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How many atoms of sulfur are present in 9.36 grams of sulfur dioxide?
If, in a certain experiment, over a specific time period, 0.0035 mol PH3 is consumed in a 2.0 L container during each second of reaction, what are the rates of production of P4 and H2 in this experiment?
an unknown solid mixture containing benzoic acidcopperiisulfate and sand. she added 15ml.of acetone to her sample.
He diffuses faster than Ar because He is smaller has a higher average speed is less reactive is heavier
What mass of sodium azide is required to provide the nitrogen needed to inflate a 47.0 L bag to a pressure of 1.2 atm at 47 C.
aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 35.8 ml of hydrogen gas over water
Determine the molarity of Ni in the 20.0 mL solution? Determine the mass in grams of Ni in the original sample? Determine the weight percent of Ni in the sample?
1. calcium carbonate and sand mixture with weight of 4 grams is reacted with excees of hcl results in the production of
Upon taking the IR spectra of decanedioyl chloride and nylon 6,10, which of the 2 molecules would you expect to have a higher C=O stretching frequency and why
A 200,000-amu average molecular weight polymer is contaminated with .5% of a 100-amu impurity, most probably the monomer. Find out the error in the molecular weight determination if a .0001 molar aqueous solution is used. Presume a temperature of ..
A reaction is followed and found to have a rate constant of 3.36 x 10^4 M-1S-1 at 344 K and a rate constant of 7.69 M-1s-1 at 219K. Determine the activation energy for this reaction"
How many components are there in a system composed of arbitrary amounts of water, sodium chloride, and barium chloride?
How many g or H2O are created with excess CO2 and 168 g of KOH from the following chemical reaction? CO2 + 2 KOH -----> K2CO3 + H2O
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