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For the following reaction: Fe(OH)2 + H3PO4 ----> Fe3(PO4)2 + H2O [Unbalanced] In a reaction, 3.20 g of Fe(OH)2 is treated with 2.50g H3PO4. If 3.62g of Fe3(PO4)2 is produced in the reaction, what is the percent yield for the reaction?
A molecule, whose formula is AB, dissolves in water and also conducts electricity. What one statement best describes this molecule after it's placed in water. A)AB exists as a molecule only.
for the reaction represented by the equation cl2 + 2kbr 2kcl +br2 how many moles of potassium chloride are produced from 119 g of potassium bromide?
What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
The total mass of the car plus sand is 85,000 . The hopper door is not fully closed so sand leaks out the bottom. After 18.0 minutes, 1.34×104 of sand has leaked out. Then what is the speed of the railroad car?
Briefly explain how a lake with a limestone bed is more resistant to pH changes than a lake with a granite bed
What is the nuclear binding energy per mole if the mass defect of a certain isotope is 0.4941 u per atom or 0.4941 g per mol? Express your answer in joules.
Consider the four equations of states(EOS) below describing PVT behavior of gases. Let a and b be constants. EOSI : PV = RT EOSII: (P-a)V = RT EOSIII: P(V-b) = RT EOSIV: P = RT/(V-b) - a/V (a) Prove for EOSI that both U and H are functions of T on..
at a particular temperature, N2O5 decomposes according to a first-order rate law with a half-life of 3.0s. If the initial concentration of N2O5 is 1.0x10^-6 molecules/cm^3, what will be the concentration in molecules/cm^3 after 26.1s
Hydroxylapatite, Ca10(PO4)6(OH)2, has a solubility constant of Ksp = 2.34 × 10-59. Solid hydroxylapatite is dissolved in water to form a saturated solution. What is the concentration of Ca2 in this solution if [OH-] is somehow fixed at 5.30 × 10-6..
Choose the selection which correctly characterizes all three of the following substances in terms of whether they are polar or nonpolar
what is the ph at the half stoichiometric point if you are doing a titration with 20.0 ml of 0.200 m trimethylamine and
A turbine operates adiabatically with super-heated steam entering at T1, and P1, with a mass flow-rate, m(dot). The exhaust pressure is P2 and the turbine efficiency is gamma
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