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Consider the following experimental data set obtained for the density of a metal object as measured by three students in the laboratory: 6.02g/mL, 6.04g/mL, and 6.05g/mL. The actual density of the object is known to be 5.00g/mL.
1) Calculate the absolute and relative standard deviation for the above data set.
2) Determine the significance of the numerical value for the relative standard deviation calculated in the first question.
Carbon disulfide is a foul-smelling solvent that dissolves sulfur and other nonpolar substances. It can be made by heating sulfur in an atmosphere of methane.
A solution of sodium chloride contains 502 g NaCI in 900 grams of water. what is the concentration of the colution in parts of a million (ppm)? Round to the nearest tens place. don't forget the unit.
The united states food and drug administration requires that any product called vinegar contain at least 4% of weight by acetic acid .Assuming that the density of vinegar is the same as water, does this satisfy the FDA requirement to be called vin..
The normal melting points and boiling points of xenon are -112 deg. Celsius and -107 deg. Celsius, respectively. The Xe triple point is at -121 deg. Celsius and 282 torr, and its critical point is at 16.6 deg. C and 57.6 atm.
what is the ph solution obtained by mixing 25.00 ml of 0.250 ml HCl and 25.00ml of 0.125M NaOH
For the oxidation-reduction reaction equation given here, 2Na + S --> Na2S, indicate how many electrons are transferred in the formation of one formula unit of product.
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
If one mole of the following compounds were each placed into separate beakers containing the same amount of water, rank the Cl?(aq) concentrations from highest to lowest
Explain how the formation of a soap ‘micelle' helps remove dirt and oil in an aqueous environment.
What is the composition in mole fractions of the gas mixture that is expelled? The solubilities of CH4 and C2H6 at 20 degrees celcius and 1 atm are .0175 g/L H20 and .059g/L H2O, respectively.
Despite its apparent unsaturation, no hydrogen was absorbed on catalytic reduction over a Pd/C catalyst. On treatment of A with dilute H2SO4, dehydration occurred and an optically inactive alkene B, C11H14 was produced as the major product.
the solubility of silver sulfate in water is 0.223 wv at 35degc. calculate the solubility product of this salt at this
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