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Calculate the energy of electron of wavelength 0.3 nm in Joules and electron volts?
What is the minimum volume of 4.5M {\rm HCl} required to completely dissolve 16.0g of magnesium metal
How do they satisfy their electron requirements
How much of each component would you need to make a 0.5 M sodium phosphate buffer containing 0.5 M KCl and 0.05% sodium azide, pH 8.0?
The relative humidity of air is equal to the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same temperature
Calculate its empirical formula and What is its molecular formula given that its molar mass is about 486g?
a 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0degc. upon cooling
carbon monoxide is a common pollutant in urban environments. on one particular day the air contains 5.5 mg of carbon
solution if its conjugate acid. What is the pH of this combined solution? Always give two numbers after the decimal place
How many grams of a sugar (MW 180 g/mol) must be dissolved in 50 mL of aqueous solution to produce an osmotic pressure of 250 toor. The sugar does not dissociate.
Question- A water with a calcium concentration of (Ca2+) = 80mg/L is in contact with the mineral fluorite (CaF2). Calculate the solubility of fluorite at a temperature T=25°C. pKs of fluorite is 10.96 at 25°C.
The molar heat capacity of SO2 is given by the following equation: Cpm= 3.093 + 6.967x10^-3 T/K -45.81x10^-7 T^2/k^2 + 1.035x10^-9 T^3/K^3. Calculate delta S for the heating of 1 mol of SO2(g) from 75C to 1350C at a constant pressure of 1 bar
How would your calculated value of Kc compare to the actual value if the determination of absorbance were done on a solution that had been placed in a cell that was wet on the inside with rinse water. Explain.
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