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A sample of nitrogen in a 4.5L container at a temperature of 27 degrees C exerts a pressure of 4.1 atm. Calculate the number of moles of gas in the sample.
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream. Assume that patient blood lead levels are 0.530 mg/L , that total blood volume is 5.0 L , and that 1 mol of succimer binds 1 mol of lead.
Determine whether each anion or cation is acidic or basic or neutral: a. Br- b. ClO- c. C7H5O2- d. Sr2+ e. Mn 3+ f. C5H5NH+
If the sun (diameter 864,000 miles) were the size of an NBA basketball (29.5 in), how far away would mercury
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water. How much water should be displaced by a pure gold object having a mass of..
How many reducing ends are in a molecule of corn starch (amylopectin) that contains 200,000 residues with a branch every 100 residues? Explain
hydrogen chloride gas is shipped in a container under 5.000 mm hg pressure that occupies 20 liters at 30 celcius how many liters of gas would be produced at stp?
Write an expression for the quantity 506000 cm in which it is clear that all the zeros are significant.
Describe or give examples of the following types of reactions. identify the reactants and products according to type eg . alcohol, ester etc.,
Consider formic acid, HCOOH (Ka= 1.9 x 10^-4) and its conjugate base, HCOO^- with a Kb of 5.3 x 10^-11.
The standard enthalpy change for the reaction of 1.85 moles of CO(g) at this temperature would be -524 kJ. Ho = -506.5 + 344 * -173.1 divide it all by 1000= -566.0kj i dont understand how they got -566.0kj, when i put it in my calculator
The solubility product of PbBr2 is 8.9 10-6. Determine the molar solubility in the following. (a) pure water
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