What should you do when a lab accident such as glass breakage or solution spills occurs ?

Making a salt solution for a cooking process is a common way to achieve a higher cooking temperature, as the dissolved salt elevates the boiling point of the water. This allows for faster cooking or achieving desired textures that require temperatures above 100.00 oC. A culinary chemist is preparing a highly concentrated brine for a special high-temperature preservation process. The chemist mixes grams of table salt (sodium chloride, NaCl, molar mass of 58.44 g/mol) with liters of pure water. What is the resulting boiling point (in oC) of this brine solution? Assume the following: Pure water has a density of 1.000 g/mL and a normal boiling point of 100.00oC. Sodium chloride (NaCl) is a strong electrolyte that dissociates completely into Na+ and Cl− ions in solution. The molal boiling point elevation constant (Kb) for water is 0.512oC/molal. Add your answer using 4 sig figs.

Consider the blue dye and the bleach reaction that you did an experiment on. Which affects the rate of reaction? 

In calorimetry experiment, what concept is applied in calculating for the heat of the reaction?

45. The nurse is instructing the client how to calculate dosages for the Vitamin B12 ordered by the health care provider.  The medication comes 1 mg/mL.  The health care provider has ordered 200 mcg IM.  How many milliliters would the nurse administer? Round to the nearest tenth.

The following factors can affect the endpoint of the titration

In the equilibrium of phenolphthalein HA H+ + A- , the acid form HA is colorless while the conjugate base A- is fuchsia. When this is added to a basic solution such as NH3 (pH >8) , the color will_____   

A schematic diagram or flowchart contains

Which of the following statement(s) is/are true about the buffer such as 1.0 M NH3/NH4+

  Which of the above figure below is an Erlenmeyer flask? glassware 01.jpg