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Calculate the sodium ion concentration in a solution formed by diluting 35 ml of a .585 M sodium phosphate solution to a final volume of 145ml
Hydrochloric acid (HCl) reacts with sodium carbonate (Na_2CO_3), forming sodium chloride (NaCl), water (H_2O), and carbon dioxide (CO_2). This equation is balanced as written
assuming that the gas behaes ideally. Then repeat the calculation by using the van der Waals equation
when 2-propanol was used as the developing solvent, two substances moved with the solvent front (rf=1) during tlc analysis on a silica gel plate. can you conclude that they are identical? if not, what additional experiments would you perform
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
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..
vaillin used to flavor vanilla ice cream and other foods is the substance whose aroma the human nose detects in the
what is methanols vapor pressurenbspit boils atnbsp65.0 degc and has a heat of vaporization deltahvap 37.4 kjmol. at
The following reaction has achieved equilibrium. Predict the effect on the formation of phosphorous pentachloride (increase, decrease or no effect) for the stated changes to the system
Calcite (CaCO3) has two types of bond. What are the two types? Demonstrate which is the stronger by calculating the degree of ionic character of each bond
The reaction that occurs here is the reaction of iodide ions with peroxydisulfate ions to produce iodine molecules and sulfate ions. Write the balanced net ionic equation for this reaction.
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
determine the ph of 0.25 m hno2 nitrous acid solution it is given that ka4.5 x 10-4?determine the molecular formula of
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