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How many gram os of KCl are produced by the thermal decomposition of KClO3 that produces 25.0 mL of O2 at 25.0°C and 1 atm pressure? You require to write the balanced equation yourself before pr
Assume you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitra
Helium is mixed with oxygen gas for deep-sea divers. Compute the percent by volume of oxygen gas in the mixture if the diver has to submerge to a depth where the total pressuer is 4.20 atm. The part
Phosphorous trichloride can be produced from the reaction of phosphorous, which is an allotrope of phosphorous with the formula P4, with chlorine. If 1.00g P4 reacts with 1.00 g chlorine, which reac
Round off each of the following numbers to the indicated number of significant digits and write the answers in standard scientific notation.
Which group from the given list: a) 1A b) 2A c) 3A d) 4A e) 5A This group contains two of the most important element found on earth.
How various gram os of KCl are produced by the thermal decomposition of KClO3 that produces 25.0 mL of O2 at 25.0°C and 1 atm pressure? You need to write the balanced equation yourself before pr
Addition of AgNO3 to aqueous solutions of the complex results in a cloudy white precipitate, presumably AgCl. You dissolve 0.1000 g of the complex in water and perform a precipitation titration with
Find the mass of a reactant using Dalton's law of partial pressures, ideal gas law, and stoichiometry.
The Hydrogen gas produced is collected over water at 25.0oC using an arrangement similar to that shown . The volume of the gas is 7.80L and the pressure is 0.980atm. Calculate the amount of zinc met
To determine the partial pressure of each gas in a mixture of gases using Dalton's law of partial pressures.
A mixture of gases contains 0.31 mol CH4. 0.25 mol C2H6 and 0.29 mol C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases. A 2.5-L flask at 15 C contains a mixture of N
Balance equation and determine the volume of air in liters at 35.0 degrees C and 790 mmHg necessary to burn 227 g of ethanol. Assume that air is 21.0 percent O2 by volume.
Dissolving 3.00 g of an impure sample of calcium carbonate in hydrochloric acid produced 0.656 L of carbon dioxide (measured at 20degrees C and 792mm/Hg). Calculate the percent by mass of calcium c
What is the mass of the solid NH4Cl formed when 73.0 g of NH3 are mixed with an equal mass of HCI? What is the volume of the gas remaining, measured at 14degrees C and 752 mmHg? What gas is it.
There are many automobile industries exploring different types of energy supplies other than gasoline. Conduct some research on these alternative fuel sources for automobiles.
What is the equilibrium constant and describe reaction rate. (Ex. Forward or reverse).
Find out the exact significant figures for the values.
Find out the exact significant figures for each of the values.
Find out the values are exact or inexact
We were given concentration and volume of a weak acid and were asked to determine dissociation constant of weak acid, in second question we were asked to find concentration of each species in soluti
We were given standard reduction potentials and were asked to find standard reduction potential for the half-reaction.
Examine the meaning of pH and [H+], the pH scale and why you're chosen substance is acidic. Use scientific notation or enough decimal places so that your answer has at least 3 place values. For exam
We were given mass and volume and we were asked to find limiting reactant, in second question we were asked to find percent by mass of oxygen in CaCO3.
An isotope of Gd has a half life of 25 minutes. How long would you have to wait for eight half lives to pass.