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Carbon dioxide is dissolved in blood (pH 7.4) to form a mixture of carbonic acid and bicarbonate. Neglecting free CO2 what fraction will be present as carbonic acid? Would you expect a significant amount of carbonate (CO3-2)
What is the frequency of a photon emitted from a hydrogen atom when an electron makes a transition
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
How many moles of each of the following were in the original sample?
the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
2 NH3(g) + 3 O2(g) + 2 CH4(g) → 2 HCN(g) + 6 H2O(g) If 5.46x10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
What is the final volume in milliliters when 0.780 of a 39.7 (m/v) solution is diluted to 25.0 (m/v)? Express your answer numerically in milliliters.
Draw three possible structures for the B3H8- ion. Clearly indicate any three-center bonds. Which structure is most plausible (considering molecular orbital theory)
Consider the reaction NO + O3 → NO2 + O2 Which has a rate constant given by k = 1.8×10-12 e-1370/T cm3 molecules-1 s-1
Calculate the molecular rms speeds of He atoms at 10, 100, 1000 K in units of meters per second and miles per hour.
Starting with a 0.04 M solution and making a series of 1:100 dilutions, how many dilutions must you make to prepare a solution,
A tablet of Vitamin C changed color at 23.7 mLs of Iodine. how do you determine how much vitamin c is in the tablet.
determine the binding energy of an F-19 nucleus. the F-19 nucleus has a mass of 18.99849325 amu. a proton has a mass of 1.00728 amu and neutron has a mass of
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