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When the one ore lead (ii) sulfide burns in ixygen, the products are lead (ii) oxide and sulfur dioxide
A. How many grams of oxygen are required to react with 0.126 mole lead (ii) sulfide?
B. How many grams of sulfur dioxide can be produced when 65.0 g lead (ii) sulfide react?
C. How many grams of lead (ii) sulfide are used to produce 123g lead(ii) oxide?
The equilibrium constant, Kc, for the following reaction is 7.00E-5 at 673 k. Calculate Kp for this reaction at this temperature.
a main component of photochemical smog. Classify this reaction as a synthesis, decomposition, single-displacement, or double-displacement reaction.
An aqueous solution containing 5.0 g of solute in 100 ml is extracted w/three 25 ml portion of diethyl ether. What is the total amount of solute
If a 210 mg piece of gold (density =19.32 g/cm^3 ) is hammered into a sheet measuring 2.5 x 1.0 ft , what is the average thickness of the sheet in meters?
A sample of of H2O with a mass of 46.0 grams has the temperature of 100C ,how many jolues of energy are necessary to boil the water.
only hydrogen gas would be left as a product b. the equilibrium would shift to the left c. the equilibrium would shift to the right d. the equilibrium would remain unchanged
A sample of neon effuses from a container in 77 seconds. The same amount of an unknown noble gas requires 157 seconds. identify the gas.
Calculate the molecular weight of this gas if A sample of gas weighs 0.250 g and occupies a volume of 112 cm3 at STP?
Sodium sulfate dissolves as follows: Na2SO4(s) 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M.
Carbonic acid is an intermediate step in the transport of CO2out of body. If the pH of blood is 7.4, what percent is carbonic
A cook wants to heat 1.75 of water from 26.0 to 100.0 If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 of heat per gram.
Consider the coordination of Cu2+ by the tridentate iminodiacetate ligand, HN(CH2CO2-)2, abbreviated A2-. When the monoprotonated form
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