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The NaOH catalyst solution is prepared by dissolving 0.4 g of NaOH in 4.0 mL of water then adding 3.0 mL of 95% ethanol. how many moles of NaOH, mL of water and ml of ethanol in 3 mL?
What is Nitroglycerin's molar mass if the addition of 0.454 g of nitroglycerin to 100.0 g of benzene changes the solution's vapor pressure to 94.85 mm Hg?
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream
Consider a rigid, adiabatic, impermeable cylinder (i.e., a closed isolated system) that consists of two chambers (i.e., simple systems) that are separated by a wall that is permeable
Calculate the Z for the fourth ionization of Ti when it requires 425.6 kJ of energy to ionize 0.185 moles of Ti^3+ to Ti^4+ ( The electron being removed is in the outermost valence orbital of Ti^3+ ground state, therefore n = 3)
Stoichiometry of reactions, When a mole of C7H16 is combusted, it reacts with 11 moles of O2. How many moles of CO2 product are obtained? How many moles of H2O product are obtained?
Aspartame (C14H18N2O5) is a solid used as an artificial sweetener. Its combustion produces carbon dioxide gas, liquid water, and nitrogen gas. What is the coefficient of aspartame in the balanced equation for the reaction? (Balance the equation wi..
if the syinge colume had been incorrectly read, giving a calculated system volume of 25.6 mL, what would have been the percent error in the calculated value of R?
The molecular weight of vincristine, a pharmaceutical drug, is 923.04. It is supplied in 1 mg per vial. You want to treat your culture cells with a final concentration of 5 hM vincristine and will need 30 ml of cells for your experiment
What is the percent yield of a reaction in which 228 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 129 g HCl?
At 0.0oC, if the volume of air is 3.4 mL and the pressure of the atmosphere that day is 695 mmHg, what is the number of moles of air?
the temperature was returned to the origenal value what would be the partial pressure of each gas be?
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 66.0 g of ZnCl2?
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