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A compound consist of 40.00% carbon, 6.71% hydrogen and 53.29% oxygen and has a molecular mass of 180+- 1g/mole. Determine the empirical and molecular formulas of the compound.
a student pumped some helium gas into a balloon. when this balloon was connected to an open ended U-tube containing some oil (density=9.18 g cm-3 the oil was displaced 112 mm towards the atmosphere. what is the pressure of the helium inside this b..
What is the most important type of intermolecular attractive force that operate in each
How much heat is released when 25mL of 0.10 M NaOH reacts with 50 mL of 0.10 M HCl?
Based on the procedure that you used in this experiment and using the same molar quantaties of reactants, develop a procedure that would be suitable for the preparation of isobutyl propionate.
Acetone (nail polish remover) has a density of 0.7857 g/cm^3. a. What is the mass, in g, of 28.56 mL of acetone? b. What is the volume, in mL, of 6.54 g of acetone?
how many grams of lead chromate form when a 1.00g sample of Pb(NO3)2 is added to 25.0 mL of 1.00 M K2CrO4 solution
The major isotopes of tungsten are 182W (26.32%), 183W (14.31%), 184W (30.67%), and 186W (28.62%). What is the atomic weight of W?
What is the molar concentration of Br^- ions in a 0.235 M aqueous solution of FeBr3, assuming complete dissociation?
Draw the organic product formed when the structure shown below undergoes
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees C before the solution becomes saturated
Octane has a density of 0.692g/mL at 20 C. How many grams of O2 are required to burn 1.00 gal of C8H18?
Consider a glass of 171 mL of water at 29°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
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