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5 gram of solid calcium sulfate is added to 1 leter of pure water. what is the soncentration of dissolved sulfate once equilibrim is achieved
The solubility of KNO3 is 38 g/100 g H2O at 20 degrees Celsius and 1.50 times 100 g/100 g H2O at 70 degrees Celsius. A solution is prepared by mixing 45 g of KNO3 in 35 g H2O at 70 degrees Celsius. Will all of the potassium nitrate dissolve at 70 ..
25.0 mL of 1.50M LiOH are neutralized by 15.0mL of nitric acid. what is the molarity of HNO3?
How many moles and liters of gas would be produced by reacting 55.7 g of NaHCO3 with excess vinegar. Assume the reaction releases all the gas theoretically possible, and the reaction takes place at 22 C and 1 atm. NaHCO3(s) + CH3COOH(aq)-> CO2(g) ..
What mass of C4H6 in grams is consumed in the reaction below when 36.9 grams O2 (g) are also consumed?
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
Two compounds of nitrogen tetroxide(N2O4) and hydrazine(N2H4) are used as rocket fuels.When the two are mixed,they ignite and produce nitrogen gas and water.
What is the volume of 1.5 mol of nitrogen gas at 0.5 atm of pressure and 58 degrees celsius
RNAse is an enzyme that cleaves the P-O5\' bond in RNA. It has two His residues in the active site. Suggest a plausible explanation
Describe the preparation of 3 liters of a .2 m na-acetate buffer, ph 5.0, starting from solid sodium acetate trihydrate (mw 130) and a 1 M solution of acetic acid.
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 9.00 bar . The Henrys law constant for ammonia gas at 298 K is 58.0 M/atm
The half equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted.
How many grams of sodium lactate must be added to a 1.00L solution of .400M lactic acid to make a buffer with a pH of 3.7??
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