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You have two 500.0-mL aqueous solutions. Solution A is a solution of a metal nitrate that is 8.246% nitrogen by mass. The ionic compound in solution B consists of potassium, chromium, and oxygen; chromium has an oxidation state of 6 and there are 2 potassiums and 1 chromium in the formula. The masses of the solutes in each of the solutions are the same. When the solutions are added together, a blood-red precipitate forms. After the reaction has gone to completion, you dry the solid and find that it has a mass of 331.8 g.
a. Identify the ionic compounds in solution A and solution B.
b. Identify the blood-red precipitate.
c. Calculate the concentration (molarity) of all ions in the original solutions.
d. Calculate the concentration (molarity) of all ions in the final solution.
When delivering rated load a 10-kW, 230-V self-excited shunt generator has an armature-circuit voltage drop that is 6% of the terminal voltage and a shunt-field current equal to 4% of the rated load current Calculate the resistance of the armature..
Develop the four equations and describe the meaning of each term.
Calculate the resistance of the armature circuit and the field circuit.
A flat slab of Douglas fir wood 50.8 mm thick containing 30 wt% moisture is being dried from both sides (neglecting edges and ends). The equilibrium moisture content at the surface of the wood due to the drying air blown over it is held at 5 wt% mois..
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a distillation column fig. 1 separates 4500 kghr of a 40 benzene 60 chlorobenzene liquid mixture at 20oc. the liquid
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Find the efficiency of the transformer when it is delivering 7.5 kVA at 230 V and 0.85 power factor lagging.
Consider the following information: i. The layer of dead skin on our bodies is sufficient to protect us from most -particle radiation.
The rms induced voltage across the coil is 1 kV, and each turn has a length l = 112.5 cm and a width w = 10 cm. Determine the required value of the flux density.
A man comes home on a summer day and finds that his house is at 35oC. He turns on the air conditioner. In 30 minutes the entire house is at 22oC. If the COP of the air conditioner is 2.8, calculate the powerthat must be supplied to it. Assume the..
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