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Question- Element x has 3 isotopic forms: x-28 (27.977 amu, 92.21% abundance) , x-29 (28.976 amu, 4.7% abundance), x-30 (29.974 amu, 3.09% abundance) calculate atomic weight of x
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Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. What would the products of the reaction be
A patient recieves all her nutrition from fluid given through the vena cava. every 12 hours, 750mL of a solution that is 4%(m/v) amino acids (protein) and 25% (m/v) glucose (carbohydrate) is given along with 500 mL of a 10%t (m/v) lipid (fat)
sodium 24 has a half life of 15 hours. how much sodium 24 will remain from a 10.0-g sample after 60 hours?
The decomposition of 3.32 g CaCO3 yields 1.24 g CaO. What is the percent yield of this reaction? CaCO3(s) -> CaO(s) + CO2(g)
On a climb up mt. Whitney, the atmospheric pressure drops to 467 mmHg. What is the pressure in terms of the following units? a) atm; b) torr; c) in. Hg; d) Pa.
tincture of iodine is i2s dissolved in ethanol c2h5oh. a 1 solution of tincture of iodine is 10.0 g of solute for 1000.
Explain what does the reaction between Iron(III) Chloride hexahydrate and potassium oxalate monohydrate produce
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
The molar mass of cellulose is approximately 6.0 x 10^5 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 10^3 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5.
How many times faster is the catalyzed rate versus the uncatalyzed rate? In other words, by what factor/coefficient do you have to multiply the uncatalyzed rate to equal the catalyzed rate? Assume the temperature is 298 K.
The nitrix oxide molecule, NO,readily loses one electron to form the NO+ ion. Why is this consistent with the electronic structure of NO. Predict the order of the N-O bond strengths in NO, NO+ and NO- and describe the magnetic properties of each.
dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent
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