
need to show all of your work that you used for calculation please! thank you! 6)...
need to show all of your work used in calculation! thank
you!
Read the questions carefully, and report your answer in scientific notation. Remember to show all of your work used in calculations, Write clearly to communicate to me all that you know. Use complete grammatically correct sentences. Please put your name and section on both the front and back of this test. Thanks 1) From p.21 #1, 2, 3, 4 How many significant figures are in the following: 3.1ml_2...
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you!
5) From p.43 #5 A doctor orders Medrol to be given 1.5mg of drug / kg of the patient's body weight. Medrol is an anti-inflammatory administered as an intramuscular injection. If a child weighs 72.5 pounds and the available stock is 20 mg/mL, how many milliliters does the doctor prescribe? 1 pound = .454kg
Please show all work. Thanks. You have 1.00g of your organic product dissolved in 50 mL of water. The distribution coefficient of this compound in ether and water is 5. How much of your compound would be extracted by one 60 mL portion of ether? How much would be extracted if you used three 20 mL portions instead? (Show your work!!)
need to show all of your work used in calculation
3) From p.34 #4e 0.005ks 4) From p.41 #3 Convert 0.020L to cm3 Page 4 of
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Traffic flow in a highway was 2000 veh/h and the average speed vehicles was 80 km/h. As a result of an accident the ro d is blocked. A queue develops with a density of 275 veh/km. Determ e the rate at which the queue grows in unit of vehicles per hour. (5 markah/marks)
please help with a) b) c) and please show the work. thank
you!
***Turn in this sheet for up to 5 Data points. Record all data in your lab book.*** UNKNOWN NUMBER_ 66 MOLARITY of NaOH_0.0980 M Rough Trial 1 Trial 2 Mass HX (8) NIA Initial NaOH buret reading (ml) 0.46 13 g 1.2 mL 24.1 ml Final NaOH buret reading (mL) Volume NaOH added (mL) 22.9 mL WRITE THE BALANCED CHEMICAL EQUATION FOR THIS EXPERIMENT: Show calculation of:...
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Question 1 This is a multiple-choice question, but you need to show your work to support your choice. Which of the following would form a buffer if added to 250.0 mL of 0.150 M SnF2? (a) 0.100 mol of HCI (b) 0.060 mol of HCI (c) 0.040 mol of NaOH
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**For full credit you need to show your work for the multiple-choice questions ** Stoichiometry 1. 100.0 g of silicon react with 150.0 g of Nitrogen according to the following reaction 3Si(s) + 2N2(g) - SiN(S) a. Which reagent is in excess? b. What is the theoretical mass of silicon nitride expected to be produced? c. Assuming different experiment, what mass of Si is needed to produce 240.2 g of silicon nitride if the reaction has...
please explain #8 and #9. show all work. thank you
8. An antifreeze solution is prepared by adding 50.0 mL of ethylene glycol, C2H602 (density = 1.12 g/mL) to 50.0 g of water. Calculate the freezing point of this solution. 9. Which has the highest boiling point? (all solutions are in the same solvent) 1.0 M Co(NO3)2 2.0 M KCI 0.5 M C2H4O2
please answer 1-5 and show and explain steps clearly, thank you
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1. How many milliliters of 13.2 MH.SO, are needed to prepare 600.0 mL of 0.10 M H SOC? (4.5 mL) 2. 1.60 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the resulting solution? (0.210 M) 3. A solution containing 292 g of Mg(NO3)2 per liter has a density of 1.108 g/mL. What is the molality...