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How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 165 mL of ethanol? Density of ethanol is 0.789g/cm3 ?
mixture(O,H) is ignited with a spark and it reacts to form (H2O)liquid water. determine the temperature of water.
How many grams of MnSO4 can be prepared from the reaction of 15.0 g of KMnO4 with 22.6 g of H2SO3.
What does the volume correction constant (b) in the van der Waals equation represent? Why is b for helium small (b = 0.0238 L /?mol) compared to b for decane (C10H22, b = 0.3043).
3CuSO4 + 2Fe --> 3 Cu + Fe2(SO4)3 If you place .092 mol of iron filling in a solution containing .158 mol of CuSO4, what is the limiting reactant? How many moles of Cu will be formed.
What properties of soil and its components could be measured to determine whether two soil samples are consistent with having a common origin?
A certain first order reaction has a rate constant of 0.0215 s-1 at 24 degrees C. What is the value of rate constant at 70 degrees C if Ea=90.0 kJ/mol.
Air is a mixture of N2,O2,Ar,Co2,Ne,He,CH4,lessor amounts of the other gases and possibly substantial amount of H2O in vapor form.
The refining of aluminium from bauxite ore proceeds by the overall reaction: 2Al2O3 + 3C --> 4Al + 3CO2.
how many cans of Mountain Lightning would an individual have to drink to die from a tartrazine overdose If the LD50 of tartrazine in humans is supposed to be 12,750 mg/kg (as it is for mice) and the average human weighs 70 kilograms,?
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
You burn 0.0956 g of the compound and isolate 0.1356 g of CO2 and 0.0833 g of H2O. What is the empirical formula of the compound.
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
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