Write small essay of the pharmacological effects & plasma drug level for recreational use AND pharmacological effects & plasma drug level for overdose, Cocaine.
Which graph shows how emasurd increases in UV-B raditaion correlate with percent reducton n the concentration of ozone in the…
A 2.55-g sample of a mixture of FeCl2 znd Fe(NO3)2 is treated with excess AgNO3(aq). the recipitate is filtered off,…
Use the following data and data from Appendix D in the textbook to determine the quantity of heat needed to convert 15.0g of solid mercury at -50.0∘C to liquid mercury at 25 ∘C. Specific heats: Hg(s), 24.3 Jmol−1K−1, Hg(l), 28.0 Jmol−1K−1. Melting point of Hg(s), -38.87 ∘C. Heat of fusion, 2.33 […]
apply the pauli principle the aufbau principle, and hund’s rule to write out the electron configuration and draw the orbital diagram for configuration and draw the orbital diagram for each of the following elements a. silicon b. fluorine c. calcium d. krypton
On the periodic table, Oxygen (O) is shown to have an atomic weight of 15.99 amu. Despite this, there is no such thing as an atom of oxygen that has a mass of 15.99 amu. So…. Why does the periodic table show this value?
the empirical formular of an unknown substance is HSO4. If the molecular weight of the substance 194g/mole, what is its…
Identify three common chemicals found in the home and discuss their potential for toxicological poisoning. include what treatment, if any, is appropriate in these poisoning cases. Please cite a reference source for your response This needs to be 200 words with a reference and a quote from that reference
EXPERIMENT 5: Properties of Gases Read the entire experiment and organize time, materials, and work space before beginning. Remember to review the safety sections and wear goggles when appropriate Objectives: To investigate some physical and chemical properties of gases, and To use these properties to identify these gases whenever they are encountered. Materials: […]
The bright-red color of highway safety flares comes from strontium ions in salts such as Sr(NO3)2 and SrCO3. Burning a flare produces strontium ions in excited states, which then emit red photons at 606 nm and several wavelengths between 636 and 688 nm. Calculate the energy (in Joules per mole) of the 652 nm emission.
