Density of an object
What is the density of an object having the mass of 8.09 an volume of 25 cm3
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Determine the theoretical and percent yields of ethanol if 684g sucrose undergoes fermentation and 349g ethanol is obtained?
How much heat (in kJ) is required to warm 12.0 g of ice, initially at -13.0 degree celcious, to steam at 114.0 degree celcious? The heat capacity of ice is 2.09 J/g * degree celcious and that of steam is 2.01 J/g * degree celcious.
How many grams of KHP are needed to exactly neutralize 27.4 mL of a 0.235 M potassium hydroxide solution?
A volume of 200mLK of nitrogen is collected over water at a temperture of 24 degrees celcius and the atmospheric pressure of 100 kPa. What will be the volume of dry nitrogen at 24 degrees celcius and 125 kPa?
What are physical challenges of creating and moving one mole of a common household item from the eastern to the western coast of the united states.
Calculate the amount of CaCl2 in grams that would have to be dissolved in 100ml of solution to produce a solution with an osmotic presure of 300mOsmola assuming that the solute is fully ionised.
if the freezing point of a 0.107 m CH3COOH solution is -0.200°C, calculate the percent of the acid that has undergone ionization.
Calculate the percentage (by weight) of oxygen in the product formed when a 2.60-g sample of selenium combines with oxygen to give 4.18 g of a pure compound.
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