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The maximum acceptable concentration (MAC) of fluoride ions in drinking water is 1.5 ppm.
In Dublin, California, a malfunction occurred in the fluoridation equipment caused fluoride levels to rise as high as 200 ppm. This resulted in 23 people becoming ill.
During the malfunction, 628 kg of fluoride ions where injected into a storage tank of water.
Given that the resulting concentration was 200 ppm, calculate the volume, in ML, of the water storage tank.
Two solutions of an unknown slightly soluble salt, A(OH)2, were allowed to equilibriate- one at 25 degrees C, the other at 80 degrees C. A 15 mL aliquot of each solution is tiotrated with .200 M HCl. 8 mL of the acid is required to reach the endpo..
An infant's pulse rate is measured to be 133 +/- 7 beats/min. Explain what are the uncertainty as well as the percent uncertainty in this measurement
How many grams of of ethylene glycol are needed per kilogram of water to protect the radiator fluid against freezing down to -10C
Predict the stereochemistry of the major product in each case
The cell potential was measured to be 0.06800 V at 25 °C. By use of the Nernst equation, determine the concentration (M) of Pb2+ in the solution of Cell A.
What is the energy change when the temperature of 12.3 grams of solid tin is decreased from 38.1 C to 24.7 C
Question- The Nuclear mass of Fe-56 is 55.9207 amu. Calculate the binding energy per nucleon for Fe-56. (units J/nucleon)
A solution is .855% HNO3 by mass. Density of the solution is 1.01 g/mL. Find [H+], [OH-], and pH.
Refer to the periodic table and select the symbol of the element that fits each of the following descriptions: a) the group IVA/14 semimetal in the fourth period.
Sleeping pills often contain barbital, which is weakly acidic (pKa = 8.00). For analysis of the barbital content of a sleeping pill, a titration is carried out with strong base. It takes 12.00 mL of 0.200 M base to reach the stoichiometric point.
List possible manipulation errors that might contribute to the following errors in results
If 1.0 mL of vinegar needs 22.5 mL of 0.195 M NaOH to reach the equivalence point in the titration, what is the molarity of the original vinegar solution?
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