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Nicotine is a poisonous, addictive compound found in tobacco. A sample of nicotine contains 6.16 mmol C, 8.56 mmol H, and 1.23 mmol N ( mmol = millimol = 10-3 mol). What is the empirical formula of nicotine?
A 326 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 640. mmHg. Calculate the moles of Ar present.
Hydrogen was cooled from 150 c to 50 c. It's new volume is 75 ml. What was the original volume?
A 91 gram solution of silver nitrate contains 8 grams of AgNO3. What is the percent by mass of silver nitrate in this solution.
Divers experience a problem known as the bends when they come up to the surface too fast. Write an essay linking this phenomenon with solubility.
if a sample of 2.63 L of neon is collected at 730 torr and 26 degrees C, what volume will the gas occupy at 1.10 atm and 10 degrees C?
determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;
A mass of 48.5 g of a certain substance can be dissolved in 29.1 cm3 of water at 20 Degree Celius. Calculate the solubility of this substance per gram of water at the same temperature.
Assume that fructose is a molecular solid and does not ionize when it dissolves in water.
what is the molar concentrations for those two. The solution volumes are additive. Thank you so much I can't figure this out and I've been looking at it for 2 hours. I need it for my lab report.
Silver has two naturally-occurring isotopes with masses of 106.905092 amu and 108.904756 amu. What are the percent abundances of each isotope, respectively?
If the pressure exerted by ozone, O3, in the stratosphere is 3.0*10^-3 atm and the temperature is 250 K, how many ozone molecules are in a liter?
Write molecular, total ionic, and net ionic equations for the reaction of AgNO3 and NaCl (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)
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