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1) Estimate the magnitude of the absoulte error and percent error in the measured sample volumes. Compare those errors to the errors that occur when measuring volumes of approximately 8mL, as is normally done in this experiment. Assume that the graduated cylinder used to measure all of the volumes has 0.1-mL graduations, 2) Based on your answer to (1), would you be more or less confident about your density measurement if you used the smaller sample volume, rather than the normal 8-mL sample? Breifly explain
The following reaction takes place in a sealed 40.0-L container at a temp of 120 degrees C 4NH 3(G) + 5 O2 (g) --> 4NO (g) + 6H2O (G)
Determine what volume of 1.0 mol/L solution of Copper monosulfide can be made from 23.9 grams of Copper monosulfide?
Hydrogen bonds a) play an important role in the solvent properties of water b) are not involved in protein structure c) play a role in the properties of DNA, but not of RNA d) give water a lower boiling point than expected 44
The density of mercury is 13.595 g cm -3 . What will be this value in SI units? Give the SI units and their symbols for the following physical quantities:
what are the H3O+ and OH- concentrarions in a 125 mL solution prepared with 0.100 mol pf NaOH and water?
calculate the concentrations of all species in a .890 m sodium sulfite solution. the ionization constants for sulfurous acid are ka1= 1.4x10^-2 and ka2=6.3x10^-8
Fumaric acid, which occurs in many plants, contains 41.4% C, 3.47% H, and 55.1% O by mass. A 0.5 mol sample of this compound has a mass of 58.0 g.
2 NaClO3 2 -> NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 639 g of NaClO3.
A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
If I add 1.65 L of water to 112 grams of sodium acetate...What is the molality of NaC2H3O2 in this solution?
4.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 5.00 mL of 2.0E-3 M potassium thiocyanate solution, 6.00 mL of 0.500 M nitric acid solution
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