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If you are limited to two significant figures in your determination of the molar mass, what could you do to increase the precision of the experiment to 3 sig fig. What consequences would this have?
If you remove a piece of paper with a secret message written with lemon juice from a tincture iodine bath and let it dry, what will happen over a long period of time? Explain why?
A 1.33 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid.
Which compound of each set has the highest and lowest boiling point? Decribe the factors that mitigate these values. A) CH4, CH3CH3, CH3CH2CH3, CH3CH2CH2CH3 B) CH3Cl, CH2Cl2, CHCl3, CCl4
in the reaction a rarr products a is found to be 0.490 m at t72.0 s and 0.474 m at t82.6 s.what is the average rate of
Draw the two possible products of the reaction between benzaldehyde and methylethylketone.
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = ?26.434 kJ/g. When a 2.088 g sample of C6H5COOH..
Calculate the concentrations of all species in a 0.530 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10-2 and Ka2 = 6.3× 10-8.
At a certain temperature, Keq = 150. Calculate the concentrations of Fe 3+ and SCN- in a solution that has an equilibrium FeSCN2+ concentration of 4.5 X 10^-5 M using the equation . Assume the equilibrium concentrations of Fe3+ and SCN- are equal.
why metal sulfide compounds can only form after the hydrothermal fluids escape into the open seawater.
a beaker with 115 of an acetic acid buffer with a ph of 5.00 is sitting on a benchtop. the total molarity of acid and
What is the ph of a solution that results from diluting .30 mol acetic acid and .20 mol sodium acetate with water to a volume
A 4.9 M magnesium chloride solution needs to be created. What is the least amount of grams of magnesium chloride that I can use to create this solution.
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