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Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 5.30 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use Cm = 30.8 J/(K·mol) for Na(l) at 500 K.
a piece of metal with a mass of 148 g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 35
Explain how high in meters must a column of water be to exert a pressure equal to that of a 760-mm column of mercury. Explain the density of water is 1.0 g/mL, whereas that of mercury is 13.6 g/mL.
Consider the chemical reaction 2NH3(g) N2(g) + 3H2(g). The equilibrium is to be established in a 1.0 L container at 1,000 K, where Kc = 4.0 ? 10-2. Initially, 1,220 moles of NH3(g) are present. Calculate Kp for the reaction.
Calculate the amount of energy in kilojoules needed to change 423g of water ice at -10 deg c to steam at 125 deg c . The following constants may be useful:
the equilibrium constant kc for the following reaction is 7.00e-5 at 673 k. calculate kp for this reaction at this
estimate the enthalpy change for the combustion of one mole of acetylene c2h2 to form carbon dioxide and water vapor.
Question- A solution is made by mixing 500.0 mL of 4.0 M NH3 and 500.0 mL of 0.40 M AgNO3. Ag+ reacts with NH3 to form AgNH3+ and Ag(NH3)2+ according to the equilibrium reactions
Problem- Suppose a Lewis structure for a neutral fluorine-containing molecule results in a formal charge on the fluorine atom of +1.
A certain metal crystallizes in a body-centered cubic arrangement. If it rearranges to a face-centered cubic structure, what will happen to the density of the metal
Copper (II) Iodate precipitates from iodate solution. The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found to be 0.0012M
Describe, in detail, the structure of ATP and its function in oxidative phosphorylation and photosynthesis
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O -> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
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