admin this is for a class discussion so a paragraph should be fine.Discuss the key atomic properties (charge shielding orbital configuration etc) that contribute most significantly to following periodic trends1) Atomic and ionic size2) Physical properties3) Chemical propertiesSelect an example of a transition metal that does not follow the orderly filling of electrons. Propose an explanation … Read more
LABORATORY REPORT I. PURPOSE (10 POINTS) The purpose of this laboratory is to learn the proper use of an analytical technique based on the measurement of mass. Gravimetric analyses depend on comparing the masses of two compounds containing the analyte. The principle behind gravimetric analysis is that the mass of an ion in a pure … Read more
What are the strong bases? Are there any patterns or anomalies to take note of when remembering them?
what geologic evidence do we have to determine the spreading rates of oceanic plates over earth’s history?
This week’s topics cover blood boosting altitude training and all other O2 boosting methods talked about in your book.Using internet research (credible) and peer reviewed research post a current article about such training methods and how they have been implicated in endurance sports. You may approach this from a sport perspective or from the training … Read more
1. Water was added to some of the reactions performed in kinetics experiment.explain the purpose of the water in detail. Explain the problem if water not included.2. if the absorbance value did not change with time what would this mean?3. why are reaction rates dependent upon concentrations and not the number of molecules of each … Read more
The observed freezingpointdepression for electrolyte solutions issometimes less than the calculated value. Whydoes this occur? Is the difference greater forconcentrated solutions or dilute solutions?
Calculate the boiling point of a mixture where 95.0 g of formic acid H2CO2 is dissolved in 250.0 g of acetic acid. Acetic acid has a Kb of 2.93°C/m and boils at 118°C. Assume that formic acid does not ionize when dissolved in acetic acid and that formic acid is non-volatile. Molar mass formic acid … Read more
What volume of 0.120-N NaOH will neutralize half of a solution of 35.7ml 0.07-N prop ionic acid (a weak monological acid)
My question deals with toxicology: “You have been asked to complete a screening level risk assessment to compare routes of chemical exposure and to determine whether it poses a health risk.””The receptor is a 75kg man who has worked 9 hours a day as a mechanic for 20 years. The chemical of concern is toluenethat … Read more