Describe the basic steps involved in a gravimetric analysis
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In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced.
How many grams of magnesium chloride could be formed from the rraction of 6.82 grams of magnesium with excess HCl?
Solution contains FeCl3 = 0.015 M and NaOH = 0.010 M. Solution of FeCl3(aq) + 3NaOH(aq) -> Fe(OH)3(S) + 3NaCl(aq) gives precipitate Fe(OH)3. Qsp = [Fe3+] [OH]^3 = 1.5 * 10^-8 and Ksp of Fe(OH)3 = 1.6*10^-39.
Sulfuric acid reacts with aluminum hydroxide by double replacement. Determine the mass of each product formed. Assume 100% yield.
Describe the basic steps involved in a gravimetric analysis. How does this procedure help us determine the identity of a compound or the purity of a compound if its formula is unknown?
The gas pressure measured at 20.0 degrees C is 1.95 atm. Assuming ideal gas behavior, how many grams of ammonia are in the flask?
What mass of water would you need to evaporate from your skin in order to dissipate 1.7 x 10^5 J of heat from your body? H2O(l) -> H2O(g) delta H vaporation = 40.7 KJ/mol.
Calculate the ΔH for the reaction above using the data provided. (Hint: you need to calculate q rxn then convert it into kJ/mole)
A balloon filled with 27.3 mol helium has a volume of 612. L at 0.0°C and 1.00 atm pressure. The temperature of the balloon is increased to 33.0°C as it expands to a volume of 686. L, the pressure remaining constant.
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