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Concentrated HCl is a 12.0 M solution of HCl in water. How many milliliters of concentrated HCl must be diluted to 250 mL so that the resulting solution is 0.0500 M in HCl?
The addition of a crystal of sodium chlorate to a sodium chlorate solution causes additional crystals of sodium chlorate to precipitate. Will the solution be saturated, unsaturated, or supersaturated?
A compound is found to be 74.03% C, 8.70% H, and 17.27% N. The molar mass of the compound is 162.23 g/mol. Find the empirical formula and the molecular formula of the compound?
Describe how you would prepare the following aqueous solution: 230 g of a solution that is 0.60 molal Na2CO3 starting with the solid solute.
What is the pH of the solution when 50 grams of Ca(OH)2 was added to 1 liter of water? Ksp of Ca(OH)2 = 6.5 x 10^-6
Determine the empirical formula of each of the following compounds. Type your answer using the format CH4 for CH4 and list the elements in the same order as they are mentioned in the problem.
given that the density of elemental mercury is 13.534g/mL, how many atoms of mercury are contained in 1.500mL of element?
what hybrid orbitals are used about the central atom of each of the angles.
Which of the following is the strongest oxidizing agent and which one is the weakest in acidic solution: Br2, H2O2, Zn, Cr2O7^2-
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction: PCl5(g) ?PCl3(g) + Cl2(g)
A 4.50-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
A chemist prepares a sample of hydrogen bromide and finds that it occupies 252 mL at 70C and 464 Torr. What volume would it occupy at 0C at the same pressure.
how many moles of excess reactant are present when 366 mL of .206 M sulfuric acid reacts with .596 L of .172 M sodium hydroxide to form water and aqueous sodium sulfate
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