On the diagram of the filter paper below, create a particulate representation for CuCro4 after watching the demonstration video run for a period of time. Note that the positive and negative terminals of the battery are represented in the diagram by + and - symbols. Question 2 +
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- In chemistry laboratories, it is faster and more convenient to measure out liquids by volume with pipets than by mass with an electronic balance. Therefore, when prepare solutions, volume ratio, instead of mass ratio is used sometimes. We can define a new term, volume % of a component, similar to mass % of a component. Let’s use a solution that is made of A and B as an example to explain this concept. If the volume % of A is 70%, the solution is made of 70 mL A with 30 mL B. A solution is prepared by mixing acetonitrile, CH3CN, and methanol, CH3OH, together. The volume percentage of acetonitrile is 35.84%. The density of acetonitrile is 0.786 g/mL and the density of methanol is 0.791 g/mL. Assume that the volume is additive. What is the mass percentage of acetonitrile in the solution? ____________% What is the molarity of the solution? __________ M What is the mole fraction of acetonitrile in the solution? ____________ What is the molality of the solution? __________ mOn a balance mass an amount of potassium hydrogen phthalate (KHP) needed to neutralize approximately 12 ml of 0.1 M NaOH(aq), and completely transfer the KHP to a clean 125-ml Erlenmeyer flask. Record the mass of the KHP at least to The thousandth decimal place. please answereCalculate the number of Kilograms of NaF per year of 100,000people if the daily consumption of water per person is 132.0 gallons (Sodium Fluoride is 45.0 percent Fluorine by mass. 1 gallon =3.79L, 1year+365 days,density of water+1.0g/l
- The O'Keefe's have 50 gallons of cucumbers for pickling. They have supplies of potassium hydroxide, sulfuric acid and ethanol on hand. The 1.5M KOH solution costs $5 per liter, 9 M H2SO4 solution costs $7.50 per liter, and ethanol costs $25 per liter. A 50 g jar of alum from the grocery store costs $8.59. Do you think it’s worth the time and trouble for Richard and Diane to make their own alum from discarded aluminum cans? Explain your answer showing all calculationsA patient is to receive 10 mEq of potassium gluconate (MW = 234) four times a day for 3 days. If the dose is to be a teaspoonful of syrup vehicle. How many grams of potassium gluconate should be used and what volume in mL should be dispensed to provide the prescribed dosage regimen?Cocaine (C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been used for centuries as a local anesthetic and stimulant. Illegal cocaine arrives in the USA either as a pure compound or as the hydrochloride salt (C17H21O4NHCl). At 25oC, the salt is very soluble in water (2.50 kg/L), but pure cocaine is much less so (1.70 g/L). What is the maximum amount of salt (in gram) that can dissolve in 50.0 mL of water? [1 mark.] When a 25 mL aqueous solution that contains 62.50 g of the salt is treated with NaOH, the salt is converted to pure cocaine. How much water (in liters) is needed additionally to dissolve the formed pure cocaine? Round your final answer off to two decimal points. C17H21O4NHCl(aq) + NaOH(aq) → C17H21O4N(aq) + H2O(l) + NaCl(aq)
- Q5. As part of the aspirin synthesis lab, the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out? Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as KOH. An example of such a balanced chemical reaction is shown here: C51H98O6 + 3KOH à C3H5(OH)3 + 3C16H31O2K Triglyceride Soap If, during the saponification reaction, 231.5 g of C51H98O6 is mixed with 231.5 g of KOH and 160 g of soap is produced: Calculate the theoretical yield of soap (in grams), C16H31O2K, and indicate which species is the limiting reactant. Provide your answer to 2 decimal places (5). Calculate the percent yield for this reaction. Provide your answer to 1 decimal place (1). Show ALL steps and equations involved in your calculations. Remember to label all steps clearly and use appropriate units.Q5. As part of the aspirin synthesis lab, the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out?Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as NaOH. An example of such a balanced chemical reaction is shown here:C57H110O6 + 3NaOH à C3H5(OH)3 + 3C18H35O2NaIf, during the saponification reaction, 228.5 g of C57H110O6 is mixed with 211.7 g of NaOH and 180 g of soap is produced: a. Calculate the theoretical yield of soap (in grams), C18H35O2Na, and indicate which species is the limiting reactant. Provide your answer to 2 decimal places. b. Calculate the percent yield for this reaction. Provide your answer to 1 decimal place. Show ALL steps and equations involved in your calculations. Remember to label all steps clearly and use appropriate unitsI submitted these responses and they were incorrect. Are there any other suggestions?
- In the production of a bottled alcoholic mudslide, 3 ingredients are mixed together and bottled: Stream A: Vodka (41.17% ethanol, the balance is water) Stream B: Coffee liqueur (17.10% ethanol, 1% coffee solids, the balance is water) Stream C: Irish cream liqueur (17.82% ethanol, 21.05% sugar, 14.05% cream fat, the balance is water) The product needs to contain 24.49% ethanol and 6.48% sugar for it to qualify as a mudslide. If your target production is 328 kg/d, how much coffee liqueur is needed?Seawater consists of many important elements in the form of salts dissolved in the water. At 25°C the mass percentage of salts in seawater will total 3.5% m/m. The density of seawater at this temperature and salt percentage is 1.024 kg/L. Study the chart and answer the questions below: 1. The chart assumes 1000.0 g of seawater. What volume, Vsoln (L), does this correspond to at 25 °C? 2. The diagram claims that chloride ions make up 55% m/m of all salt ions. Confirm this number. if possible, I would like handwritten answers with calculations. Thanks :)The photo below shows a picture of an agate stone. Jack, who picked up the stone on the Lake Superior shoreline and polished it, insists that agate is a chemical compound. Ellen argues that it cannot be a compound. Discuss the relative merits of their positions.