A 0.25g of a certain substance is dissolved in 60g of water. The freezing point of the solution is - 0.050 °C. Knowing that the substance has a van't Hoff factor of 1 and is non-volatile, what is the molar mass of the substance? (Freezing point depression of water = - 1.86 °C/m) A. 0.00016 g/mol B. 156.25 g/mol C. 186.54 g/mol D. 1.86 g/mol

Q: 72. Identify the SYSTEMATIC name of the molecule that is illustrated in this item. O-4 o=S=O O A.…

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: draw the product formed if this compound will undergo acid-catalyzed fischer esterification

A: When 3-isopropyl pentan-5-ol-1-oic acid undergoes acid catalyzed Fischer esterification in presence…

Q: What mass of HCI is needed to make 3000g of 30% solution?MW: H=1g/mol, CI=35g/mol

A: Given, mass % of HCl = 30 % Mass of the solution = 3000 g mass of HCl needed = ?

Q: Consider the following mechanism What is the order with respect to each reactant? And write the rate…

A:

Q: Answer the following: Given that a  solution of KMnO4 was prepared and 21.68 mL was used to…

A: Given-> Volume of KMnO4(V1) = 21.68 ml = 0.02168 L Weight of Na2C2O4 = 0.2252 gm Molecular weight…

Q: Using appendix C, find H and S for this reaction (you will need this for b,c). delta s= 176.6J…

A:

Q: Find out the first row transition metals (M) for the following compounds (all of them obey 18e rule)…

A: The organometallic compounds that obey 18e rule are found to be stable. The formula to be followed:…

Q: What is the molarity of a solution in which 150g of CaO are dissolved in 1900ml of solution?  (MW:…

A: Given :-  Mass of CaO = 150 g  Volume of solution = 1900 mL  MW : Ca = 40g/mol, O=16g/mol  To…

Q: d functional group.

A:

Q: I didnt get the answer right.

A: Given:  Radius = 149 pm= 1.49 × 10-10 cm The volume of the unit cell is needed to be find out if X…

Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: A question based on mole concept that is to be accomplished.

Q: Give the chemical reaction of the following compounds 1. Ethanol and Ceric Ammonium Nitrate 2.…

A: All these given reactions are examples of complexation reaction where presence of active OH groups…

Q: Consider the following balanced equation: Cl 2(g) + 2 Br (aq) Br 2(aq) + 2 CI (aq) [CI 2] [Br ] Rate…

A:

Q: For the gas phase decomposition of nitrogen dioxide at 383 °C 2 NO,2 NO + 02 the average rate of…

A:

Q: O3 → O2 + O (fast) O3 + 0 → 202 (slow)

A: O3 ---> O2 + O.    (Fast) O3 + O ---> 2O2.    (slow)

Q: omization is a process in atomic spectroscopy in which the sample is volatilized and decomposed to…

A: The statement, "Atomization is a process in atomic spectroscopy in which the sample is volatilized…

Q: How many lone pairs are involved in sustaining the conjugation of pyridine?

A: Lone pair are not involved in conjugation in pyridine

Q: (c) electron capture by molybdenum-93 O 93 je+2 Nb Mo + _¡e → Nb ie+ Te He + 20 Zr Мо > 42 O 93 42…

A: ->From electron capture atomic number decreases by one unit. ->From positron emission atomic…

Q: At a certain temperature, the reaction 2HF(g) H2(g) + F2(g) has K = 1.2 × 10-13. Does this reaction…

A:

Q: If the pKa of the indicator is approximately 6, to which of the following equivalence point will it…

A: A suitable indicator should have pH of color transition is given by the equation of pH.…

Q: If a positron is to be emitted spontaneously, how much more mass (as a minimum) must an atom of the…

A: Parent nuclide  = Daughter nuclide + positron

Q: What volume of a 0.350 M KCl solution will completely react with 0.125 L of a 0.185 M Pb(NO3)2…

A:

Q: For the reaction 2 Cu+(aq) + Sn4+(aq)  ->  2 Cu2+(aq)  + Sn2+(aq), E° = -0.0050 V, cell   (a)…

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Q: A pleasant-smelling liquid having a boiling point of 101°C was subjected to IR Spectroscopy to…

A:

Q: H 'H. N. H H H

A: Given compound is :  Identify the encircled functional group = ?

Q: Which Product(s) can NOT be the major (Markovnikov) product of water and sulfuric acid reacting with…

A:

Q: How many moles of iron will you need to react with 2.13 moles of sulfur? Given the following…

A: The amount of iron required is given below

Q: Calculate the root mean square velocity, in m/s, of Cl2 at 273.0 K. Assume ideal gas behavior

A: Molar mass of Cl2 is 70.906 amu

Q: Question 1 Analysis of cadmium in the water sample was determine by AAS with multiple concentration…

A: Solution- From the given data we have to calculate the unknown concentration of standard flask 4.

Q: write a balnced chemical reaction to synthesize this compound via fischer esterification

A:

Q: 4. Aspirin is one of the products when you mix Salicylic acid and Acetic anhydride. One kilogram of…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: I would like to see the steps (arrows) that was taking to get all five isomers that is currently…

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Q: The activation energy for the gas phase decomposition of 2-bromopropane is 212 k).…

A:

Q: 3 A(g) + 4 B(s) 2 C(s) It takes 2.00 L pure gas sample A at T=298 K and 1.2 atm to react completely…

A: To find number of moles of reactant, ideal gas equation can be used.    Ideal gas equation is given…

Q: In SN2 mechanism, the observed precipitate (the silver halide) indicates a carbocation has formed. O…

A:

Q: Fl in the blanks for the table given below: [H+] [OH-] pH pOH 4.2 x 105 A В C D 6.8 x 107 E F G H.…

A: Fill in the blanks by using simple formula of pH and pOH ---->

Q: The functional group region of an infrared spectrum is greater than or equal to 1500 cm-1. True…

A:

Q: 6*10 10 3000 v/ cm 2000 1000 -750.672 -864.37 -908.355 1017.8 -1052.29 -1119.21 -1221.98 1338.92…

A:

Q: HO and ?

A: Alcohol can be defined as an organic compound in which carbon atom is attached to hydroxyl group.

Q: Identify which type of hybridization the pointed element exhibit. * N=C=N sp4 sp3 sp2 sp

A: In the given compound , ends carbon atoms have sp3 hybridization, both oxygen atoms attached with…

Q: TRUE OR FALSE 1. Liquids have short range order arrangement. 2. Solids both have long, and…

A:

Q: Solve for the pH level of an ammonia buffer. Given that it contains 500.0 mL of 0.3701 M ammonia and…

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: BALANCING REDOX REACTIONS USING THE CHANGE IN OXIDATION NUMBER METHOD     1. PbO + NH3  >  Pb + N2 +…

A: Given reaction is :  PbO + NH3  >  Pb + N2 + H2O What are the two elements that changed its…

Q: Which of the following is not a characteristic of metals? Group of answer choices basic oxides…

A: 1) Basic oxides Metals have basic oxides.

Q: Question 7 In a two component mixture assuming it forms a single phase, how many variable can be…

A:

Q: Calculate the root-mean-square velocity, in m/s, for a neon atom at 12.1°C. The universal gas…

A: The formula for the root mean square velocity of any atom is given by:

Q: Based from the electrochemical series of metals, what are the implications if a metal has a very…

A: Here we have to write implications if a metal have very negative redox potential.

Q: Determine the total number of sigma (ơ) bonds and the total number of pi (T) bonds in the compound…

A:

Q: At a certain temperature, the reaction 2HF(g) H2(g) + F2(g) has K 1.2 x 10 13. Does this reaction…

A: Reaction: 2HF(g) <=> H2(g) + F2(g) Kc = 1.2 × 10-13 Moles of HF = 0.013 mol Volume of…

Q: Blank 1 is the breakdown of chemical compounds in organic matter that results in the release of…

A: The process of organic matter decomposition includes the physical breakdown of substrate and…

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.