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Which electrode of a voltaic cell the cathode or the anode corresponds to the higher potential energy for the electrons
the volume of blood in the body of a certain deep-sea diver is about 5.63 l. blood cells make up about 55 of the blood
Trimyristin can be synthesized from glycerol and tetradecanoic acid in 87% yield. If 25.00 g of trimyristin is needed, what amount of both starting materials (in grams) would need to be used in order to provide the needed amount of trimystin?
An 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. What is the mass of the magnesium oxide obtained?
At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) was burned, producing 18.0 g of CO2. What was the mole fraction of each gas in the mixture? Assume complete combustion.
Which silver salt will precipitate first? Show calculations to support your answer. What is the concentration of Ag+ when the first precipitate begins to form?
If the solution contains a metal cation such as \rm Ag^+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode.
When 1 mole of H2(g) reacts with C2H4(g) to form C2H6(g) according to the following equation, 137 kJ of energy are evolved. What is the value of q?
What systematic factors in the experience itself may lead to an answer that is not exactely correct.( Do not include student errors such as 'I forgot to set the balance to 0",etc.We assume the student is a perfect experimenter and errors result on..
In a gas mixture, the partial pressures are nitrogen 435 , oxygen 145 , and helium 240 . What is the total pressure ( torr) exerted by the gas mixture?
A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(..
how many atoms of oxygen per second are colliding with each square centimeter of the surface? The residual gas in the system has the same composition as air, and the temperature is 295K
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+.
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