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Explain what percentage of the total phosphorus in a phosphoric acid solution adjusted to a pH of 12.00 would be in the form of PO4-3?1. 100%2. 10%3. 40%4. 26%5. 70%
An experiment shows that a 250 mL gas sample has a mass of 0.430 g at a pressure of 728 mmHg and a temperature of 26 C. What is the molar mass of the gas?
The solublity of acetanilide in hot water is 5.5 g/100mL at 100 degee centigrade and its solublity in cold water is .53g/100mL at 0 degree centigrade. what would be the maximum theoretical percent recovery from the crystalliztion of 2.5 g of aceta..
how many kilocalories are needed to heat the 1700kg of water from 56 degrees fahrenheit to 167 degrees fahrenheit?
Bromocresol green, Ka = 2.0x10^-5, is yellow in its protonated form (HX) and blue in its ionized form (X^-). At what pH will bromocresol green be a perfect green color
A 2.00-L flask is filled with propane gas (C3H8) at 1.00 atm and -15.0 degree C. What is the mass of the propane in the flask?
How many molecules of carbon dioxide will be formed if 4.89 g of propane, C3H8, is burned with excess oxygen. Correct Answer : 2.00 × 1023 molecules
compute the change in temperature for 4.50 grams of calcium chloride cacl2 dissolved in 90.0 ml of water h2o. assume
What is the mass percent of Ca in the alloy. The unbalanced equations are given below. (Hint: Let x = mass of Ca in the alloy in grams
if one started with 13.9 mmol of sodium benzoate, how many grams of benzoic acid should be formed?
An aqueous solution containing 16.2g of an unknown molecular (nonelectrolyte) compound in 102.0g of water was found to have a freezing point of -2.0C.
if the molar mass of the hydrocarbon is 126.3 gmol what is the molecular formula of the
the common pain relievers asprin c9h8o4 acetaminophen c8h9no2 and naproxen sodium c14h13o3na are all available in
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