is: PBCI2(s) + heat Pb2+ (a q...

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Q: Provide a name for each compound. Include relative stereochemistry where appropriate. Br Br Br

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Q: What particle is emitted when Cobalt-60 decays to nickel-60? A. neutron D. a-particle B. proton E. b...

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Q: 18. How many grams of solid Cu2SO4 5H2O (249.68 g/mol) must be dissolved in 400 mL of water to obtai...

A: Concentration or molarity is defined as the number of moles of solute dissolved in one liter of solu...

Q: What quantity in moles of KCI are there in 50.0 mL of 0.141 M KCI?

A: Molarity is defined as the number of moles of solute dissolved in one liter of solution. Molarity = ...

Q: Gaseous butane (CH (CH,) CH, reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: To find theoretical yield, first write balanced reaction with O2. Then balance that reaction and fin...

Q: 2) Use the data below to answer the questions that follow substance milk Pickle juice Oven cleaner [...

A: Given,  [H3O+] for milk = 3.2×10^(-7)  [H3O+] for pickle juice = 2.0 × 10^(-4)  [H3O+] for oven clea...

Q: How many moles of S are in one mole of Al2(SO4)3? 2 mol S O 4 mol S O 3 mol S 1 mol S

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Q: In order to form Ba(IO3)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NaIO3.   ...

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Q: An aqueous solution of barium hydroxide is standardized by titration with a 0.109 M solution of hydr...

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Q: The chemical formula for strontium sulfide is SrS. A chemist measured the amount of strontium sulfid...

A: Mass of SrS = 6.7  g  Number of moles of SrS = ? 

Q: What is the mass of 4.63 x 1012 atoms of Fe? 9.76 x 10-10 g O 1.62 x 10 10g O 1.08 x 10-10 g O 2.73 ...

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Q: An oxide of tungsten (symbol W) is a brown solid. If 8.54 g of the compound contains 7.27 g of tungs...

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Q: Part 2: Non-Mass-Ma 5. Ammonia is made by reacting nitrogen and hydrogen according to the following ...

A: ****please note as you didn't ask for particular que number in solving first question for you**   Ba...

Q: Measuring the proportional response of an analyte to things such as light or an electric current is ...

A: Option A is correct answer.  

Q: What is the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of 1....

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Q: A procedure to synthesize [Co(NH3)5Cl]Cl2 requires 1.5 mol NH3, 0.10 mol H2O2, and 0.60 mol HCl. The...

A: The balanced reaction given is, => Co2+ (aq) + n NH3 (aq) + 3 Cl- (aq) + 0.5 H2O2 (aq) → CoCl3·nN...

Q: Nitric oxide, an important pollutant in air, is formed from the elements nitrogen and oxygen at high...

A: Given : Kc = 0.010

Q: Vanadium atom has a radius of 121 pm and crystallizes with a BCC unit cell. Determine the number of ...

A: The number of unit cell can be determined by dividing the total volume of solid sample by the volume...

Q: Liquid octane (CH,(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: CH3(CH2)6CH3 +(50/2) O2 ----------> 8CO2+9H2O  Complete combustion of hydrocarbon leads to the fo...

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.