Determine the percent by mass of feo in the original mixture
Suppose you react this mixture with an excess of oxygen to form 5.779g of Fe2O3. Consider a 5.43g mixture of FeO and Fe3O4. Determine the percent by mass of FeO in the original mixture.
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If the trainers think, realistically, that 20 people will attend, then what price must be charged per person for organization to break even?
Determine the mechanical benefit of a 15 m long inclined plane which is three m higher on one end than on the other.
The molal freezing point depression constant of benzene Kf= 5.09oCkg/mole. Benzene, C6H6, a common non-polar organic solvent, is neither acidic nor basic, and can neither donate nor accept hydrogen bonds.
An air-filled parallel-plate capacitor consists of a capacitance of 2.1 pF. The separation of the plates is twice, and wax inserted among them. The new capacitance is 2.6 pF. Determine the dielectric constant of the wax.
A plum is positioned at coordinates (-3.36 m, 0, 3.40 m). In unit-vector notation, find out the torque about the origin on the plum when that torque is due to a force whose only component is (i) Fx = 1.96 N, (ii) Fx = -1.96 N, (iii) Fz = 1.96 N an
Based on the model, every additional family member increases predicted costs by how much? Based on significance F-test, is the model good prediction equation?
What is the concentration of the silver nitrate solution when 10.00 mL of silver nitrate solution is titrated to the equivalence point with 8.50 mL of a 0.1100 M HCL solution.
Explain how much is the weight of Na2CO3 in the unknown when .7316g of an unknown carbonate (contains K2CO3 and Na2CO3) is dissolved and diluted to 100mL. 25mL of this solution is titrated with 31.6mL of 0.09572M HCl.
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