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A 9.11-g piece of zinc metal is dissolved in 75-mL of 3.5 HCL and hydrogen gas is evolved. The exact amount of 5.0 NaOH needed to neutralize the remaining H+ ions and to precipitate out the Zn 2+ ions as Zn(OH)2 is then added. State the balanced equations for each reaction involved in this process. Discover each equation as an acid/base, a precipitation, or a redox reaction.
The coal that is burned is a form of pure carbon. (Diamonds and graphite are other forms of pure carbon). A sample of coal is completely burned in a 10.0 L cylinder at a constant pressure of 1.10 atm and a temperature of 1000 oC.
Some wastewater has a BOD5 of 150 mg/L. The reaction rate is 0.23/d. What is the ultimate carbonaceous BOD
Is the ethoxide anion considered a strong base in elimination and substitution reactions. Could you please explain your answer
what volume of a 1.75M Calcium hydroxide solution is needed to completely neutralize 100ml of a 2.25M phosphoric acid solution
Describe a procedure for making 100 mL of a 0.10 M solution of barium nitrate, Ba(NO3)2.
The rate constant for electron transfer between V 2+ (aq) and V 3+ (aq) is observed to depend on [H+]: k = a + b/[H+], where a and b are constants. Propose a mechanism and express a and b in terms of the rate constants in your mechanism.
Identify one conjugate acid base pair in the reaction of HBA with H2O to produce BA? and H3O+.
the mass of a cube of iron is 324 g. iron has a density of 7.87 gcm3. what is the mass of a cube of lead that has the
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 203.00 pm
Moles of carbonate in limestone? 2. % CaCo3 in limestone (Equation 2)?
question 1 give the numbers of protons and electrons in each of the following a na b ca2 c al3 d i e o2 f n3 and g
What mass of Li2S is needed to prepare 300. mL of a solution having a litium ion concentration of 0.050 M
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