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If the mass of an object is 15 grams then determine the relative precision and accuracy for the following sets of measurements
1. 15.1 g, 15.2 g, 15.1g, 15.1 g2. 16 g, 14 g, 14 g, 16 g3. 19.1 g, 16.0 g, 22.4 g, 23.8 g4. 15.1 g, 14.9 g, 15.0 g, 15.0 g
find the vapor pressure of a water solution in which the mole fraction HgCI2 (a nonvolatile solute) is 0.163 at 25.
Determine if the following solution is acidic, basic or neutral and then calculate the pH of each. Assume T = 25°C.
A backpacker wants to carry enough fuel to heat 2.2 kg of water from 30 C degree to 100.0 C degree. If the fuel he carries produces 36 kJ of heat per gram when it burns
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
what happened when the isolated fraction, floating on top of the solution,
Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Periodic Table.
which observed color band corresponds to the largest energy difference between levels and which is the smallest?
Calculate the minimum amount of dichloromethnae required to extract 99% of the 60 mg of caffeine dissolved in 50mL of tea in one extraction.
Use this ratio and that you collected 11 mg of 4-bromonitrobenzene to estimate the experimental yield of mononitration in the reaction. What errors are there in using this method to calculate the extent of mononitration
Draw the Lewis Structure for C3H6O (non-central atom type.) (There are five isomeric structures. Draw any three.)
Assuming a 70.% yield in the overall reaction, what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 9.9 *10^4 kg of coal that is 0.33 mass % sulfur?
If a saturated solution of silver nitrate at 20 degrees celsius contains 216g AgNO3 per 100g of water, what mass of water could contain 725g of this solute at the same temperature.
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