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A piece of stainless steel (Csteel = 0.500 J/g·°C) is transferred from an oven (183°C) to 189 g of water at 23.2°C, into which it is immersed. The water and steel together reach a temperature of 27.9°C. What is the mass of the steel in grams?
How much heat is absorbed when 28 grams of H2O is converted into steam at 100 degrees C?
An unknown gas has been determined to have the empirical formula CH2. At 27°C and 0.966 atm, the gas has a density of 1.65 g/L. What is the molecular formula of this gas
A sample of nitrogen gas at a pressure of 698 mm Hg and a temperature of 86oC, occupies a volume of 14.4 liters. If the gas is heated at constant pressure to a temperature of 116 oC, what the volume of the gas sample will be in L.
A liquid that has a density of 0.80 ± 0.01 g/mL is insoluble in cyclohexane. What is the liquid?
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
Q 3: The salt NaBrO(3) oxides Sn^2+ to SnCl(6)^2- in the presence of hydrochloric acid according to the equation
The reversible chemical reaction has the following equilibrium constant: Kc=[C][D]/[A][B]=7.0 Initially, only A and B are present, each at 2.00 M .
A sample of gas is heated. During the heating process, the volume of the gas increases 1.7 times. If the initial temperature of the gas is 80degrees C. what is the final temperature of the gas?
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00C to 27.30C? The density of liquid bromine: 3.12 g/mL
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
When 0.069 mol of aluminum sulfate are dissolved in enough water to make 485 milliliters of solution, what is the molar concentration of aluminum ions?
At 212 mm Hg and 24 °C, a sample of gas occupies a volume of 125 mL. The volume is increased to 325 mL and the temperature is reduced to -5.0 °C. What is the final pressure of the gas in the flask?
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