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How many grams of asprin were lost in the washing process you used to purify your product, assuming you used 50mL if water for washing? The solubility of asprin in water is 0.33g per 100mL at room temperature.
calculate the mass of MgCO3 precipitated by mixing 10.0 mL of a 0.200 M Na2CO3 solution with 5.0 mL of a 0.0450 M Mg(NO3)2
the air in the laboratory was measured with a barometer to be 7.20 x 10 squared mm Hg. what is the laboratory air pressure in atm.
a mass of 48.5 g of a certain substance can be dissolved in 29.1 cm3 of water at 20 degree celius. calculate the
For a solution containing 0.0060 M calcium nitrate and 0.057 M nitric acid, calculate the activity of the calcium ion.
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
The energy available is given in the question along with the percent efficiency. Use these values to determine the energy
Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?
What is the de Broglie wavelength (in meters) of a mosquito weighing 1.50 mg and flying at 1.34 m/s?
Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n, l, ml, ms).
On being heated with potassium ethoxide in ethanol (70 degrees C), the deuterium-labeled alkyl bromide shown gave a mixture of 1-butene, cis-2-butene, and trans-2-butene. On the basis of your knowledge of the E2 mechanism, predict which alkene(s),..
Suppose you want to produce 1L of 3.50M aqueous solution of H2SO4. How many grams of solute are needed to make this solution.
The most important commercial process for converting N2 from the air into nitrogen-containing compounds is based on the reaction of N2 and H2 to form ammonia (NH3)
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