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What is your sampling rate in ml/min if you collected, over a four hour sample, 7500 ?g of carbon tetrachloride from a known concentration of 150 PPM? The molecular weight is 154g. please show all your steps
Aromatic Compounds :sample question, Both naphthalene and azulene have 10 pie electrons and are aromatic. Pentalene is apparently antiaromatic and is unstable even at -100 degrees C.
if it takes 6.02 kJ of heat energy to melt a mole of ice, how much heat is absorbed when 6.30 g of water melts?
Determine what is the exact volume of the 250-mL Erlenmeyer flask express your answer (in mL)?
An aqueous solution is 30.0 % by mass ammonia, NH3, and has a density of 0.892 g/mL.The mole fraction of ammonia in the solution is?
Molecular and ionic equations, What would be the proper balanced molecular and net ionic equations for each of these neutralization reactions?
What mass of PbCl2 is formed from mixing 0.334 L of 0.112 molar NaCl with 2.12 L of 0.0343 molar Pb(NO3)2?
How many grams of solute are needed to prepare 500.0 mL of a 0.375 M CH3OH solution.
How much heat is absorbed when 5.53 mol of NH4NO3 solid is dissolved in water? (Heat of soluton = 25.7 kJ/mol)
A sample of C3H8 Has 3.84X10^24 H atoms. a) how many carbons does the sample contain b) calculate the total mass of the sample
How many grams of dry NH4Cl need to be added to 1.80L of a 0.400M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.90? Kb for ammonia is 1.8*10^-5.
A solution is prepared by adding 1.10 g of solid NaCl to 50.0 mL of 0.100 M CaCl_2. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
A reaction mixture at 175 initially contains 522 torr of NO and 421 torr of O2. At equilibrium, the total pressure in the reaction mixture is 748 torr. Calculate Kp at this temperature.
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