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Question: Pure oxygen was first made by heating mercury (II) oxide: 2HgO --> 2HgO2. How many grams of mercury and how many grams of oxygen are formed from 45.5 g of HgO?
What is the basic principle of heat transfer applied to obtain the calorimeter heat capacity and heat of neutralization?
Benzyl chloride, C6H5CH2Cl, reacts with ethanolic KOH to form two products.give their identities and suggest how they are formed. State type of reaction undergone by benzyl chloride.
First undergoes constant PRESSURE process, followed by constant VOLUME process. FIND: air specific volume at initial, final, and both intermediate states.
The temperature stopped changing at 29.40 C. What is the specific heat of the metal? The specific heat of water is 4.18 J/g K.
An ideal gas at a given state expands to a fixed volume by two types of processes: (i) isobaric, (ii) isothermal. For which case is the work done greater?
Consider 100 ml of 10% solute and 10 ml of 50& solute. Which has the greatest concentration of solute? What is the concentration of solute? Which has a greater quantity of solute? What is the a
Chemists studied the formation of phosgene by sealing 0.73 atm of carbon monoxide and 0.98 atm of chlorine in a reactor at a certain temperature. The pressure dropped smoothly to 1.32 atm as the sys
In which series are the carbon-carbon bond lengths arranged in the correct order from shortest to longest?
If you are interested in obtaining the hexane and discarding the sodium chloride solution, what would you do and why?
How many grams of ammonia gas would be formed when 11.2 Liters of hydrogen gas at STP reacts with 4.72 Liters of nitrogen gas? Be sure to determine which reagent is the limiting reagent to determin
Draw a Kekulediagram for benzene. Why is this representation of benzene not considered to be as good as drawing a hexagon with a circle in the centre? What does the circle represent?
Give a complete specific mechanism for the formation of the ester, ethyl 2-phenyl acetate?
What are different types of separating techniques for separating salt and water?
Enough of a monoprotic acid is dissolved in water to produce a 0.0170 M solution. The pH of the resulting solution is 6.34. Calculate the Ka for the acid.
Draw the structures of methyl salicylate, and say what evidence indicates that methyl salicylate was formed. Draw the structures of both acetylsalicylic acid and methyl salicylate.
Write the equation for the synthesis of this ester from the acid and the alcohol. Provide the structure of isoamyl acetate, the alarm pheromone of the honeybee.
A 10.00 ml sample of an unknown aqueous nickel (II) solution was treated and found to produce 0.0532 g of Ni(DMG)2(Molar mass=288.9155g/mol) precipitate. Calculate the percent Nickel in the ore s
Draw the structures of both acetylsalicylic acid and methyl salicylate. Circle and name the funcitnal groups in both compounds
Find the mass of sugar (C6H12O6) required to produce .0812 moles of carbon dioxide gas (CO)2 described by the following equation.
What is the outer configuration of d subshell of W(CO)6. I have put d6 as its oxidation state is 0 and coordination number is 6. The same applies for Re(CO)4- I have put down d8 with coordination n
What is thee sum of the charges on alanine, aspartic acid, and lysine? How did you find this answer?
The density of the gas phase at that point was found to be 0.1528 g L-1. Assuming the gas phase is ideal and composed only of a sulfur species (Sn), calculate a value for n?
Calculate the total amount of acid in moles, in the equilibrium mixture using the average titre from the titration of the equilibrium mixture.
The heat capacity is critical in calculating the enthalpy and entropy. Using the data (heat capacity) from book or internet and also?fusH (I2) = 15.52387kJ/mol at 387K and?vap (I2) =41.57kJ/mol