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The heat released when one mole of water is formed from the elements is 1,198 kJ. An experiment was conducted that permitted water to form in this manner, and the heat was contained in 2.0 liters of water. The water temperature before the reaction was 34.5°C, and after the reaction it had risen to 52.0°C. How many moles of water were formed? (The specific heat of water is 4.184 J/g·°C.)
A bomb calorimeter whose components have a heat capacity of 6.66 kJ/°C is filled with 913 g of water. (The amount of water is not constant from experiment to experiment.
Calculate the enthalpy of solution in kilojoules per mole of solute. Enter your answer numerically in kilojoules per mole of solute.
what are the molar concentrations for Na+, Cl-, OH- in the resulting solution? Assume a total volume of 100 mL.
What is the hydronium ion concentration in an aqueous hydrochloric acid solution that has a pOH of 11.540 ?
a coffee cup calorimeter containing 100ml of 0.30M HCl at 20.3degrees celcius. when 1.82g of Zn solid is added, the temperature rises to 30.5 degrees celcius. what is the heat of reaction per mole of Zn.
The vapor pressure of chlorine dioxide (ClO2 ) is 155 Torr at -22.75 ? C and 485 Torr at 0 ? C. What is the normal boiling point of chlorine dioxide?
Adipic acid and citric acid have very similar melting points. Given two unkown samples, one being citric and the other adipic acid
Considering the given equation HCl + X 3 (PO4) 2 = H 3 PO 4 * XCl 2 it is given that when a particular metal A reacts with hydrochloric acid
A green leaf has surface area 2.05 cm^2. If solar radiation is 1190 W/(m^2) , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
calculate the vapor pressure of the pressure cooker if the temperature inside the pressure cooker is 119 degree celcuis.
What is the mass, and the volume, of this seawater that contains 1.00 g of oxygen?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable first approximation.)
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