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MFAC1523 Lecture Notes - Lecture 16: Megakaryocyte, Prostacyclin, Antibody

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School
UNSW, UNSW Sydney
Department
Medicine
Course
MFAC1523
Professor
Trudie Binder

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Document Summary

Natural clotting mechanisms to stop associated with small vessel injury from any. Haematoma a collection of blond in the tissues vessel type plug. 2) tissue4)as i the greater spasm local the degree of spasm factors the greater traumatised. B tissues vascular also , platelets ( a vasoconstriction. Platelets : ( thrombocytes ) reproduce 1 divide cleared contains cytoplasmic granules , lifespan : 8 days , macrophages thromboxaneaz . 5) prostacyclin affpft fthgromabnotane prostacyclin a glycoprotein coat normal diphosphate ) aggregation be released by has secretory serotonin , adp so platelets and stick platelet to. Adp to platelet causes causes vessel walls adrenaline. 0000 normal exposed collagen at injury vessel of site endothelium. Formation of platelet plug ( cont disrupts endothelium t exposes. * note that large need an sticky to cutfhole , App causes surface of not sufficient small cutlhole building circulating platelet. 1st platelet plug granules adheres progress to a platelet plug is clot layer of aggregation result.

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Related Questions

Please I need clear and neat steps of how to get the answers

HA, a weak acid, with Ka=1.0×10−8, also forms the ion HA−2. The reaction is HA(aq)+A−(aq)⇌HA−2(aq) and its K = 4.0.

1-) Calculate the [H+] in a 1.0 M solution of HA.

2-)Calculate the [A−] in a 1.0 M solution of HA

3-)Calculate the [HA−2] in a 1.0 M solution of HA.

answers;

[HA−2] = 1.8×10−4 M
[A−] = 4.5×10−5 M
[H+] = 2.2×10−4 M ,

[1300 Points :)] [Please provide the process] A monoprotic weak acid, HA, 1.00g, 100g/mol is titrated with NaOH (0.250 M). After the addition of 20.0 ml of NaOH the pH was 5.81. Calculate the initial moles of HA, the moles NaOH added, the moles of HA and A- after the addition of the addition of the NAOH and the pKaof HA. Use the Henderson Hasselbach equation.

HA(aq) + OH-(aq) -> A-(aq) + H2O

1) molHAinitial:

2) molNaOHadded:

3) mol HA after NaOH added:

4) mol A- after NaOH added:

5) pKa:

16. Select the true statement below regarding an A?/HAbuffer.

(1) thepurpose of the buffer is to keep [HA] and [A?] asconstant as possible

(2) HAmust be a stronger acid than H3O+ andA? must be a stronger base thanOH?

(3) strong base added to an effectivebuffer solution will be consumed by HA

(4) the optimal buffer will have low[HA] and[A?] (5)the pKa of HA must beequal to pH of the buffer


Please explain why each is wrong and which is correct.