| | | |To seperate a Neurotoxin and a Food Preservative under the same name‚ using calculations to figure out which is which. | | | |
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Determining the Limiting Reactant and Percent Yield in a Precipitation Reaction Objectives: Observe the reaction between solutions of sodium carbonate and calcium chloride. Determine which of the reactants is the limiting reactant and which is the excess reactant. Determine the theoretical mass of precipitate that should form. Compare the actual mass with the theoretical mass of precipitate and calculate the percent yield. Materials: Balance 0.70 M sodium carbonate solution‚ Na2CO3(aq)
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iodide and 10.0 mL of 0.200 M lead (II) nitrate are mixed together. 1. Write the net ionic equation describing the reaction. 2. Calculate the theoretical yield. Show calculations. 3. a) If a student obtains 0.890 g of lead(II) iodide‚ calculate the percent yield? Show calculations. b) Suggest possible reasons for a percent yield greater than 100%. c) Suggest possible reasons for a percent yield less than 100%. Lead
Free Stoichiometry Chemical reaction Chemistry
shouldn’t use a piece of paper because due to the surface area and weight of the paper‚ the fall would be slower which would affect further calculations. However‚ if you used a weight which was heavy enough‚ the effect of air resistance would be minimal. For our experiment‚ we would use several things which would help us gather data so that our calculations would be nearest to the true value of g (acceleration due to gravity). One object which we used was a pulley system. We put a string through
Free Force Classical mechanics
Business Entities 5 Calculations of NPV‚ IRR and Payback Period 5 Selection of Projects 8 Changes in the NPV with cost of capital 8 Changes in the IRR with cost of capital 9 Difference of sensitivity between Long-term and Short term NPV 9 NPV versus IRR 9 Conclusion 10 References 11 ABSTRACT This paper covers the implementation of three investment appraisal methods. Initially‚ importance of investment appraisal has been analyzed. Secondly‚ calculations have been done for Net
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FAFNA – Profit-Cost-Volume Problem SHOW YOUR WORK FOR CALCULATION PROBLEMS Based on the following information‚ complete the problems listed below on the Airwolf Helicopters Company. [In $ Dollars 000] Sales……………$75‚000 Gross Margin…60% Op. Expenses..$12‚000 # Units shipped…15 Operating Profit? Gross Profit (GP)= Gross Margin x Sales = 75‚000 x 0.60 =45‚000 Operating Profit (OP)= GP-Operating Exp (OE) OP= 45‚000-12‚000 OP= 33‚000 The remaining questions are based on the following
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UnitPrice as real Display "Marc’s Unit Pricing Program" Display "This program will break down the weight of an item from pounds to ounces‚ and will then give you the price per ounce for the product listed." Call Input Data Module Call Perform Calculations Module Call Output Results Module End Main Module REM now we get all the pertinent information that we need. Input Data Module Display "Name of the Item?" Input Name Display "How much does it cost?" Input Price Display "Item Weight
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Explanation Simple PV calculation. Question 4 (10 points) Jeff has $1‚000 that he invests in a safe financial instrument expected to return 3% annually. Marge has $500 and invests in a more risky venture that is expected to return 7% annually. Who has more after 20 years? And how much does he/she have in FV terms? Your Answer Score Explanation Marge; 1935 ✔ 10.00 Correct. You know how to calculate FVs! Total 10.00 / 10.00 Question Explanation FV calculations of simple one-shot cash
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one year? (Enter just the number without the $ sign or a comma) Answer for Question 3 You entered: Your Answer Score Explanation 189 Correct 5.00 Correct‚ You know it has to be less than $200. Total 5.00 / 5.00 Question Explanation Simple PV calculation. Question 4 (10 points) Jeff has $1‚000 that he invests in a safe financial instrument expected to return 3% annually. Marge has $500 and invests in a more risky venture that is expected to return 7% annually. Who has more after 20 years? And how
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150-400) A) Calculation of PCV (packed cell volume or haematocrit) PCV = RBC (cells/l) x 10¯¹² x MCV (fl) RBC = 2.23 x 10¹²/l MCV = 88fl or 88 x 10/l PCV = 2.23 x 88 x10 PCV = 196.24/1000 PCV = 0.196 (NR 0.4-0.54) B) Calculation of MCH (mean cell volume) MCH = Hb (g/dl) x 10 RBS (cells/l) x 10¯¹² Hb = 77g/l or 7.7g/dl RBC = 2.23 x 10¹²/l MCH = 7.7 x 10 =34.52 pg (10¯¹²g)/cell (NR 27-32 pg (10¯¹²g)/cell) 2.23 C) Calculation of MCHC (mean
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