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How many grams of water are required to dissolve 24g od KNO3 at 100 degrees celsius?
Calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for each.
An aerosol spray can with a volume of 270 ml contains 3.0 g of propane gas as propellant. what is the pressure in atms if the can is 20 degrees celsius?
what mass of solid La(IO3)3 is formed when 50 ml of 0.250 M La are mixed with 75.0 ml of 0.302 M IO3-
Using a sample of water with a mass of 46.0 grams at a temperature of -58. Degree Celsius calculates how many Joules of energy (E) are necessary to heat the ice to 0 degree Celsius. Specific heat of ice= 2.1 J/g C).
occurring at 800 K and 1atm. The initial mixture contains 1 mol of SO2 and 0.5 mol of O2. The reaction mixture can be considered to be an ideal gas.
Compute the reactor volume and space time to get 90% conversion in a PFR and in a CSTR
what mass of (NH4)2SO4 must be dissolved in 0.100L of 0.350M NH3 to produce a buffer solution with pH 10.05?
A 10.4-g sample of CaCl2 is dissolved in 107 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
The Ksp for Al(OH)3 is 2 x 10-32. At what pH will a 0.2 M Al3+ solution begin to show precipitation of Al(OH)3.
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 143 mL of ethanol.
A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron.
The concentration of potassium ions inside a nerve cell is around 20 to 30 times that outside the cell. Calculate the potential difference between inside
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