Blog

What is the pH of a solution with an H3O+{“version”:”1.1″,”math”:”H3O+”} concentration of 3.33×10-3 M{“version”:”1.1″,”math”:”3.33×10-3 M”}?

The following is an unbalanced chemical equation: __HgNO32 → __HgO + __NO2 + __O2{“version”:”1.1″,”math”:”__HgNO32 → __HgO + __NO2 + __O2″} Enter the correct coefficients (IN ORDER) for each reagent.

If you are given 760 mL of a 5.0 M NaCl solution and dilute it to 1.5 M NaCl, what is the final volume of your solution?

Draw the orbital diagram of aluminum Al{“version”:”1.1″,”math”:”Al”}. You may describe it in the space below, or you may draw it on your scratch paper and show the camera. If you do that, be sure the image shows up clearly on the webcam. Also type in the space below that you showed the camera. 

The following is an unbalanced chemical equation: __NH3 + __H2O → __NH4+ + __OH-{“version”:”1.1″,”math”:”__NH3 + __H2O → __NH4+ + __OH-“} Enter the correct coefficients (IN ORDER) for each reagent.

You wrote a program that creates a child process that produces output. After running it in your terminal as shown, you observe the following behavior. What could be responsible for what we see in the output below?  

Using a pH meter, you find that the actual pH of your solution is 9.5. What is the actual concentration of OH-{“version”:”1.1″,”math”:”OH-“} in your solution? 

What type of change is iron melting in a furnace?

Based on your percent yield, was the reaction reversible or irreversible? 

Chromium and Oxygen