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If you eat a 48 g serving rice every fourth day and you weigh 75 kg, what is your dose of inorganic arsenic (in µg per kg body weight per day) if the rice contains 386 µg kg-1of total arsenic, 45% of which is inorganic arsenic.
Show how isobutylamine can be synthesized from isobutyl bromide and other necessary reagents using the Gabriel synthesis.
the pressure of a sample of helium in a 1.00-liter container is .988 atm. What is the new pressure if the sample is placed in a 2.00 L container?
Subsequent to running the experiment developing and drying, a spot was observed at 4.96 cm from the bottom of the plate as well as the solvent front was 7.38 cm from the bottom of the plate. Explain what is the Rf value
Calculate the osmotic pressure of a solution containing 25.9g of glycerin (C3H8O3) in 243.5mL of solution at 310K.
the mass of an evacuated 255ml flask is 143.187g. the mass of the flask filled with 267torr of an unknown gas at 25c is
a 150.0-g sample of metal at 80.0degc is added to 150.0 g of h2o at 20.0degc. the temperature rises to23.3degc.
How many moles of AgCl(s) will dissolve in 1.00L of 0.100 M NaCN and what are the concentration of the various ions in solution. K = 7.08 x 1019 for the reaction Ag+(aq) + 2 CN- ? Ag(CN)2-
spontaneous chemical reactions produce products which are more energetically stable than the reactants which form them. A strong acid reacts with a strong base to produce water and the free ions of a salt.
Calculate the density and radius of the ball bearing (volume of a sphere of radius r is 4/3pi r^3).
One mole of CO29(g) is mixed with one mole of H2 (g) and passed over a catalyst for the following reaction: CO(g)+2H2(g)=CH3OH(g) At 500 K and a total pressure of 100 bar, 0.40 mol of CH3OH is gounf at equilibrium. What are the values of Kp and Kc?
Warren broke his thermometer after determine the freezing point of the pure solvent he used a new thermometer to find the freezing point of the mixture should he have started over from the beginning after breaking the thermometer or is using diffe..
Suppose that a linear Li6 molecule could be formed by combining the 2s orbitals on each atom into delocalized MOs. What is the predicted bond order of the molecule as a whole
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