How many grams of oxygen reacted with the phosphorus
When .192 g of phosphorus reacts with oxygen, .440 g of a white oxide is formed. How many grams of oxygen reacted with the phosphorus?
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In a certain experiment, 28.0 mL of 0.250 M HNO3 and 53.0 mL of 0.320 M KOH are mixed. Calculate the amount of water formed in the resulting reaction. What is the concentration of H+ or OH- ions in excess after the reaction goes to completion?
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr. what is the partial pressure of gas collected ?
The concentrations of both H2(g) and F2(g) are found to be 0.0050 M. What is the concentration of HF(g) in the equilibrium system under these conditions?
A solution of ammonia and water contains 3.20×1025 water molecules and 8.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of the solution will be needed to produce 425ml of a solution that has a concentration of Na+ ions of 0.700 ?
What is the molality of a solution of glucose that contains 48.0 g of C6H12O6 dissolved in 410.0 g of water? Use molar masses with at least as many significant figures as the data given.
Calculate the molarity of the solution. How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion?
What mass of K2CO3 is required to clean up a spill of 489 ml of 3.50 M HCl if HCl(aq) reacts with K2CO3 according to:
If 24.6 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 301 Kelvin and 1.01 atmospheres? Show all of the work used to solve this problem.
What is the total pressure in of the mixture after it is placed in a container one-half the volume of the original container? (Temperature remains constant.)
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