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What is the final volume of 845 mL of neon gas at 202°C if the gas is cooled to 86.0°C?
A 44 sample of water absorbs 329 of heat If the water was initially at 21.7, what is its final temperature.
what mass of limestone must have dissolved if 3.05x10^10 kg of calcium hydrogen carbonate was produced? CaCO3(S)+H2CO3(aq)->Ca(HCO3)2(aq)
Calculate the standard emf for each of the following reactions:a)H2(g) + F2(g)---> 2H+(aq) + 2F-(aq)
An electron traveling at the velocity of 3.7 105 m/sec has an uncertainty in its velocity of 2.34 105 m/s. determine the uncertainty in its position?
Talc (used in talcum powder) has mass composition 19.2% Mg, 29.6% Si, 42.2% O,and 9.0% H.What is the empirical formula of the compound?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
When one mole of benzene (C6H6) undergoes complete combustion, 3,170 kJ are released. Calculate the combustion energy of 0.350 kg of benzene?
What volume of 0.128 M Li2S solution is required to completely react with 170. mL of 0.128 M Co(NO3)2?
Calculate the mass of PbCl2 that will dissolve in 50 mL of water if the solubility product constant is 1.61*10^-5?
An acre of corn can produce about 375 gallons of ethanol, using only the kernel of the corn for conversion to ethanol. Assume the energy input to produce an acre of corn is 15000000 kJ.
A 14.0-g sample of ice at -18.0°C is mixed with 122.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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