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Calculate the mass of gasoline (in kg) needed to fill up a small tank which has a capacity of 3.0 L. Assume that the density of gasoline is 0.80 g/mL. The mass is______x10^______kg
Calculate the partial pressure of SO2. Calculate the partial pressure of Cl2. Calculate the equilibrium constant at this temperature.
calculate the amount of energy necessary to vaporize 10 g of acetone at its boiling point if the heat of vaporization is 29.1 kJ/mol.
What occurs at the molecular level of an extraction? We did an extraction of benzoic acid using NaOH and diethyl ether dried to 1, 4-dimethoxybenzoate using NaOh
How would you prepare 350mL of a single solution containing 150mM Tris, 5mM glucose, and 5 mM Nacl?
moles of an ideal gas in an initial state T1 = 300 K and P1 = 0.5 bar undergo an isothermal compression until the pressure of the system is four times the original pressure
calculate the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M
A physician treating a patient with megaloblastic anemia might be tempted to treat the patient with folic acid to see if a simple folate deficieny is involved.
Provide the Mechanism when 50% Methanol/Water solution is used in simple distillation to extract the Methanol
For the neutralization reaction involving HNO3 and Ca(OH)2, how many liters of 1.55 M HNO3 are needed to react with 45.8 mL of a 4.66 M Ca(OH)2 solution?
the molecular orbital theory provide an explanation for the existence of the covalent molecule Na2 in the gaseous state. How would you predict Na2 by the Lewis theory?
Krypton crystallizes as a fcc (face centered cubic unit cell) having an edge length of 559 pm. What is the density of solid Krypton?
A 4.20 g nugget of pure gold absorbed 290 J of heat. What was the final temperature of the gold if the initial temperature was 25.0°C? The specific heat of gold is 0.129 J/(g·°C).
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