Compute work done (in j) on the surrounding atmosphere
A strip of magnesium of mass 15g is dropped into a beaker of dilute hydrochloric acid. Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 25 o C ) by the evolution of hydrogen in the subsequent reaction.
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What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
A homogeneous cylinder with weight G and radius R lay on a rough horizontal floor and adjoins to a rough vertical wall. What conditions must be satisfied by the force F enclosed to a point A of the cylinder to keep it in equilibrium.
What the process engineer really wants is to have 95% of the Boron just below the oxide. However there is an oxide thickness and tolerance of 110nm +- 4nm. Also, there is an implanter voltage reduction of up to 8% from the nominal voltage because
What would be the temperature change if the gas were heated with the same amount of energy in a container of fixed volume? (Assume the specific heat capacity of N2 is 1.00 J/g·K.)
After the reaction to form BaCO3(s) and CaCO3(s) was completed, the pressure of CO2(g) remaining was 230. torr. Calculate the mass percentages of CaO(s) and BaO(s) in the mixture.
Determine the magnitudes of forces FA and FB acting on each chain and the orientation ? of FB so that the magnitude of FB is a minimum. FA acts at 30° from the y axis as shown.
According to the law of conservation of mass, if the products of a reaction have a mass of 64.0 grams, then the total mass of the reactants
Starting with an aqueous solution of 115 mL of 0.35 M pyridine (Kb = 1.7 x 10-9), determine the observed pH of the solution at the following points in a titration.
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