/46 5. Which step did Sanjay make an error? Explain. Then, provide the correct answer. 13 Express as a single logarithm Step 1 : 5 log x - 6 logy + 5 log z Step 2 : log x5 - log yo + log z Power Law Step 3 : log x5 - (log y6 + log z5 ) Product Law Step 4 : (log x5 - log yo z5 ) Quotient Law Step 5 : log Solution : log 6. List 3 similarities and 3 differences of the two functions below: 13 y = 5* and y = 10g5 x 7. If log, w = = and logo x + log6 y = 1, then what is the value of 13 10g7 (w4 + 1086(36x2y2) ? 8. In chemistry, the pH scale measures the acidity of a solution. Solutions with pH less than 7 are considered acidic, while solutions with pH greater than 7 are considered alkaline. A pH of 7 is considered neutral. The formula of pH is ph = -logx, where x represents the concentration of hydrogen ions in mol/L. Below is a diagram that conveys the pH of a few common foods and chemicals: ACIDIC NEUTRAL BASIC OR ALKALINE 0 5 8 10 11 12 13 14 Lye Antacids Battery Acid Ammonia Honey - 3.9 Beef - 5.1-6.2 Egg Yolk - 6.4 Coca-cola - 2.5 Rice - 6.0-6.7 Pork - 5.3-6.9 Milk - 6.3-8.5 Cider - 2.9-3.3 Sugar - 5.0-6.0 Apples - 3.3-4.0 Yeasts - 3.0-3.5 Butter - 6.1-6.4 Vinegar - 2.0-3.4 Onions - 5.3-5.8 Pure Water - 7.0 Lettuce - 5.8-6.0 Stomach Acid - 1.0 Crackers - 7.0-8.5 Baking Soda - 9.0 Tomatoes - 4.2-4.1 Lime Juice - 1.8-2.0 Calcium Hydroxide Jams/Jellies - 3.1-3.5 Egg White - 7.0-9.0 Lemon Juice - 2.2-2.4 Strawberries - 3.0-3.5 Potassium Hydroxide