When a volatile liquid is completely vaporized in an Erlenmeyer flask, the volume of the flask (and thus the vapor) can be determined by one of two methods. One method is by filling up the whole flask with water and then finding out the water volume by pouring the water into a measuring cylinder over multiple times and read off its volume. ● From the topics we learnt this semester, what do you think can be the other method of determining the volume of water in the flask?

Q: 3.2 Propose a mechanism from the following reactions: HBr -Br

A: When 1-methylcyclohexene reacts with HBr, the addition of bromide ion occurs at the methyl…

Q: Draw a lewis structure for each ion. Show complete computations

A: A question based on molecules. Two ions are given that are to be explained based on their structure…

Q: Which one of the possible products is the least likely to be formed? بیاید م MCI possible products

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Q: 10. The K₂ of HONH₂ is 1.1 x 10-8. a. Calculate the pH and percent dissociation of a solution…

A: Given: Kb of HONH2 = 1.1 x 10-8 [HONH2] = 0.100 M To calculate: a) Calculate the pH and percent…

Q: Solution A: Solution B: Solution C: Solution D: 0.565 M HOCI 0.376 M HC1O4 0.817 M HCO₂H 0.789 M…

A: The pKa of the buffer solution is given by the Henderson-Hasselbalch equation, pKa = pH -…

Q: The equilibrium concentration of chromate ion in a saturated lead chromate solution is M.

A:

Q: Question regarding SDS-PAGE What would happen if you reversed the polarities of your system, thus…

A: SDS-PAGE (Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis) is a laboratory technique used…

Q: Calculate the concentration of all species, pH and Ka for 0.100 M acetic acid (assume 1.35…

A: Acetic acid is a weak acid and dissociates partially as:                              CH3COOH ⇔…

Q: 1. You may begin this part of the experiment while the electrolysis is progressing. These studies be…

A: Nernst equation will be represented as, Ecell = E0cell - RTnFlog[anode][cathode] Ecell = electrode…

Q: Quantum numbers arise naturally from the mathematics used to describe the possible states of an…

A: we have to determine the allowed set of quantum numbers

Q: What is gained by looking forward in the field of genetics?

A: Looking forward in the field of genetics offers several important benefits and opportunities.

Q: What element forms an ion with an electronic configuration of [Ne] and a -2 charge? element symbol:…

A: We have to tell which element forms an ion with an electronic configuration of [Ne] and a -2 charge.…

Q: Write the ground state electron configuration of Zn using the noble-gas shorthand notation. electron…

A: Noble gas - atomic number He - 2  Ne - 10  Ar - 18  According to Aufbau principle, electrons are…

Q: Balance the chemical equation using the smallest possible whole number:…

A: Balanced chemical equation : A balance chemical equation is defined as the reaction in which number…

Q: H3C CH3 H3C H3C. c=0 :CI :CI: :CI:

A: The given reaction is an example of Friedel Crafts acylation.

Q: What is the pOH of an aqueous solution of 0.171 M hydrochloric acid? pOH =

A:

Q: If a scientist weighs out 460.69 grams of ethanol, what is the mass of the carbon dioxide? Make sure…

A: # The given problem is an simple example of mole concept where, for a given balanced equation we…

Q: Curved arrows are used to illustrate the flow of electrons. Using the provid resonance structures,…

A: While drawing resonating structure position of atoms remains the same while position of  electrons…

Q: What is the function of resazurin in the reduction test and what type of chemical reactions is…

A: Resazurin is a blue non-toxic dye that is commonly used in reduction tests to determine the…

Q: 1. Nickel can adopt several different co-ordination geometries. Draw each of the following: A square…

A: When the coordination number is 4, then two arrangements are possible: Tetrahedral and Square Planar…

Q: A student mixes 50.mL of 0.15 M Na2CO3 and 50.0 of 0.15 M CaCl2 and collects 0.68 g of dried CaCO3.…

A: Given,  Molarity of Na2CO3 = 0.15 M Volume of Na2CO3 = 50.0 mL Molarity of CaCl2 = 0.15 M Volume of…

Q: Calculate the total number of atoms contained within this unit cell.

A: In a given unit cell, in addition to eight atoms at the eight corners of the unit cell, there is one…

Q: Nitroglycerin (C3H5N3O9), a liquid at room temperature (25 °C) and atmospheric pressure (1.01325 x…

A: C3H5N3O9  → 32N2 (g) + 14O2(g) +52H2O(l) + 3CO2(g)

Q: First step 2cu2S(s) + 3O2(g —2Cu2O(s) +2SO2(g). Second step: Cu2O(s) + C(s)—2Cu(s) + CO(g). Write…

A: Detail

Q: METALLIC CRYSTALS ARE ALWAYS... (Discuss the microscopic arrangement of the particles in these…

A: A question based on investigation of structure of solids. Metallic crystals and covalent network…

Q: Molecule or Polyatomic HOCI NO₂™ N₂H4 H₂O₂ Hint: the oxygens are connected Lewis structure H-O—CI:…

A: we have to determine the bond polarity and polarity of the molecule

Q: Imagine you have a mixture of these two refrigerants at 160°C and 2 Mpa. Which of the following…

A: A question based on properties of liquids. A graph of temperature against vapor pressure is given…

Q: The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid…

A: Strong acid-strong base titration shows equivalence point at pH=7. Strong acid-weak base titration…

Q: Write the half reactions and the overall reaction for the concentration cell.     2.  Calculate the…

A: A concentration cell is an electrochemical cell that consists of two half-cells with the same…

Q: If a scientist weighs out 460.69 grams of ethanol, how many moles of carbon dioxide will be…

A:

Q: 12) Below is the conformational potential energy curve for the rotational conformers bond. The van…

A:

Q: If a scientist collected the steam (gaseous water) produced in a bunch of three liter soda bottles,…

A: The balanced chemical equation is as follows: C6H5OH(l) +7O2(g)  →  6CO2(g) + 3H2O(g) We need to…

Q: 14. Draw the major product(s) expected from each of the following reactions: * b) d) CF3 SO3H…

A: The given organic reactions are undergoes aromatic electrophilic substitution reactions.

Q: Describe the chirality of the following amide: OH Br 3R,4R 3R,4S 3S,4R 3S,4S Submit Answer Tries 0/1…

A:

Q: Complete the following table: Ion Formula Cr²+ Ni²+ Fe³+ ences to access important values if needed…

A: Complete the following table  -

Q: How many grams of silver can be produced from the reaction of 104.2 g of silver nitrate with 2.33 g…

A:

Q: Suppose a 500. mL flask is filled with 0.80 mol of Cl₂ and 1.4 mol of HCI. The following reaction…

A:

Q: A gas occupies a volume of 5.3L at 30.2kPa. What volume will the gas occupy at 185.2kPa ? The…

A: According to Boyle's Law, for a fixed amount of gas at a constant temperature, the pressure and…

Q: An aqueous solution of chromium (III) flourish is electrolyzed. Write a balanced chemical equation…

A: Electrolysis involves the reduction as well as oxidation of the compound or element present in the…

Q: A chemist prepares a solution of silver perchlorate (AgClO4) by measuring out 1.73 kg of silver…

A:

Q: Using reaction equations, show how you could make the following compounds. You may use any reagent…

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: A pharmacist receives the following order for a hyperalimentation solution: Strength Commercially…

A: This question involves simple calculations.

Q: Predict the product of the following reaction and propose a reaction mechanism •NH H*

A: This is an example of acid catalysed hydrolysis of imine bonds to afford carbonyl compounds.

Q: What will be the major organic product from the dehydration of 2-propanol in the presence of a…

A: Detail

Q: a) Copper(II) fluoride contains 37.42% F by mass. Calculate the mass of fluorine (in g) contained in…

A:

Q: Problem 6 + base

A: Robinson annulation = Michael addition followed by Aldol condensation

Q: Use the References to access important values if needed for this question. Complete the following…

A: An ionic compound is formed by the combination of a cation (positively charged ion) and an anion…

Q: What is the solution concentration formed from 2.1 moles BaCl2 dissolved into 1.9 L of water?

A:

Q: Predict the organic product or products of the following react HCI a) (CH3)2C=CH₂ b) (CH3)2C=CH₂…

A: Given reactions are catalytic hydrogenolysis reaction, birch reduction, and elimination reaction.…

Q: Draw the structure of the major product(s) for the following reactions: Br CH3CH₂ONa CH3CH₂OH i. ii.…

A: These are the examples of nucleophilic substitution and elimination reactions

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.