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How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 63.0 mL of 0.610 M CuSO4 solution.
A 15.0 mg sample of a protein is dissolved in water to make 27.0 ml of solution. The osmotic pressure of the solution is 0.56 torr at 25 C. What is the molar mass of the protein?
A gas sample is held at constant pressure. The gas occupies 3.26L of volume when the temperature is 51.6 F . Determine the temprature at which the voloume of the gas is 3.45 L.
Calculate [CO32- ] in a 0.025 M solution of CO2 in water (H2CO3). If all the CO32- in this solution comes from the reaction shown below, what percentage of the H+ ions in the solution is a result of the dissociation of HCO3‾?
What is the volume in centimeters cubed of a marble with the diameter of 1.5 cm? Use the formula Volume = 4/3 pi x (radius)3.
The resulting equilibrium solution has a pH of 10.21. What is the Ksp of the salt at 22 °C?
A 2.30-g sample of a large biomolecule was dissolved in 16.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C.
There is 12.0 g CCl3F in a 1.1 L container at 856 torr and 300 K. What is the mass of the liquid left over?
when sodium azide , NaN3 , is activated in an automobile air bag , nitrogen gas and solid sodium are produced . if 0.0500 moles of NaN3 react , what mass , in grams , of nitrogen would result ?
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
used to fill a weather balloon in order to lift equipment into the stratosphere. To what maximum pressure (in atm) could a 271 L balloon be filled?
formulate a complete mechanism for the thiamine-catalyzed conversion of benzaldehyde to benzoin
If 156 mL of wet H2 is collected over water at 24C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
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