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How many quartz of ethylene glycol, C2H6O2 (density = 1.116 g/mL). Will have to be added to 5 gal of water (density = 1 g/mL) to protect an automobile radiator down to a temperature of-10 oF? Ethylene glycol is a permanent antifreeze agent.
The ground water in Pherric, New Mexico contains 1.80 mg/L of iron as Fe+3. What pH is required to precipitate all but 0.30 mg/L of the iron as Fe(OH)3 at 25oC?
Diamond has a face-centered cubic unit cell, with four more C atoms in tetrahedral holes within the cell. Densities of diamonds vary from 3.01 g/cm3 to 3.52 g/cm3 because C atoms are missing from some holes.
Why might this fire rekindle days later as someone tries to remove the residue with water? What chemical process is involved here?
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
how many heat energy is required to heat a cup of water (195.0) from room temperature (25.0C) to boiling (100.0C).
A 0.8612 g sample of a mixture consisting of NaBr, NaI, and NaNO3 was analyzed by adding AgNO3 to precipitate the Br and I, yielding a 1.0816g mixture of AgBr and AgI.
How many grams of ammonium sulfate are needed to make 0.3500 L solution at a concentration of 5.000M.
What are the main mononitro products of the nitration of the following compounds - Write structural formulas for the compounds
72.0 mL of a 1.40 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 161 mL of water. What is the final concentration.
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
A student standardized her I2 solution by preparing a solution of 0.0450 g of ascorbic acid (vitamin C) in a 100 mL volumetric flask. She titrated several 10.00 mL samples of the Vitamin C solution and found an average of 24.95 mL of I2 solution
Thermochemistry and Periodic Properties of Elements. State which atom is larger according to periodic trends. Explain the difference for each of the pairs.
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