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A thin copper rod of 1.00 m long consists of a mass of 50.0 g. Determine the minimum current in the rod which would allow it to levitate above the ground in a magnetic field of magnitude of 0.100 T?
Determine the fluorine concentration of the 55 mL of stock solution? A stock solution is prepared by adding the 20 mL of .81 M MgF2 to enough water to make 82 mL.
Determine the enthalpy change in kJ when 19.4g of hydrogen sulphide is burned. Hydrogen sulfide, H2S is a foul-smelling gas which burns to form the sulphur dioxide
A silver wire having resistance of 60 ohm is melted down and the similar volume of silver is employed to make a wire which is 3 times wider than the original wire. Determine the resistance of the ne
Determine how much heat is release when the 8.1 g of CS2 and 8.1 g of Cl2 are mixed and react according to the following equation?
When a 120 V circuit is wired to supply current to a tea kettle (600 W), a microwave (900 W), and a toaster (800 W). Determine what size circuit breaker must be used? Show work.
The rectangular theatre seats 1620 people. If every row had six more seats in it, number if rows would be decreased by nine. Compute number of seats in every row?
Explain what volume of gas we would expect to be formed at standard temperature and pressure if we were to react 0.146g of Sulfamic Acid with the 0.120g of Sodium Nitrite.
The windings in a heating element on a small heater comprises of 200 m of 22 gauge copper wire. Determine the power dissipated in the heater while it is on and how much would it cost to run this hea
Discuss why is vapor pressure of water and the important experimental detail in measuring the molar volume of nitrogen?
The two blocks of Cu, one of two kg and the other of 1 kg mass are positioned in a well insulated container so no heat can flow in or out of the system. One block is primarily at 100C and the other
A student observed that 0.224 grams of a metal produced 106.6 mL of wet hydrogen calculated with an eudiometer at 27.0 degree of Celsius and the barometric pressure of 747 torr.
A capacitor is placed across a battery and permitted to charge fully. The battery is then detached and the plates of the capacitor are then moved apart (d rises).
Bromthymol blue, an indicator with a Ka value of 1.00× 10-7, is yellow in its prorogated form and turns blue when protons are lost. For most indicators, about a tenth of the initial form
She sails NORTH for 1 hour, then turns and sails EAST for 30 km. She sails at the constant speed of 6 km/hr. Determine how much time was she within 8 km of buoy?
A straight rod comprises of a 1.44 cm long piece of aluminum joined to a 2.61 cm long piece of steel. Determine by how much will the length of this rod modify if its temperature is raised from 12&de
Discuss how much heat is absorbed when the 1 mol of CS2(g) forms from its elements at these conditions? When 1 mol of CS2(l) forms from its elements at1 atm and 25°C, 89.7 kJ is absorbed, and it t
Determine the partial pressure of each gas and the total pressure if the temperature of the gas is 20 degrees Celsius. PO2, PHe, P total = atm A deep-sea diver uses a gas cylinder with a volume of
A heat engine consists of max theoretical efficiency of 25% if the high temperature reservoir is at Th=127 C. i) At what would be the temperature of the low temperature reservoir, Tc this were a Carno
Determine the absolute third-law entropy of a "solution" which is having one mole of each gas. Suppose ideal behavior. At 25oC and 1 atm pressure, the absolute third-law entropies of methane and eth
A typical nuclear power plant produces electricity at the rate of 900 MW. The efficiency of transforming thermal energy to the electrical energy is and the plant runs at full capacity for 80% of the
Upon the addition of another mole of B to the solution, the vapor pressure increases to 347 mmHg. Determine the vapor pressures of pure A and B at the 84oC. A mixture of liquids A and B exhibits ide
Explain why does copper react with the concentrated sulphuric acids at the high temperatures and not with dilute sulfuric acid at lower temperatures?
A straight rod comprises of a 1.44 cm-long piece of aluminum joined to a 2.61 cm long piece of steel. Determine by how much will the length of this rod change when its temperature is raised from 12&
Determine the weight of precipitate that will dissolve in the 5.0x10^2 mL of water. AgBr(s) (FW=188; Ksp=5.0x10^-13)