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a student titrates 0.738 grams of an unknown solid, weak acid with 0.1027 Molarity NaOH. What is the molecular weight of the unknown solid, weak acid?
What is the maximum amount of P2O5 that can theoretically be made from 186 g P4 and excess oxygen?
A mixture of 40 Ml of methyl butyrate (MW-102.1 g/mol,d-0.89 g/mL) and 10 mL butyric acid (MW=88.1 g/mol, d=0.96 g/ML) is distilled.
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
A student wants to conduct an experiment requiring 500 ml of a 3 M sulfuric acid 18 M concentrated sulfuric acid is available. How could the student prepare the desired solution
An industrial hygiene survey has been conducted to determine whether exposure of workers to ethyl benzene (molecular weight 106) exceeded the OSHA PEL of 100 ppm.
H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14. Then Determine K for the reaction
The concentration of potassium ions inside a nerve cell is around 20 to 30 times that outside the cell. Calculate the potential difference between inside
What is the chemical make-up of natural cleaners? How do these products compare to traditional cleaners? Are the active ingredients the same or different?
Octane has a density of 0.692 g/mL at 20 degrees Celsius. How many grams of O2 are required to burn 1.00 gal of C8H18?
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette
Calculate the pH of a solution containing 25.00 mL of 0.12M formic acid (Ka=1.7x10^-4) to which the following amounts of 0.10M NaOH have been added:
how many moles of calcium ions are in 1L of a 2.0M solution of CaCl2
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