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Describe the outcome that would be expected from Rutherford's experiment if the charge on the alpha particles had remained the same but the nucleus was negatively charged. If the nucleus were neutral, what would have been the outcome?
Complete the following table by calculating the missing entries. In each case indicate whether the solution is acidic or basic. pH pOH [H+] [OH -] acidic or basic
What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.507 mol of NaA in 2.00L of solution? The dissociation constant Ka of Ha is 5.66 x 10^-7.
Determine How much heat energy, is needed to convert 64.0 grams of ice at -18.0 degrees Celsius to H 2 O at 25.0 Normal Temperature ? express your answer in kilojoules
If 28.0 mL of .150 M HCL is needed to neutralize all the NH3 from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
calculate the equilibrium concentrations of h2o co2 and h2 in a reaction mixture obtained by heating 6.00 of steam and
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.
10 g of potassium chlorate, KClO3 is decomposed producing 3.915576 g of oxygen gas and 6.083363 g of potassium chloride, KCl: 2KClO3 + heat -> 2KCl + 3O2. Based on this information, what is the GMW of the oxygen produce
find the of X-281, you prepare a 0.075 test solution of X-281. The pH of the solution is determined to be 3.00. What is the of X-281?
You are designing a drier that must evaporate 200 lb/h of H2O from sludge by using air. Air at 70°F and 50% relative humidity is drawn into the drier and it leaves at 140F and 70% relative humidity. How much volume of dry air needs to be used for ..
In a vessel with a volume 3 m^3 you put 0.03m^3 of liquid water and 2.97m^3 of water vapor so the pressure is 101.33 kPa.
What is the coefficient of the permanganate ion when the following equation is balanced?
What volume (in milliliters) of 0.250 M NaOH should be added to a 0.120 L solution of 0.023 M glycine hydrochloride
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