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If 2.0 grams of calcium chloride react with 3.5 grams of sodium hydroxide in a double replacement what is the balanced equation
A 20.0mL sample of 0.20 M sodium acetate is titrated with 0.11 MHCl (aq). Explain what is the pH after the addition of 50.0mL HCl (aq). (Kbof CH3CO2-= 5.6 ´ 10-10)
A grad student made the news for all the WRONG reasons a few years ago when he synthesized a "nickel hydrazine perchlorate" compound (but didn't give any more detailed information) on a scale 1000 times larger than what his lab advisor told him to..
What is the density of a metal that is placed in a graduated cylinder that contained 15.0mL of water, resulting in a final volume of 45.6 mL and weighs 78.38g
An unknown gas composed of a diatomic molecule effuses at a rate that is only 0.355 times as fast as that of oxygen gas at the same temperature.
Caffeine has a distrubution coefficient of 8.4 for methylene chloride/ water. How much caffiene will be extracted from a 200 mL cup of Turkish coffee (250 mg caffeiene) by 100 mL of methylene chloride?
What is the most common chemical method for removing H30+ ions in aqueous solution? Net equation for the solution?
A small hot air balloon is filled with 1.02 x 10^6 L of air (d=1.20 g/L). As the air in the balloon is heated, it expands to 1.13 x 10^6 L. What is the density of the heated air in the balloon
zn s 2 hclaq zncl2aq h2ga student needs to react 0.228 mol zn with hydrochloric acid. calculate the minimum number of
part 1 how much in grams of a 18.4g sample of ccl4 iscarbon?part 2 a sample of a compound has the following
what is the value for the standard internal energy of formation for acetyl chloride ch3cocl
if 100 mL of 0.800 M Na2SO4 is added to 200 mL of 1.20 M NaCl, what is the concentration of Na ions in the final solution?
Fluorine has an average atomic mass of 18.998403 u, and chlorine has an average atomic mass of 35.453 u. How many grams of chlorine contain the same number of atoms as 1.00 g of fluorine
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