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An a1.803-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than170°C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 1.426 g. Calculate the percent by mass of water in the hydrated calcium sulfate salt.
Iron metal can be produced in a blast furnace through a complex series of reactions involving reduction of iron(III) oxide with carbon monoxide.overall: iron(III)oxide + carbon monoxide => iron + carbon dioxideUse the equations below to calculate
How many mL of 0.525M calcium chloride are needed to obtain 5.00x10 22 chloride ions.
Propose a reasonable reaction mechanism for the sodium hypochlorite oxidation of 3-heptanol. Give the IUPAC name of the expected product. What other oxidizing agents may be used to carry out this oxidation
Define the monobromination of isobutylcyclopropane. Illustrate all six isomers of the product and circle the Br of any which involve a tertiary bromide.
step by step Mechanism for the reaction of butanal with methanol under acid catalyzed conditions?
calculate the grams of solute needed to prepare each of the following solutions: a)2.00 L of a 5.00 M NaOH solution. b) 325 mL of a .100 M CaCl2 solution. c) 15.0 mL of a .500 M MiNO3 solution.
State a 0.150 M solution of an enantiomerically pure chiral compound D has an observed rotation of +0.14 in a 1-dm sample container. The molar mass of compound is 149.0 g/mol. Define the specific rotation of D
Why is the boiling point of a cyclohexene and water mixture less than 83 degrees, the boiling point of cyclohexene
question calculate the standard emf at 25degc of the propane fuel cell given that delta gdeg formation for propane
In countries where potassium iodide is added to salt, iodine deficiency or goiter has been almost completely eliminated. The recommended daily allowance (RDA) for iodine is 150 pg/day.
Why does BrO2 have a free radical? explain the bonding that happen, and why it happens. Why does NO have a free radical? I know it's because there in one unpaired electron
Kc for the reaction below at 25°C is 4.8 x 10-6. Calculate the equilibrium concentration (mol/L) of Cl2(g) if the initial concentration of ICl(g) is 1.33 mol/L. There is no I2 or Cl2 initially present.
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