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If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard? Parts per billion is defined on a mass basis as ppb = g solute/g solution 10^9
50.50 mL of 0.116 M HF is titrated with 0.1200 M NaOH. How many mL of the base are required to reach the equivalence point? (Ka for HF is 6.8 x 10-4)
what is the function of the baso4 solution as a traditional method of measuring a knife wound in a homicide victims
A 155 g sample of an unknown substance was heated from 25.0°C to 40.0°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?
A 500 ml volume of helium gas is at a pressure of 750 mm Hg and has a temperature of 30 degrees celcius. What is the volume of the same gas at STP?
Draw the structure of the product(s) of the reaction between (S)-3-methylhexan-2-one and methylmagnesium bromide, followed by acidification. Use wedge and dash bonds to indicate stereochemistry
According to the general trend in electron affinities, which group (or family) of elements tend to form the most stable anions
How many grams of C2H4 are needed to react with 0.133 moles of H2O?
How much H2O is produced when 20000 g of C2H2 burns completely? Answer in units of grams
Consider the same dilution above for an SN1 reaction. Would the time required for 95% for the starting material to react change as a result of this dilution?
A patient needs to take 375 of ibuprofen twice daily. The pills in the bottle are each 250. . How many pills does the patient need to take each time she wants the 375 dosage? Assume that these pills are scored and can be cut in half if necessary.
Carbon tetrachloride, CCl4, is nonpolar. What forces hold the molecules together?
Consider an ideal gas with a volume of V1. To what volume would you need to compress the gas to double its pressure?
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