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The density of benzene at 25.0 degrees C is 0.879g/cm3. What is the volume in liters of 2.5 kg benzene?
How many milliliters of water must be added to a stock solution of 6.00 M HNO3 in order to prepare 500 mL of 0.200 M HNO3 by dilution.
Compute the a)molarity of the solution, b)molality of the solution, c) mole fraction of Ammonia.
An environmental chemist obtained a 200 mL sample of lake water believed to be cntaminated with a single monoprotic strong acid.
What is the geometry and hybridization of the carbonyl carbon in carboxylic acids and their derivatives.
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
The specific heat of fat is 0.45 cal/(g C) and the density of fat is 0.94g/cm^3 . How much energy (in calories) is needed to heat 10cm^3 of fat from room temperature (25 C) to its melting point (35 C).
.914g sample of stannous flouride gives a 1,078g precipitate of stannous phosphate. calculate the theoretcial yeild?
A solution containing 10.mmol of CO3^-2 and 5.0 mmol. Of HCO3- is titrated with 1.0M HCL What total volume of HCL must be added to reach the second equivalence point?
How much heat is required to warm 227 g of ice from -44.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
A situation with an industrial input of arsenic directly into the lake at 10kg/Day. The lake volume is 1.2 x 10^8 m^3, and the average depth is 10m.
Determine how many moles of SO 3 are formed if 12.24 moles of O 2 react with excess SO 2 ,? use the balance equation given as 2SO 2 (g)+O 2 (g)----> 2SO 3 (g)
Calculate concentration of NaClO solution from that equation and calculate How many grams of this nuclide in a sample of 4.00 g will remain after 112 years?
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