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Determine whether each of the following statements is true or false. If the statement is false, modify and rewrite it so that it is a true statement.
a. When a molecule has two, degenerate, "infrared active", vibrational modes, the two vibrational modes will show absorptions at different frequencies in the infrared spectrum.
b. For a given substance, strong intermolecular forces between molecules of the substance can cause peak broadening of some of the absorptions in the infrared spectrum of the substance.
Several minerals are metal carbonates as well as siderite is a mineral that is largely iron(ll) carbonate. State a balanced equation for the reaction of siderite with nitric acid.
Calculate what quantity of potassium chlorate that has molecular weight of 122.5 needed to form 33.6 litres of oxygen? Express your answer in grams and assume that temperature and pressue will be in normal condition?
for the following equilibrium a 2b lt-gt 3cthe initial concentrations of species are 0.10 m a 0.20 m b and 0.30 m c
The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in a 1.3 cm cuvette or path length. The absorbance is 0.435 and the molar absorptivity coefficient is 86,300 M-1cm-1. The molecular weight for chloro..
The total precipitate was dissolved in HCl + HNO3. When the solution thus formed was treated with excess NaOH followed by H2O2, a colorless solution and a reddish brown precipitate were formed. The precipitate was found to be soluble in HCl, H2SO4..
If you have 300.0 mL of water at 25.00 °C and add 140.0 mL of water at 95.00 °C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
Calculate the pH in the titration of 25.0 mL of 0.100 acetic acid by sodium hydroxide after the addition
What volume of a 0.110 M NH4I solution is required to react with 923 mL of a 0.480 M Pb(NO3)2 solution? b. How many moles of PbI2 are formed from this reaction?
What is the molarity of a solution containing 1.35 mol H2SO4 in 245 mL of solution
In which reaction does the oxidation number of hydrogen change?
Consider the two waves, which we will consider to represent two electromagnetic radiations. Wavelength A has a higher frequency (2:1) than the wavelength of B.
Outline the changes that happen to the following groups or interactions in hemoglobin when oxygen binds todeoxyhemoglobin.
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