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29. You have the following concentrated commercial reagents on hand; make 1 L of a 6...
A technologist is ask to prepare 100 mL of a 5% (v/v) concentration of sodium hypochloride....
A technologist is ask to prepare 100 mL of a 5% (v/v) concentration of sodium hypochloride. How much solute should they add to the concentrated sodium hypochloride? A CLS needs to make a 1 to 10 dilution with a total volume of 100.0 mu L. How many mu L of patient serum must be used to make this dilution? Consider if you wanted to make 1.00 L of a 0.200 M solution of Na3PO4 (163.94 g). How many grams of....
5. What is the osmolarity of a solution of 40 g/L Nagu (40.00 g/mole)? 6. A...
5. What is the osmolarity of a solution of 40 g/L Nagu (40.00 g/mole)? 6. A saline solution has an osmolarity of 0.996 OsM. What is the milliosmolarity of this solution? 7. How much 100% reagent is required to make 250 mL of 1X reagent? 8. 8. The concentration of a 1/50 dilution is 0.50 g/L. What is the starting concentration? 9. 9. How much 50 mg/dl solution is required to make 100 mL of 5 mg/dl solution? 10. 10....
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The...
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The final volume should be 100mL. Which of the following outlines the correct way to make this dilution? For the other answer options, explain why they are incorrect. A. 10mL of patient sample added to 40mL of saline B. 10mL of patient sample added to 50mL of saline C. 20mL of patient sample added to 100mL of saline D. 20mL of patient sample added to...
You have a stock solution that contains 24 mg/ml of protein. You want to make a...
You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml. You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 1 Std 2 Std 3 Std 4 concentration (mg/ml) 12 6 3...
How much material would you weigh to make one liter of the following reagents: 500 ppm...
How much material would you weigh to make one liter of the following reagents: 500 ppm P in 0.1 N HCl from KH2PO4 and concentrated HCl (12N)
What is the molarity of a solution that contains 10.0 grams of NaOH in 1 L...
What is the molarity of a solution that contains 10.0 grams of NaOH in 1 L of solution? How many grams of HCl are needed to make 500.0 mL of a 1.00 M solution (GMW HCl = 36.46 g)? A 2 N HCl solution is also a ___ molar solution Given a 1.5 M H2SO4 solution, what is the normality of this solution? What is the gram equivalent weight of K2CO3 (K = 39.10 g, C = 12.01 g, O...
How would you prepare a 1/100 dilution (of a concentrated stock solution) in a final vol...
How would you prepare a 1/100 dilution (of a concentrated stock solution) in a final vol of 100 ml? 2.5 L? 87 ml? (ie how much diluent and how much of your concentrated stock)?
You are preparing 1.00 L of a 0.50 M solution of sulfuric acid. You have a...
You are preparing 1.00 L of a 0.50 M solution of sulfuric acid. You have a stock bottle of concentrated acid (18 M). How much 18 M acid do you need to make your dilution in mL?
Question 2 Expressing concentration in different units You have a 0.2 M solution of a compound...
Question 2 Expressing concentration in different units You have a 0.2 M solution of a compound (molecular weight 200) a) How many mmoles are there in the following volumes? i. 2 mL ii. 5 mL ii. 10 mL iv. 100 mL b) Express this concentration in the following units: i. mM; iii. iv. %(w/v); mg/dL; c) How much of this compound would you have to weigh out if you were to make up 100 mL of the solution? d) If...
How could you make 2.5 L of 0.10 M hydrochloric acid? Question 10 (1 point) How...
How could you make 2.5 L of 0.10 M hydrochloric acid?
Question 10 (1 point) How could you make 2.5 L of 0.10 M hydrochloric acid? Hint: This is a dilution. How many moles of HCI in 2.5L of 0.1M? Use the fact that M = ? that M - n moles so # of moles n = M, V =.. O dilute 59.4 mL of 3.0 M HCl to 2.5 L with water O dilute 0.25 L of pure...
A technologist is ask to prepare 100 mL of a 5% (v/v) concentration of sodium hypochloride. How much solute should they add to the concentrated sodium hypochloride? A CLS needs to make a 1 to 10 dilution with a total volume of 100.0 mu L. How many mu L of patient serum must be used to make this dilution? Consider if you wanted to make 1.00 L of a 0.200 M solution of Na3PO4 (163.94 g). How many grams of....
5. What is the osmolarity of a solution of 40 g/L Nagu (40.00 g/mole)? 6. A saline solution has an osmolarity of 0.996 OsM. What is the milliosmolarity of this solution? 7. How much 100% reagent is required to make 250 mL of 1X reagent? 8. 8. The concentration of a 1/50 dilution is 0.50 g/L. What is the starting concentration? 9. 9. How much 50 mg/dl solution is required to make 100 mL of 5 mg/dl solution? 10. 10....
1. You have been asked to make a 1:5 dilution of 20mL of patient sample. The final volume should be 100mL. Which of the following outlines the correct way to make this dilution? For the other answer options, explain why they are incorrect. A. 10mL of patient sample added to 40mL of saline B. 10mL of patient sample added to 50mL of saline C. 20mL of patient sample added to 100mL of saline D. 20mL of patient sample added to...
Question 2 Expressing concentration in different units You have a 0.2 M solution of a compound (molecular weight 200) a) How many mmoles are there in the following volumes? i. 2 mL ii. 5 mL ii. 10 mL iv. 100 mL b) Express this concentration in the following units: i. mM; iii. iv. %(w/v); mg/dL; c) How much of this compound would you have to weigh out if you were to make up 100 mL of the solution? d) If...
How could you make 2.5 L of 0.10 M hydrochloric acid?
Question 10 (1 point) How could you make 2.5 L of 0.10 M hydrochloric acid? Hint: This is a dilution. How many moles of HCI in 2.5L of 0.1M? Use the fact that M = ? that M - n moles so # of moles n = M, V =.. O dilute 59.4 mL of 3.0 M HCl to 2.5 L with water O dilute 0.25 L of pure...
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