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1. Solid calcium oxide mixes with carbon dioxide gas.
2. Diphosphorus pentoxide is added to water.
3. Hydrogen sulfide gas is bubbled through a solution of silver nitrate.
4. Solid copper is added to a dilute solution of nitric acid.
5. Solutions of lead(II) nitrate and sodium chloride are mixed.
A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL. Titration of a 50.0 mL aliquot of this solution required 42.5 mL of 0.0900 M NaOH to reach the end point. Determin the acid content of the vinegar as wt. % acetic acid.
When one of the atoms involved in a covalent bond has a much higher electronegativity than the other a bond results.
A 7.0 liter balloon at room temperature (22 degrees celsius) contains hydrogen gas. If the balloon is carried outside to where the temperature is -3.0 degrees Celsius.
Calculate the pH of an aqueous solution that is 0.020 M in HNO3 (aq) at 25 degrees Celcius. Is the solution acidic or basic
NH4ClO4 ignites and burns in the absence of any other material to produce N2, HCl, H2O and O2. Write the balanced chemical equation for this process and determine the mass of H2O produced.
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
Determine the value of the first-order rate constant. Answer units are microseconds^-1 or (us^-1). B) Determine the half-life for the decomposition of Cl2O2.
Consider the titration of a 25.0 mL sample of .125M RbOH with .105M HCl. Find the initial pH.
How many moles of methanol are present in a 150.0 gram sample of methanol,CH3OH
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 2-bromobutane. Draw the organic product resulting from using these chemicals in the Wittig reaction.
A metal rod has a mass of 17.62 g. A graduated cylinder contains 28.9 mL of water. The metal rod is added to the cylinder. The final water level is 35.1 mL. What is the density of the metal rod?
Draw the product for the chlorination of 2-methylbutane that proceeded through a secondary radical.
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