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How much heat is required to raise the temperature of a mole of oxygen from 298 to 3000 K at constant pressure?
The book gives the following values for Cp (specific heat at constant pressure): 29.376 J/(K*mol) at 298 K and 39.884 J/(K*mol) at 3000 K
Calculate the pH of a solution made by adding 69 g of sodium acetate, NaCH3COO, to 37 g of acetic acid, CH3COOH, and dissolving in water to make 200. mL of solution.
Naturally occuring sulfur consists of four isotopes: 95.0% 32s (31.97207amu); 33s (32.97146amu, 0.76%);
WHen 0.075 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 337 mL of solution, how many ammonium ions are present?
What are the major differences between "theories", "hypotheses" and "laws". What is an example that would explain them.
The specific rotation of the pure R-enantiomer of a compund is +80 degrees. What is the composition of R- and S-enantiomers in a mixture
Describe how you can use titration to determine the molar mass of an unknown acid, by giving a specific example and showing a sample calculation.
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.75 m K3PO4(aq).
Element X has two natural isotopes: X-6 (6.015 amu) and X-7 (7.016 amu). Calculate the atomic mass of the element X given the abundance of X-7 is 92.5%
Reaction of AsCl3 with Cl2 at low temperature yields a product, believed to be AsCl5, which shows Raman bands at 437,369, 295, 220,213, and 3cm-1. Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes.
Which of the following is not true regarding social development?
Metallic COpper is formed when aluminum reacts with copper(ii) sullfat. How many grams of metallic copper can be obtained when 54.0 G 0f Al react with 319 G of CuSO4?
A polymer sample combines five different molecular-weight fractions, each of equal weight. The molecular weights of these fractions increase from 20,000 to 100,000 in increments of 20,000.
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