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Suppose that in a particle accelerator, a proton could be accelerated to 70.0% the speed of light. What is the frequency of this proton? (Assume the mass of the proton to be 1.673 x 10^-27 kg)
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl. If 7.695g of the oxide sample requires
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.289 grams of iron and 21.0 mL of 0.433M copper(II) sulfate react to form as much product as possible.
Calculate the pH of a solution that results from mixing 37.6 mL of 0.127 M ammonia with 48.3 mL of 0.119 M ammonium chloride.
what is the theoretical mass of xenon tetraflouride that form when 118. grams of xenon is reacted with 62.0 grams of flourine?
fluorine-18 undergoes positron emission with a half-life of 1.1x102 minutes. if a patient is given a 248mg dose for a
A mixture of CaCO3 and CaO weighing 0.693 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.436 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.
A 28.0-g sample of nitrogen gas combines completely with 6.0 of hydrogen gas to form ammonia. What is the mass of ammonia formed.
Formic acid, HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas
How much Ca(OH)2 is required to remove 90% of the PO4 3- from 5.5x10^6 L of drinking water containing 25 mg/L of PO4 3-
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
when formic acid is heated it decomposes to hydrogen and carbon dioxide in a first-order decayhcoohg rarrco2g h2 gthe
Explain how you would elute any diacteyl ferrocene formed during the synthesis of acetyl ferrocene, and if it would elute before ferrocene, with ferrocene, between ferrocene and acetyl ferrocene, with acetyl ferrocene, and/or after acetyl ferrocen..
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