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A sample of material is found to weigh 15.12 grams and have a volume of 1.20 cm^3. What is the calculated density? The sample is most likely which of the coinage metals listed above
An unequal stereoisomeric product mixture results from the reaction of trans-stilbene with pyridinium tribromide. What is the major product of this reaction and should there be any optical activity in a solution containing the product mixture?
Is the amount of sodium bicrbonate sufficient to react with benzoic acid. The amount of Benzoic Acid in ex. 1 is 0.060 Grams
In an expriment, a student burned this compound in an excess of oxygen and found that it evolved 3651 KJ of hea per mole of P4S3 at a constant pressure of 1 atm. she wrote the following thermochemical equation: P4S3(s) + 8O2 (g) --> P4O10(s)+3SO2...
The enthalpy of the graphite -----> diamond phase transition, which under 100 kbar occurs at 2000K, is +1.9 KJ/mol. Calculate the entropy change of the transition.
What is the blue product and write its formula. Also, write the reaction showing copper II (aq) + oxygen gas --> blue product.
If these two samples are mixed and then compressed in a 1.3 L vessel, what is the final pressure of the mixture. Assume that the temperature remains unchanged.
Write a structural formula for two different isomers of [Co(H2O)2(en)2]Cl2. Indicate the oxidation state of the Co in each case.
A solution of glycine molecular mass- 75 g/mol is prepared by solubilizing 52 mg of the amino acid into 10mL of water spiked with 7 x 10-4 mol of HCl. Explain what is the pH of the resulting solution
A solution is made by dissolving 535 mg of this protein in 10.0 mL water. Calculate the osmotic pressure of this solution at 37.0°C in mm Hg.
Problem- A researcher claims that an ancient scroll originated from Greek scholars in about 500 b.c. A measure of its carbon-14 decay rate gives a value that is 92 % of that found in living organisms.
Talc (used in talcum powder) has mass composition 19.2% Mg, 29.6% Si, 42.2% O,and 9.0% H.What is the empirical formula of the compound?
Calculate the molarity of a solution prepared by diluting 118 mL of 0.230 M K2Cr2O7 with 749 mL of water.
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