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Indicate whether the subsequent balanced equations involve oxidation-reduction. Suppose they do indentify the elements that undergo changes in oxidation number.
Assuming that the solution volume remains constant at 125mL. find the molarity of the final KBr solution?
A common industrial unit for articulating the concentration of hydrogen peroxide is to state the relative volume of oxygen gas at 0 C and 1 atm, produced per volume of hydrogen peroxide solution that decomposes.
A 52.0 mL volume of 0.35 M CH3COOH (Ka=1.8e-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 21.0 mL of NaOH.
Typically an adult will inhale 2.1 L of air per breath. What mass of ozone is taken into the lungs per breath by an adult breathing air containing 1.57 x 10^-4 micro(ug) grams of ozone per cm^3 of air?
magnesium ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials
A mixture of CO, CO2 and O2 is contained within a 275 mL ?ask at 0?C. If the total pressure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr.
Calculate the mass in grams of hydrogen chloride produced when 5.6 L of molecular hydrogen measured at STP react with an excess of molecular chlorine gas
Estimate the final temperature of the gas if 58g of air at 25 degrees Celsius and 50 bar undergoes a Joule-Thomson throttling to a final pressure of 1 bar. Assume the Joule-Thomson coefficient is independent of temperarture and pressure.
calcium hydride cah2 reacts with water to form hydrogen gas.cah2s 2 h2ol caoh2aq 2 h2gthis reaction is sometimes used
Hypochlorous acid, HClO, has a pKa of 7.52. What is the value of the acidity constant for this acid. Enter your result to 3 significant figures in E format - for example 1.23E-4 represents 1.23x10-4.
Which of these square planar complex ions can have cis-trans isomers. A. [Pt(NH3)2Cl2] B. [Pt(NH3)4]2+ C. [Pt(NH3)Cl3]- D. [Ni(NH3)3Cl]+ E. [Ni(NH3)4]2+
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