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Calculate the osmotic pressure (in torr) of 5.48 L of an aqueous 0.136 M solution at 25 celsius if the solute concerned is totally ionized into three ions (for example, it could be Na2SO4 or MgCI2).
A mixture of 0.152 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessal at 500K, producing a mixture of Co and CO2. The total pressure is 0.6879 atm. What is the partial pressure of CO?
When 157mg of dipentylamine was added to 122mg of benzoic acid and 2mL of water, a completely homogenous solution was formed. Draw the sturctures of the species present in the water.
The proper concentration for an intravenous NaCl solution is 0.90 g NaCl per 100 mL of water (sometimes refered to as 0.90% m/v).
A baseball weighs 220 g. Top speed for a professional pitcher is about 100 mph when he throws a fast ball. Find the de Broglie wavelength (in nm) associated
Is always a metal. Is called a catalyst. The magnesium acts as a reducing agent. How many electrons does each magnesium atom lose? Which family of elements in the periodic table contains the most powerful oxidizing agents?
0.5g KCl was dissolved in 100g water and the solution originally at 200C, froze at - 0.240C. Calculate the percentage ionization of salt. Kf per 1000g of water = 1.86K
50.00ml of BiO3- is titrated with 26.43ml 0.02982M Fe2+. What is the molar concentration of BiO3-? How many mg of NaBiO3 were in the 50.00ml sample? [BiO3-] = _______________ M mNaBiO3 = _______________ mg
What mass of NaOH (s) must be added to 1.0 L of 0.050 M NH3 to ensure that the percent ionization of NH3 is no greater than 0.0010%? Assume no volume change on addition of NaOH. Kb NH3=1.8 x10^-5
explain why ethanamine (ethylamine) initially forms a white precipitate when added to a solution of aqueous copper sulphate (CuSO4).
Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.921 amu. The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.
If 35.0 g each of iron and chlorine react, how much FeCl3 will be formed?
What is an alternative analytical procedure for determining the quantity of water
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