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Dr. TS You found lead in blood collected from children living within 5 km from the Ship Channel. Calculate weighted average lead concentration (mg/L) in their blood. Age group (n) Average lead concentration (1ug/dL) 25 1-2 years (30) 3-4 years (50) 5-6 years (50) 7-8 years (40) 9-10 years (60) 30 35 40 40

The medicine can conditionally be divided into two parts: the active substance and excipients. An active substance is a substance that directly affects the body. Excipients are needed so that the active substance is better absorbed by the body (for example, so that the tablet dissolves only in the stomach, and not earlier). The active substance for a number ofdrugs are:a) KCl - replenishing potassium deficiency,b) KBr - sedative,c) KI - replenishing iodine deficiency, d) CH3COOK - diuretic,e) KMnO4 - disinfectant. Determine the mass fraction of potassium in the above drugs (the mass fraction of excipients for all a)-d) preparations should be equal to 95%, for KMnO4 there are no auxiliary substances). Determine the pH of 0.1 M solution of salts mentioned in a) - e) (appropriate constants find in literature).

Below is the therapeutic (effective) and lethal dose data for a new experimental cancer drug, compound X. What is the approximate ED50 value? lethal effective (therapeutic) dose curve dose curve 100 75 % subjects responding 50 25. 4 6. 8 10 12 mg of experimental drug, compound X 9 mg 3 mg 12 mg 6 mg 50%

This pre-analytical variable can have an effect on chemistry tests which are read visually by spectrophotometry:   Question 8 options:   all answers are correct   icterus   lipemia   hemolysis

This is not a graded question. Subparts 4-5

Help Explain one effective or ineffective aspect of this graph.

1) Which of the diet sodas have the highest concentration of caffeine? Which standard best reflects this concentration?

OnCourse Connect Assessment: Chemistry x Copy of spread_of_islar x = The Spread of Islam -G x M Inbox (904) - aarojame A Classes boncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID: 12390724) A student dissolved 15 grams of pure acetic acid (CH,COOH) in enough water to make 100. milliliters of solution. Given the atomic masses provided on the periodic table, what is the molarity (M) of the acetic acid solution? a 0.025 molar D0.40 molar © 2.5 molar O 4 molar A B B 1 2 4 5 6 7 8 9 10 3. O Save/Exit 4 sn TESS

A Life Science-1803035-377210-1 A Life Science-1803035-377210-1 1803035.agilixbuzz.com/student/142171010/activity/b13bdb49b1d84a84a3aff52cc918e067 Todigy Jackson-Wonder E. E Edulastic: Formativ. RL Home Zearn Math: Top-rat. A Who was the capta. Netflix M Wes mical Reactions - Show it > Life Science-1803035-377210-15 / Unit 7: Chemical Reactions/ Week 23 - Chemical Reactions/ Monday, Lesson 107 - 2/8/21 Identifying the Parts of a Chemical Reaction. Identify the reactants and products in the chemical reaction below. Identify the reactants: CH4 + 202 --> CO2 + 2H2O Your answer re attempting to view Google Drive co ts google.com/Login If it still d new tab Identify the products: CH4 - 202 --> CO2 + 2H2O Yok an Identify the reactants: NaCi Na CI OUS ACTIVITY New version available (30 220) GET IT NOW WHAT ARE REACTIONS?A WHAT ARE REACTIONS?- READ IT

You are interested to know the Q10 value for mean heart rate (# of beats/10 sec) for a species of crab for the temperature interval of 25°C - 35°C. To find this value, you collect data for these six temperatures and calculate mean heart rate (# of beats/10 sec) for each temperature. Here is the data: 10°C 15°C 20°C 25°C 30°C 35°C Mean Heart Rate (# 23.67 23.89 24.33 27 35.89 37.78 beats/10 sec) What is the Q1o value for heart rate (# of beats/10 seconds) for the temperature interval of 25°C - 35°C? Round your answer to two decimal places.

O University of Tampa - Prod - My x Bb Assignments - Introductory Cher x 101 Chem101 b My Questions | bartleby Ô https://app.101edu.co Not syncing Question 2 of 10 Submit The average adult human burns 2.00 x 10° kcal per day in energy. What is this rate in kJ per hour ? STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1 4184 349 1000 0.001 1.15 x 105 4.184 60 2.00 x 10° 2.01 x 10° 24 20.0 J cal kJ min kcal/day kcal hr 9:26 PM P Type here to search a A O G E D 4) 10 5/4/2021

Chemistry You are the only doctor in a clinic that is cut off from the outside world by violent storms and landslides. A 30-year-old woman suffering from tachycardia is brought in. You can see she is likely to die without treatment, and although you have very few drugs, you have propranolol, a beta blocker, in injectable vials. You decide to give the woman intravenous propranolol. The pharmacokinetics of propranolol include a clearance of 50L/hour and a half-life of 3 hours. If an intravenous infusion of propranolol is started at a rate of 0.5mg/minute, approximately how long would it take to reach 93.75% of the final steady-state concentration? 3 hours 50 minutes It would depend on the dosage 12 hours

1) Which of the diet sodas have the highest concentration of caffeine? Which standard best reflects this concentration?

17. When drugs are absorbed into the body and then eliminated, a graph of concentration in the body vs. time will have the general shape shown at right. Using a drug with a slower elimination rate will Absorption 0.9 0.8 Elimination 0.7 0.6 the area 0.5 under the curve. 0.4 A. decrease 03 B. increase 0.2 C. not change 0.1 20 30 40 50 60 70 Time Concentration

60+ 50 True False 40- kcal/mol 30 20 10 0 course of rx The reaction will proceed spontaneously

Based on a grade 11 chemistry student, answer the following question based on the provided information in the provided information: Do you think Mary died due to an overdose of medication? Use evidence from your calculations to support your reasoning. Mary's weight is 50 kg.

Given the Ksp for Ag2CrO4 is equal to 1.20 x 10-12, calculate the percent error in your experimentally determined value for average Ksp (this will be an extremely large percentage – think about why).

Please do question 5 for me and please don’t return in it just write one sentence for each box