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silver has only two naturally occurring isotopes 107ag with a mass of 106.90509amu and an abundance of 51.84% and 109ag with a mass of 108.9047 amu calculate the atomic mass of silver.
hydrochloric acid for neutralization. A 12.0mL volume of a phosphoric acid solution requires 35.1mL of the sodium hydroxide solution for complete neutralization.
A 1.00 g sample of D2O and H2O are reacted with CL2 and HCL and DCL are produced. Then they are diluted with H2O giving a volume of 1.00L. Then 25 mL of the solution are reacted with excess AgNO3 and 0.3800g AgCl precipitate formed.
I know it is a dilution problem but I am lost other than that. Please help. The concentrations and final volumes were given in a table and paired by the way.
The few gas analysis shows as carbon dioxide 14%, carbon monoxide 0.4%, oxygen 5.6% and nitrogen 80%. The air used has a dew point of 50°F. The barometer shows 29.9 inches of mercury. Calculate the dew point of the stack gas.
The data below were taken to calibrate the instrument. An unknown protein sample gave an absorbance of 0.867. Calculate the mass (micrograms) of protein in the unknown.
Determine the molarity of a saturated NaI Sodium iodide solution (aqueous) formed as twenty five degree Celsius
calculate the change in entropy when 25KJ of energy is transferred reversibly and isothermally as heat to a large block of iron at (a) 0C and (b) 100c.
For each of the following experimental or calculations errors, tell of the calculated value of R, writte if would be too high, too low or unchanged.
How many grams of CaCO3 are produced when you react 55.2 mL of 0.150 M Ca(NO3)2 with 0.655 g of Na2CO3? How many grams of Na2CO3 remain unreacted? How many grams of Ca(NO3)2 remain unreacted?
titration volume should be between 10 mL and 50 mL. What are the smallest (first answer box) and largest (second answer box) masses of formic acid that would give titration volumes within the limits above?
The equilibrium vapor pressure of liquid hydrogen at 16 K is 0.213 bar. The standard (1 bar) boiling point is 20.3 K. Use the Clausius-Clapeyron equation to estimate the enthalpy of vaporization of hydrogen
calculate the external pressure that must be applied to seawater, 1.14 M total ion concentration at 10 degrees celcius if the maximum concentration allowed in the product water is 166 mg/L
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