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A boiler is used to heat steam at a brewery to be used in various applications such as heating water to brew the beer and sanitizing the brewing tanks. 81.0% of the heat produced by the boiler is used to create saturated steam at 18.0 bars (absolute) from liquid water at 20° C. If 1.80 × 102 m3/h of steam is needed, what rate of heat does the boiler output?
A hypothetical element has a BCC crystal structure, an atomic radius of 0.149 nm and an atomic weight of 96.03 g/mol. What is the density of this element
A sample consisting of various gases contains 3.4 10-6 mole fraction of radon. This gas at a total pressure of 33 atm is shaken with water at 30°C. Calculate the molar concentration of radon in the water.
Nitric oxide has a density = 1.782 g/L at the temperature of 12.64 degree celsius and pressure of 670.7 mm Hg determine the mass percent of Sulfur dioxide?
if an analyte exhibits both absorbance and fluorescence at a given excitation wavelength what will doubling the
used the 8900 kilojoules you expend in energy in one day to heat 50000 of water at 20 what would be the rise in
7.50 mL of 0.125 M HCl is added to the 100.0 mL of the buffer solution. Calculate the new [NH3] and [NH4Cl] for the buffer solution. Calculate the new pH of the solution.
Phenylacetic acid (C6H5CH2COOH) is one of the substances that accumulates in the blood of people with phenylketonuria, and inherited disorder that can cause mental retardation or even death
what is the empirical formula for a substance if a 1.000 g sample of it contains .262 grams of nitrogen 0.075 grams of hydrogen and .663 grams of chlorine?
Some of the best laboratory vacuum systems can pump down to as few as 9.0 multiplied by 109 molecules per cubic meter of gas. Calculate the corresponding pressure, in atmospheres, assuming a temperature of 25°C.
Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed: (a) Eea for CL(g) = -348.6kj/mol. (b) Ei1 for Ca(g) = +589.8kj/mol. (c) Ei2 for Ca(g) = +1145kj/mol. Heat of ..
Methanol can be produced by the reaction shown below with the following thermodynamic data given at 25 degree Celcius.
calculate the molarconcentration of oxygen in water at 25 celsius for a partialpressure of 0.23 atm. the henry's law constant for oxygen
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