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calculate the mass, in grams, at 25 degrees celcius of 30.0mL of propylene glycol, which has a density of 1.036g/mL
The volume of the gas is measured 201 mL at .989 atm. compute the number of grams of Na used in the reaction if Vapor pressure of water = 0.0277 atm
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Calculate the resulting pH if 365 mL of 2.88 M HNO3 is mixed with 335 mL of 1.10 M Ca(OH)2 solution.
How much heat is required to vaporize 351 g of liquid ethanol at its boiling point.
A chemist prepares a solution by dissolving 4.168 g of NaNO3 in enough water to make 200 mL of solution. What molar concentration of sodium nitrate should appear on the label.
Imidazole is a weak acid, and thus reacts with strong bases to form the corresponding anion. Show this reaction, and draw resonance structures that account for the stability of conjugate base.
Gold has a density of 19.3 g/cm3. How many pounds does a gold sphere weigh if it has a diameter of 5.20 inches?
0.10 mol of argon gas is admitted to an evacuated 50cm^3 container at 20C. The gas then undergoes an isobaric heating to a temperature of 300C.
What is the total electronic energy
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
Write chemical formulas for (a)lithium bromide,(b)calcium sulfide,(c) sodium sulfide,(d)beryllium oxide,(e) the chlorine molecule
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