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A sample of steam with a mass of 0.552 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.50 g of water at 6.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
We have a nuts, bolts, and indirect measurement lab coming up. We'll get a bag of nuts/bolts and I need 2-3 methods on estimating the mass of a bolt without opening the bag. Thanks.
The heat of combustion of bituminous coal is 2.5 × 104 J/g. What quantity of the coal is required to produce the energy to convert 100. lb of ice at 0°C to steam at 100°C
The available starting materials are ZNCO3, HCl, Cl2, HNO3, Zn(OH)2, NaCl, ZN(NO3)2, and Zn. Write complete, balanced equations for the reactions chosen.
An oxygen tank contains oxygen at a pressure of 70 kPa. When the pressure drops to 36 kPa, the temperature increases from 300 K to 350 K. If the initial volume is 9 L, what is the final volume?
A compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
Georgia weighed 5.95 g of an unknown solid mixture containing benzoic acid, copper (II) sulfate, and sand. She added 15 mL of acetone to her sample and dissolved one of the components of the mixture. Which component dissolved in the acetone
1. Why does milk go sour and what causes the formation of curd? 2. Explain why during the experiment casein precipitates wheen hydrochloric acid is added to it.
Consider the following half-reactions. What is the maximum Eo of a cell constructed using two of these half-equations.
find the mass of sodium required to profuce 5.68 l of hydrogen gas at stp from the reaction described bu the following
Lead metal is added to 0.100M Cr3+(aq), Pb(s) + 2Cr3+(aq) -> Pb2+(aq) + Cr2+(aq)
The bond energies increase in the order: O2^1
A student was preparing to recrystallize a solid using mixed-solvent recrystallization. He planned to dissolve the sample in boiling methanol, and then add hot pentane to induce crystallization
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