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1.A recommended method to safely dispose of lead ion solutions is to precipitate the lead as a very low solubility compound. As an example, write the complete balanced chemical equation for the reaction of lead(II) acetate and sodium silicate solutions.
2 The greenhouse effect is caused by a.infrared radiation. b.ultraviolet radiation. c.water. d.carbon dioxide. e.all of the above
A liquid has a change in enthalpy of vaporization of 35.0Kj/mol and a boiling point of 137c . what is the vapor pressure at 109c
consider the series of acids hocl hoclo hoclo2 and hoclo3. what is the oxidation state of the chlorine in each of these
A saturated solution of magnesium hydroxide (Mg(OH)2) in equilibrium with undissolved solid is prepared at 25°C. The pH of the solution is 11.03. Calculate the value of the Ksp.
Find the partial pressure of each produce and the total pressure in the flask at the end of the reaction.
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+half-cell at 25 °C. The initial concentrations of Ni2+ and Zn2+are 1.80 M and 0.120 M , respectively. The volume of half-cells is the same. 1. What is the initial cell potential? ANSWER: ..
Calculate the concentration of the third standard solution using the dilution scheme outlined in the experiment. The initial dye solution is 1.24 mg/mL
Compute the number of moles of Chlorine atoms in 3.01×10^24 formula units of magnesium chloride,MgCl2 .
what is the partial pressure of nitrogen in a container that contains 3.96mol of oxygen
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide calculate the mass of zinc required to react with 110mL of 0.15M nitric acid
Define and distinguish between the terms rate and rate constant. Give the units of k for 1st order, 2nd order, 1.5 order, and zeroth order reactions.
Rank the following hydrogen atom transitions in order of increasing energy of light produced ( from lowest energy light produced to highest energy light produced).
can a liquid be identified by the same principl(e.g. mixing an unknown liquid with known liquid) and determining if the boiling point of the mixture is depessed if the two liquids are different?
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