Question 19Which of the following is the best option for transferring 20 mL of a solution?Use a 5mL serological pipette 4 timesBUse a 20 mL Mohr pipette onceCC Use a 10 mL volumetric pipette twiceD Use a 10 mL Mohr pipette twice

The transfer of liquids and solution uses various types of apparatus and instruments depending on…

Which of the following is the best option for transferring 20 mL of a solution? A Use a 5mL serological pipette 4 times B Use a 20 mL Mohr pipette once C Use a 10 mL volumetric pipette twice Use a 10 mL Mohr pipette twice

Which of the following is the best option for transferring 20 mL of a solution? A Use a 5mL serological pipette 4 times B Use a 20 mL Mohr pipette once C Use a 10 mL volumetric pipette twice Use a 10 mL Mohr pipette twice

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 109AE: Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray...

See similar textbooks

Similar questions

Francis A. Santos Which of the following is the best option for transferring 20 mL of a solution? (A Use a 5mL serological pipette 4 times (B Use a 20 ml Mohr pipette once Use a 10 mL volumetric pipette twice Use a 10 ml Mohr pipette twice
How much (in ml) of a 1:400 w/v stock solution should be used to make 4L of a 1:2000 w/v solution? 650mL 500mL 900mL D. 800m
How much of the suspending agent is needed to prepare a 60-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad. 2000 mL a. 0.06 g b. 30 g c. 24 g d. 0.006 g
How much of the preservative is needed to prepare a 120-mL preparation of Aluminum hydroxide gel based on this formulation? Ammonium alum 800 g Sodium carbonate 1000g Peppermint Oil 0.01% (0.01 g/100mL) Sodium benzoate 0.1% (0.1 g/100mL) Purified water, qs ad.2000 mL a. 0.12 g b. 60 g c. 48 g d. 0.012 g
1. A client is receiving Pronestyl at 30 ml/hr. The solution available is 2 g Pronestyl in 250 ml. D5W. Calculate how many milligrams per minute the client is receiving. 2. A client is receiving nitroglycerin 50 mg in 250 ml. DSW. The order is to infuse 500 mcg/min. What will you set an infusion pump to deliver? 3. Order: Dobutrex 250 mg in 500 ml. DSW at 3 mcg/kg/min. The client weighs 80 kg. What dosage in mg/hr is the client receiving? 4. A client is receiving Isuprel 2 mg in 250 ml. DSW. The order is to infuse at 20 ml/hr. Calculate the following (round to hundredths if necessary): a. mg/hr. b. mcg/hr C. mcg/min 3.1 5. Dobutamine 500 mg in 250 ml. D5W has been ordered to titrate at 4-10 mcg/kg/min for a client weighing 116 lb. Assume the infusion pump can only deliver whole ml/hr. a. Determine the range of acceptable flow rates to administer the medication to the client via infusion pump.
8:27 O O L O * * a 35% . Sign in to edit and save changes to this file. 22- LeN Aum Might Aum Len ventrice Rght vertricie Aorta | Pulmorary Veins | Pulnanary Artary | Superiar Vera Cava inferior Vena Cava Bicuspit valve Tricuspid vave ortie valve Puamonary valve 23 - II. Balance the equations below. 1. N2 + H2 NH2 KC1O3 → KCI + O2 NaCl + F2 → NaF + Cl2 7. P+ O2 → P2O5 3. KCIO3 → КСІ + O2 8. H2 + O2 → H2O 4. S2 + O2 SO3 9. H2O + O2 - H2O2 5. Ag2O → Ag + O2 10. CH4 + O2 CO2 + H2O III. Illustrate or draw the following Star Constellation. ORION URSA MINOR CASSIOPI II 6. 2.
A solution contains 6 umol NazSO4 in 284 ml. How many ppm Nat does it contain? A.W Na=23 S=32 0=16 0.00255 0.01050 0.97170 0.09717 0.10500 9.71700 2.55000 0.25500
0.2 to 1.0 mg/ml: For each concentration, a volume of 1.0 mL should be prepared. How will you prepare these standards using micropipettes and which one would you use? There is a: 0,5-10 microliter pipette; 2-20 microliter pipette 20-200 microliter pipette 100-1000 microliter pipette.
2. A standardization with 0 % ascorbic acid used up 21.20ml of DCPIP. When the same DCPIP was used with fresh and commercial apple juice, the volume of DCPIP used is 21.90ml and 24.80 ml respectively. Calculate % loss of vitamin C in the making commercial fruit juice compared to fresh juice.
Potassium ion concentration in the interstitial fluid is 5 mEq/L. What milligrams percent concentration is this? _________mg %
1. You give your home health patient an unopened 500-mL bottle of guaifenesin and tellthem to take 2 teaspoons 4 times a day as ordered. They ask you how long the bottlewill last. 2. You are shadowing a nurse during a clinical who receives an order to adjust the infusionrate of a pump so that 1.6 mg of lidocaine are being delivered per minute. Hanging is a100 mL piggyback containing 0.4 grams lidocaine, a 0.4% solution. How many mL perhour should the piggyback be set to deliver? How long will the piggyback last? 3. Phenobarbital 180 mg/m 2 /24 hours given every eight hours is ordered for a childwhose BSA (body surface area) is 0.29 m 2 . How many mg will you need if the child willbe on the medication for 10 days? 4. You are going to mix a 1:10 bleach solution with water to make 500 mL of a 1:35 bleachsolution. How much 1:10 bleach solution should you use?(I recommend using the C1V1=C2V2 formula) 5. As a home health nurse you need to help a client make…
Table of chemicals and reagents with their physicochemical properties (name, molecular formula, molecular weight, pKa, melting point, boiling point, etc.) Write a short outline or a flow diagram of the procedure List and safety issues Read and understand the MSDS information for each chemical used in this practical Experimental procedure Please do not scratch the clear sides of the UV cuvettes as this will invalidate your results. Part 1: Preparation of a calibration curve A calibration curve should be constructed using at least five concentrations of the pure paracetamol standard supplied in the range 3-15 ug/mL as follows: Weigh about 150 mg of paracetamol accurately and transfer to a 200 mL volumetric flask. Add 50 mL of o.1 M NaOH and dilute to about 100 mL with deionised water (DI). Shake and make up to volume with DI water. Dilute 10 mL of the resulting solution to 100 mL (volumetric flask) with DI water (= stock solution). Prepare standard solutions containing 3, 6, 9, 12 and 15…