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How many moles of Co atoms are present in 5.91 · 1019 Co[P(CH3)3]4 molecules? Express your answer in scientific notation. How many moles of O atoms are present in 6.55 · 1022 F2SO2 molecules? If a sample of (NH4)2HPO4 is found to contain 2.85 · 10-3 g of P atoms how many (NH4)2HPO4 formula units are present? Express your answer in scientific notation.
Calculate the values of vmax and Km for the reaction. c) How much of a noncompetitive inhibitor must be added to yield 90% inhibition? The degree of inhibition, i, is calculated by i% = (1-?) 100%, where ? = (vo)inhibition/ vo Assume KI = 2.9 x 1..
Teeth are made principally from the mineral hydroxyapatite, Ca5 (PO4)3OH, which can be dissolved in acidic solution such as that produced by bacteria in the mouth:
Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl
How many grams of propane (C3H8) are required to heat all of the water in a 50 gallon water heater from 23.4oC to 65.0oC if the water heater (the jacket which contains the water)
If 175 g of X reacts completely with diboron trioxide to produce 2.43 mol of B4X3, what is the identity of X?
Hydrogen peroxide undergoes a first-order decomposition to water and O2 in aqueous solution. The rate constant at 25 °C is 7.40 * 10-4 s-1. Calculate the volume of O2 obtained from the decomposition of 1.00 mol H2O2 at 25 °C and 740 mmHg after 20...
in addition to the main product what are two side reactions that could occur in the experiment of the diels-alder
Synthetic polypeptides can assume an helical structure under appropriate conditions. Indicate whether polylysine and polyglutamate form an helix or a disordered structure at the indicated pH values.
What is the percent yield of a reaction in which 41.5 g tungsten (VI) oxide is combined with excess hydrogen gas to produce metallic tungsten
Calculate how many atoms of potassium A three mole sample of K2S would have and Calculate the current for diffusion-controlled electrolysis
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
Among the non metallic elements, the change in atomic radius in moving one place left or right in a row is smaller than the change in moving one row up or down. Explain these observations.
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