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Trying to figure out ionic bonds and figuring out formulas. For example...K+1 and CO3-2 combines to form what.
The highly exothermic thermite reaction in which aluminum reduces iron (III) oxide to elemental iron, has been used by railroad repair crews to weld rails together. Explain What mass of iron is formed when 725 KJ of heat are released
The solubility of a slaked lime, Ca(OH)2, in water is .185g/100mL. What volume of .00400 M HCl is needed to neutralize 10.0mL of a saturated Ca(OH)2 solution
The equilibrium constant for the reaction of bromine with chlorine to form bromine monochloride is 58.0 at some temperature. Br2(g) + Cl2(g) ! 2 BrCl(g) What is the value of the equilibrium constant for the following reaction?
How many photons are required to heat 295 of coffee from 25.0 to 62.0 ? Assume that the coffee has the same density, 0.997 , and specific heat capacity, 4.184 , as water over this temperature range.
1.0678g of a standard iron(ii) ammonium sulfate, (NH4)2Fe(SO4)2. 6H202 requires 35.50mL of permanganate solution for titration. calculate the molary of the permanganate solution.
Problem- The freezing point of 0.0830 m aqueous acetic acid is -0.159?C. Acetic acid, HC2H3O2, is partially dissociated according to the equation: HC2H3O2 (aq) H^+^ (aq) +C2H3O2^-^ (aq). Calculate the percentage of HC2H3O2 molecules that are diss..
Write a detailed, stepwise mechanism for all steps in the addition of HBr to 1-pentene in the presence of peroxide. Show all intermediates and use cuved arrows as appropraite.
How many milliliters of 0.110 are needed to react completely with 25.0 of 0.160 ? How many grams of will be formed?
A Sample of 4.6434g of benzoic acid, C7H6O2, is dissolved in 50.0033 g of camphor. What is the freezing point of the resulting solution. For camphor, Tf= 179.5 C, Kf = 40C/m
Calculate the mass/mass percent concentration for each of the following solutions. 1.) 1.05g NaCl in 95.0g of solution 2.) 2.00g K2Cr2O7 in 103.0g of solution 3.) 50.0g C6H12O6 in 125.0g of solution
Calculate the size of the quantum involved in the excitation of (a) an electronic oscillation of period 1.0 fs, (b) a molecular vibration of period 10 fs, (c) a pendulum of period 1.0s Express the results in joules and kilojoules per mole.
Determine the concentration, in moles per liter, to which the hydroxide concentration must be raised to produce a concentration of 0.200 mg/L of copper if the starting concentration is 2.00 mg/L. Estimate the resultant pH.
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