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In Europe, gasoline efficiency is measured in km/l . If your car's gas mileage is 40.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142 km trip in Europe?
The temoerature rose by 3.65C. Next, a small piece of calcium carbonate was placed in the same calorimeter and .100L of dilute HCl was poured over it.
titrating an unknown weak acid you hope to identify. Your titrant is a 0.0935 mol/L NaOH solution, and the titration requires 21.8 mL to reach the equivalence point. How many moles of acid were in your sample?
The lid is tightly sealed on a rigid flask containing 3.50 L H2 at 17 °C and 0.913 atm. If the flask is heated to 71 °C, what is the pressure in the flask?
a 5.0g sample of a hydrate of cacl2 was heated and only 4.3 g of the anhydrous salt remained. what is the percentage of
If the temperature required for this process is 1600°C, what observations would you make considering the fact that the reaction occurs in biological processes
Draw the structure(s) of all of the possible monochloro derivatives of 2,6-dimethylheptane, C9H19Cl
just find out what mass of the nahco3 reacts with the vitamin c when the tablet dissolves in h2o it fizzes because the
At what point during a titration of a weak acid with a strong base does the pH = pKa? What ratio would cause pH pKa & pH pKa
The flask was then shaken until the solution was uniform. A 40.0-mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100 mL. of the final solution?
The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
Formic acid, CH2O2, can be decomposed to produce hydrogen. The Lewis structure for formic acid, CH2O2, is show below. The atoms are labeled A, B, C, D, E.
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 251.0 Torr at 45.0 °C. Calculate the value of H°vap for this liquid. What is the original boiling point
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