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When teachers or administrators notify authorities about possible abuse or neglect, they must also inform the individual or family suspected of this behavior.
hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass O. If its molar mass is between 94 and 98 g/mol, what is its molecular formula?
if your input is a radiative heat source at 150 C, what is the rate at which heat needs to be added to produce the desired work and at what temperature will the engine dump exceess heat?
What is the average molar mass (in g/mol)? What is the relative standard deviation(RSD) in parts per thousand (ppt)? Report your answer to the correct number of significant figures.
Compute the molar Gibbs energy of mixing when two main components of air nitrogen and oxygen are mixed to form air at 298 K. Compute the molar entropy of mixing for the same process. There is one mole of each component.
Phenylephrine is a nasal decongestant and is the active ingredient in Sudafed, which contains phenylephrine hydrochloride (PEHCL). The conjugate acid (PEH+)
Suppose a researcher were doing work on mercury compounds and its use couldn't be avoided. Find out a) acute health effects involved with its use and b) the recommended waste disposal method for this mercury compound.
When an ant bites you, the reason it stings is because of an injection of formic acid. What is the pH when 50.0 mL of 0.1480 M formic acid (HCOOH) is titrated with 40.2 mL of 0.1841 M NaOH? PKa formic acid = 3.745.
Until 200 yr ago manufactured iron contained charcoal created from freshly cut wood that was added during the smelting process. As a result of this practice older samples of iron can be dated accurately utilizing the carbon-14 method.
Sulfurous acid, H2SO3 has acid dissociation constatns Ka1= 1.5*10^-2 and Ka2= 6.3*10^-8. What is the pH after 10.00 mL of 0.1000 M NaOH is added to 10.00 mL of 0.1000 M H2SO3
Use the mean value that you determined for Keq to calculate the SCN- concentration in a solution Fe3+ concentration was 4.00 X10-2M and initial SCN- concentration was 1.00 X10-3 M. Is all of theSCN- in the form ofFeNCS2+?
The NaHCO3 is the limiting reactant and the HCl is the excess reactant in this experiment. Determine the theoretical yield of the NaCl product.
monatomic molecules adsorbed on a surfase are free to move on this surface and can be treated as a classical ideal two
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