Excess reagent - Study guides, Class notes & Summaries

Stoichiometry the mole ratios among the reactants and products in a chemical reaction chemical equation a description of the identities and proportions of reactants and proucts reactants substances consumed during a chemical reaction products substances formed during a chemical reaction molecular mass the mass in amu of one molecule of a molecular compound molar mass the mass of one mole of a substance formula mass mass in amu of one formula uni...

Urinalysis and Body Fluids || Success Questions & Answers (100% Correct) Urinalysis and Body Fluids || Success Questions & Answers (100% Correct) Why is the first-voided morning urine specimen the most desirable specimen for routine urinalysis? A. Most dilute specimen of the day and therefore any chemical compounds present will not exceed the detectability limits of the reagent strips B. Least likely to be contaminated with microorganisms because the bladder is a sterile environment C. Mo...

Principle of PFA-100 correct answers -Assessment of platelet function -Time required for platelet plug to occlude the aperture is an indication of platelet function Reagent Used in PFA-100 correct answers Citrated whole blood Purpose of PFA-100 correct answers Test platelet function Interpretation of results for PFA-100 correct answers Collagen/EPI → 78-199 seconds Collage/ADP → 55-137 seconds Disease Association with PF-100 correct answers VWD, Bernard-Soulier Glanzmann's Th...

Describe the proper technique for performing reagent strip testing. - Answer •Strips have chemical pads on plastic strip •Compare the color change on pads w/in required time frame •Dip strip into well-mixed specimen at room temp •Remove excess urine on edge of cup •Blot edge of strip on absorbent pad •Wait req time •Read in good lighting List four causes of premature deterioration of reagent strips, and describe how to avoid them. - Answer •Moisture •Volatile chem...

A; Animals serve as a reservoir of infection" is the correct answer because Shigella only infects humans while Salmonella is found in many animals. Both have diarrhea as the major symptom. Endotoxin is produced by all gram negative bacteria and exotoxin is only produced by Shigella. A major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can: A. animals serve as a reservoir of infection B. diarrhea become the major symptom C. endotoxin play a ...

• Typical NMR chemical shift for methyl protons adjacent to a ketone 2.1-2.6 ppm • Level of solvent on a TLC plate Below the spots when first placed in the developing jar, and then it will eventually rise to the top past the spots Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Column Chromatography Provides a method for the separation and isolation of individual components of a mixture •...

CHEM 209: QUIZ 1 with Complete and Verified Answers 1. What is a "back titration"? Answer: It's a technique where the concentration of an analyte is determined by reacting it with an excess of a known reagent. 2. What is the balanced chemical equation for the complete reaction between CO32− and HCl? Answer: CO32−(aq) + 2H+(aq) → H2O(l) + CO2(g) 3. What is the balanced chemical equation for the complete reaction between KHP (KHC8H4O4) and NaOH? Answer: KHC8H4O4(aq...

Determine the limiting reagent and excess reagent in the reaction you will perform in this experiment. correct answer: Excess Reagent: methanol Limiting Reagent: triglyceride Unsaturated Fatty Acids correct answer: have one (or more) C=C bonds. Saturated Fatty Acids correct answer: have no C=C bonds. The addition of water to sodium methoxide produces _______________ and ________________ correct answer: Sodium Hydroxide; Methanol After completion of the experiment, where do you d...

ASCP MLT Exam Practice Questions With 100% Correct Answers Updated 2024 (Graded A+) 1 unit or PRBC - answer Raises hemoglobin 1g and hematocrit 3% Leukoreduced RBCs - answer Less than 5 x 10^6 to prevent febrile non hemolytic reactions Cryoprecipitate - answer Factor 8 vWF Fibrinogen For DIC 6 hours Platelets 1unit - answer Irradiated blood - answer Prevent GVHD Ulex europaeus - answer Anti H lectin Dolichos biflorus - answer Anti A1 lectin Amount of H greatest to least - answer O A...

What are saturated vs unsaturated fatty acids? correct answer: •Saturated fatty acids have no C=C bonds (their C's have max # of Hs) •Unsaturated fatty acids have one or more C=C bonds (monosaturated = one double bond) (polyunsaturated = more than 1 double bond) •Z (cis) are naturally occurring double bonds; E (trans) are artificial double bonds How is biodiesel produced commercially? Which method is predominant? correct answer: ***1) Base catalyzed transesterification of oil with ...