a. Convert 91.1 m to kilometers (km). km b. Convert 96.9 km to meters (m). m c. Convert 79.2 kg to grams (g). g d. Convert 65.4 L to milliliters (ml). mL e. Convert 34.6 dL to liters (L). dL f. Convert 4130 L to cubic centimeters ().

2) 6.0 moles of MgCl2 is dissolved in 20.0 L of water. What is the molarity of the solution? 3) 3.6 moles of KOH are dissolved in 18.3 Liters of acetone. What is the molarity of the solution? 4) 10.0g of NaCI is dissolved in 5.0L of water. What is the molarity of the solution? (first convert grams to moles! 5) How many grams of NaCl must be added to 2.00mL of water to make a 85.5M solution? (1000 mL = 1 L) 6) How many moles of solute are in 125 mL of a 2.0 M hydrochloric acid (HCI) solution? 7) How many grams of magnesium chloride (MgCl₂) are contained in 0.50 L of a 1.5 M solution? 8) How many liters of a 0.500 M sodium chloride solution would contain 13.5 grams of solute? 9 How many grams of magnesium nitrate, Mg(NO3)2 are contained in 415 mL of a 2.5 M solution? 10) How many moles of sulfuric acid (H2SO4) are in 63.5 mL of a 3.0 M solution?

Table B.2 Geometry and Polarity of Group W Compounds

Table B.3 Geometry and Polarity of Group U Compounds

Part C-Polarity Demonstration The results for the demonstration for polarity of various substances presented in the image below. Note that each vial has two liquid layers, water and oil. (Oil is a hydrocarbon chain.) Use this image to complete the following question.

7. Determine the empirical formula for a compound having 31.1% potassium 28.9% chlorine, and 40.0% oxygen. b) If the molar mass of this compound is 245.2 g/mol, what is the molecular formula?

The elements on the Periodic Table have many uses ranging from use in food products, fertilizers, batteries, water disinfection lasers, and medical equipment. Your research must include information about the following: Start by choosing one element from the Periodic table and research the global issue that the element can be used to address (The element you choose should be the scientific solution). You must explain your solution using the element, and how it works to solve the global issue. Be sure to include statistics to show the effectiveness of your solution. Discuss and evaluate the implications of using your solution on ONE of the following factors: social, economic, political, environmental, cultural, moral and ethical factors (to evaluate the factor you need to discuss two positive effects of using the mixture on the factor and two negative effects of using your solution on the factor supported by statistics and evidence from research)

9. Pure ethanol, C₂H5OH, has a molar concentration of 17.2 mol/L. What volume will result when 10.0 mL of pure ethanol is diluted to create a new ethanol cleaning solution having a concentration of 10.3 mol/L? (3 marks)

10. How many grams of Mg(OH)2 are required to make a 550.0 mL solution with a concentration of 0.725 mol/L?

9 slide to cover You will work in the group which will remain the same for the following laboratory work. For this particular assignment: You will need to research options for the preparation of hand sanitiser. You will need to appropriately reference sources you use, on the relevant slide. You will need to work as a group; to consider the ideas presented by other members of your group. • You will need to justify your decisions and consider the practicalities of the laboratory work to be undertaken in the undergraduate teaching laboratory. Within a team, all members will have different skills, including with respect to communication. Try and identify your and other group members skills, then consider them in how the group works. While bearing in mind that some individuals can be more vocal than others, try and ensure each member in your group is given opportunities to make suggestions.