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A compressed air tank carried by scuba divers has a volume of 8.0L and a pressure of 140 atm at 200C. what is the volume of air in the tank in liters at STP?
Acid rain over the Great Lakes has a pH of about 4.5. Calculate the [H_3O^+] of this rain.
What volume (L) of 0.250M HNO3 is required to neuralize a solution prepared by dissolving 17.5g NaOH in 350mL of water?
if the aluminum block is initially at 25circ c what is the final temperature of the block after the evaporation of the
A technician is plating a faucet with 0.86 grams of chromium from an electrolytic bath containing aqueous Cr2(SO4)3. If 12.5 minutes is allowed for the operation, what current is needed
The oil of nutmeg is known to consist of many other organic compounds besides trimyristin. What does the purity of the distillate indicate about these other compounds
If a sample containing 2.11 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
he 1.00 l at 300. torr ne 1.00 l at 0.527 atm ar 2.00 l at 45.0 kpa. assuming the connecting tubes have negligible
1500 g of frozen water at 0 degrees celsius and the temperature of the water at the end was 32 degrees celcius. how many calories of heat energy were absorbed.
a chemist dissolves 0.9 g of an unknown monoprotic one acidic h acid in water. she finds that 14.6 ml of 0.426 m naoh
The specific heat of fat is 0.45 cal/(g C) and the density of fat is 0.94g/cm^3 . How much energy (in calories) is needed to heat 10cm^3 of fat from room temperature (25 C) to its melting point (35 C).
Which of the following set of quantum numbers (ordered n, \ell, m_{\ell}, m_s) are possible for an electron in an atom
If the H+ ion concentration in an aqueous solution at 25.0 °C is measured as 6.6 x 10-4 M, then the pH is 1) 3.00 2) 3.18 3) 6.60 4) 9.55 5) 10.82
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