Lead has a density of 11.34 g/mL. Oxygen has a density of 1.31 x 10 g/mL. 17,18) What volume, in mL, does 1.00 gram of lead occupy? 19,20) What volume, in mL, does 1.00 gram of oxygen occupy? 21) Are the volumes the same?
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lead has a density of 11.34 g/ mL. Oxygen has a density of 1.31 x10^-3 g/mL
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- The following nutrition information is listed on a box of crackers: Serving size 0.50 oz (6 crackers) Fat 4 g per serving Sodium 140 mg per serving a. If the box has a net weight (contents only) of 8.0 oz, about how many crackers are in the box? b. If you ate 10 crackers, how many ounces of fat did you consume? c. How many servings of crackers in part a would it take to obtain the Daily Value (DV) for sodium, which is 2400 mg?On Roger’s visit to his doctor, he complains of feeling tired. Dr. Akash a med tech and a medical Doctor, withdraws 10.0 mL of blood, which is sent to the lab and tested for iron. When the iron level is low, a person may have fatigue and decreased immunity. The normal range for serum iron in men is 80 to 160 mcg/dL. Roger’s iron test shows a blood serum iron level of 44 mcg/dL, which in dicates that Roger has iron-deficiency anemia. His doctor orders an iron supplement. One tablet of the iron supplement contains 50 mg of iron. Applications 1.Write an equality and two conversion factors for Roger’s serum iron level. How many micrograms of iron were in the 10.0-mL sample of Roger’s blood? Write an equality and two conversion factors for one tablet of the iron supplement. How many grams of iron will Roger consume in one week, if he takes two tablets each day? Each tablet contains 50 mg of iron, which is given for iron supplementation.A prescription for allergies reads one dose of Promethazine 0.100 g, three times a day. The pharmacist dispenses 25 mg Promethazine tablets. How many tablets will need to be administered per dose? What dose of Promethazine will this patient need to take in 24 hours?
- A male patient has been diagnosed with diminished thyroid function. His doctor prescribes a dosage of 0.150 mg of Synthroid to be taken once a day. If each tablet contains 75mcg of Synthroid , how many tablets (total) are taken in a span of one week?Mass of sample = 0.2492g Number of insects = 6 Initial watch glass weight = 90.7712g Weighing of watch glass after hexane evaporation = 90.8850g Mass of crude fats = 0.1138g Percent of crude fats in tissue sample = 45.67% 1.) For adults, the recommended daily intake of fats is around 60g. Based on the class results above, how many grams of the tissue analyzed would you have to consume to meet the daily requirement? 2.) How many insects would have to be consumed to meet the daily requirement? 3.) Butter is about 85% fat, and a typical person spreads about 3g of butter on a piece of toast. How many bugs would you have to spread on your toast for an equivalent amount of fat? 4.) The crude fat could also be converted to methylated fatty acids and used as a biofuel in diesel engines and aircraft. Note the mass of the biofuel is essentially the same as that of the crude fats used to make it. a) If the biofuel has a density of 880g/L, how many grams of insects would be needed to make a…Children’s Chewable paracetamol contains 80.mg of active ingredient per tablet. If the recommended dosage is 10. mg/kg, how many tablets are needed for a 70.lb child? (1lb = 453.6 g) Show all your calculations
- 6.) What is the ideal body weight of an individual which is 5 feet tall? a. 170kg b. 162 kg c. 140kg d. 152 kg 7.) As a student your physical activity is considered which of the following? a. bed rest b. light c. moderate d. sedentary 8.)This element regulates several important physiologic and biochemical processes including neuromuscular excitability, blood coagulation, secretory process, membrane integrity, and plasma membrane transport a. calcium b. magnesium c. iron d. potassium 9.) A micro mineral which is an essential component of blood a. Cobalt b. chromium c. molybdenum d. iron 10.) Fiber requirements are provided by which of the following? a. Meat b. Milk c. sweets d. fruits and vegetablesQuestion 1 1. Explain how the following experimental errors affect the final calculation of the kilocalories per gram for a food item. Be specific as to whether the final value will be higher or lower than if the error had not been made. a. The student misread the scale and recorded 110.3 g for the final mass of the soda can plus water instead of 101.3 g. b. Part of the unburned marshmallow fell off before the final mass was determined. c. The food would not keep burning and had to be relit several times. d. The thermometer got stuck in the aluminum foil while the food was burning and the final temperature was made with the thermometer in the air above the water and not in the water.a sample of sodium carbonate Na2CO3 is being dried. after 1 hour of drying the mass of the sample was 0.337g. after an additional 30 minutes of drying the mass of the sample is 0.333g what is the percent change between the first and second measurement? if to be considered dry two consecutive measurements must have a percent change of less than or equal to plus or minus 1% is the sample dry?
- A sample sodium is being dried. After 1 hour drying, the mass of the sample was 0.337g. After an additional 30 minutes of drying, the mass of the sample is 0.333g. What is the percent change between the first and second meaasurement? if to be considered "dry", two consecutive measurements must have a percent change <_ +- 1%; is the sample dry?An infant ibuprofen suspension contains 100 mg per 5.0 mL suspension. The recommended dose is 10 mg of ibuprofen per kg body weight. If, your child weight 46.31 lbs, how many teaspoons (tsp) should you give your child? Note that 1 lb = 453.59 g and 5 mL = 1 tsp.You are asked to prepare an injection containing 1 vial of vaccine. The vial contains 12.5 mg of Tice BCG, and is then diluted to 50 mL with sterile physiological saline. What is the final concentration in weight per volume?units - % w/v