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Question- The dissolved oxygen concentration in a sample of pond water was found to be 7.26 mg/L. Express this concentration in g/m3
Write down solution with full explanation of necessary steps for above question
a premature infant suffers from respiratory distress syndrome. compared to a normal infant, your patient will have- increased production of lactate by anaerobic glycolysis
Determine the molecular formula of the compound at the temperature of 120 degrees celsius and Pressure 750 mm hg, if 1 l of the gaseous compound weighs 2.3 grams? '
A tank of oxygen holds 14.0L of oxygen (O2) at a pressure of 30.0atm . When the gas is released, it provides 230.L of oxygen. What is the pressure of this same gas at a volume of 230.L and constant temperature?
how many mL of 1.00 M hydrochloric acid is needed to prepare a 100.0 mL solution of hydrochloric acid with pH = 5.0 that also contains 0.01667 M MgCl2?
If 55.0 mL of ethanol {rm{(density}} = 0.789;{rm{g}}/{{rm{mL}}})) initially at 9.0^circ C is mixed with 55.0 mL of water {rm{(density}} = 1.0;{rm{g}}/{{rm{mL}}}) initially at 28.1^circ C in an insulated beaker, and assuming that no heat is lost, w..
Determine how many grams of methane is required to form 43.0 grams of CHCl3?
a blimp filled with 5000m3 of helium at20oc and 1.05 bar pressure. the volume of the cabin is30m3 and the mass of the
Calculate the average rate of decomposition of H2O2 between0 and 2.16 x 104 s. Use this rate to calculate the averagerate of production of O2 (g) over the same time period.
State the net equations the standard cell potential as well as the number of electrons transferred in the following electrochemical cells.
Given the following thermodynamic data, calculate the lattice energy of CaBr2 (s). Term & Value Delta Hf[Ca(g)] 179; delta Hf[Ba(g)] 112; I1(Ca) 590; I2(Ca) 1145; E(Br) -325.
A buffer is made from benzoic acid and sodium benzoate. How many grams of the acid would you have to mix with 14.4 g of the sodium salt to have a liter of a solution with a pH of 3.88. The Ka of benzoic acid (C4H5CO2H) is 6.3 x 10-5.
At a certain temperature the equilibrium constant for the subsequent chemical equation is 3.30. At this temperature, compute the number of moles of NO2(g) that must be added to 2.86 mol of SO2(g) in order to form 1.30 mol of SO3(g) at equilibrium.
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