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A mixture of sodium salts may contain one or more of the anions(Cl-, I-, SO42-, NO32-,PO43-) . All of the salts are readily andcompletely soluble in cold water. Two samples of this aqueoussolution show no precipitate when AgNO3 orBaCl2 is added. What anions are shown to be conclusively present in the unknown solution? Which anions are shown to bedefinitely absent? For which anions are the tests insufficient toconfirm their presence or absence. Explain your logic for eachstep.
If the volume of the original sample in Part A ( P1= 722 torr, V1 = 34.0 L) changes to 57.0 L, without a change in the temperature or moles of gas molecules, what is the new pressure, P2
what mass of precipitate will form if 1.50 L of concentrated Pb(CLO3) is mixed with 0.550 L of 0.230 M NaI ? assume the reaction goes to completion.
Compound X has partition coefficient of 3 between ether and water. If 100 ml of 0.01 M aqueous solution of X is extracted with ether, then what fraction of X remains after
Give the formula of the compound formed from the following elements. (Type your answer using the format CO2 for CO2.) (a) sulfur and cesium (b) sulfur and barium (c) rubidium and bromine
Using the values for the heat of fusion, specific heat of water, and or heat vaporization, calculate the amount of heat energy in each of the following
Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. When 0.455g of Thyroxine is dissolve in 10.0g of benzene, the freezing point of the solutions depressed by 0.300C. What is th..
A glass vessel fitted with an on/off value has a mass of 337.428g when evacuated. When filled with Ar, it has a mass of 339.712g. When evacuated and refilled with a mixture of Ne and Ar, under the same conditions of temperature and pressure
What is the pH for the solution made from 11.10 mL of 0.278 M HCl solution mixed with 70.90 mL of 0.1300 M ammonia solution ? Note that the pKa for NH4+ is 9.241
Limonene (MW 136) is a pleasant smelling liquid found in lemon and orange peels. The bp of limonene is 175, but it co-distills with water at 97.5. If the vapor pressure of water at 97.5 is 690 mm Hg, what percentage of the steam-distillate is limo..
caproic acid contains carbon hydrogen and oxygen. combustion analysis of a 0.450g caproic acid sample gives 0.418g of
Solid strontium hydroxide is added to a solution of nitric acid. How many moles of strontium hydroxide are needed to react completely with 500. mL of 0.40 M nitric acid?
2) Calculate the concentration of an aqeuous solution of Ca(OH)2 pH of 12.05.
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