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764 mL of chlorine gas are added to the reaction chamber at STP. How many grams of silicon metal are needed to react with this volume of chlorine gas?
CS2(l) + 3O2(g) -> CO2(g) + 2SO2(g) What volume of O2 is required to react with excess CS2 to produce 4.0 L of CO2? Assume all gases are measured at 0oC and 1 atm.
The reaction between solid sodium and Iron (III) oxide is one in a series of reactions that inflates an automobile airbag.
Suppose you have a sample of sodium weighing 11.62 g. How many atoms of sodium are present in the sample?
Given Ksp {Fe(OH)2}= 1.6x10-14 and Kb(NH3)=1.8X10-5. What concentration of ammonia is necessary to start to precipitate ferrous hydroxide {Fe(OH)2} from a solution of 0.0030M FeCl2
The Ksp for PbBr2 = 8.9 x 10^-6. Calculate the molar solubility of this compound on a .20M Pb(NO3)2.
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
what is the volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 ml.
If 0.80 g of a gas occupies 295 mL at 25C and 680 mm Hg of pressure what is the molar mass of the gas?
Boron often forms compounds that do not comply with the octet rule that are termed electron deficient. BF3, whose structure is shown below on the left, is an example of an electron deficient compound.
What is the concentration of unknown acid solution? Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
Consider the reaction Cu2S + O2 → 2Cu + SO2. If 55.0 grams of Cu2S is heated in excess O2, what is the mass of Cu that can be produced?
Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
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