Fluoride ion is poisonous in relatively low amounts: 0.2 g of F⁻ per 70 kg of body weight can cause death. Nevertheless,in order to prevent tooth decay, F⁻ ions are added to drinking water at a concentration of 1 mg of F⁻ion per L of water. How many liters of fluoridated drinking water would a 70-kg personhave to consume in one day to reach this toxic level? How manykilograms of sodium fluoride would be needed to treat a 8.50x10^7-gal reservoir?

Q: A Honda Accord gets 24 miles per gallon in the city and is estimated to emit 7 tons of CO2 per year.…

A: Given that 7 tons of CO2 emits from Honda Accord per year. 1 ton = 2000 pounds 1 tree absorb 30…

Q: One gallon of gasoline in an automobile’s engineproduces on the average 9.5 kg of carbon dioxide,…

A: Solution- consumes gasoline 1 gallon at 20 miles journey  consume gasoline at 120× 5000 miles =…

Q: The density of ethylene glycol (anti-freeze) is 1114 kg/m3. How much mass (in kilograms) of this…

A:

Q: Keftab (cephalexin) is prescribed for an elderly patient who weighs 80 kilograms. The order is 10…

A: Mass of patient = 80.0kg  Prescribed dose = 10mg/kg

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: 6.) What is the ideal body weight of an individual which is 5 feet tall? a. 170kg b. 162 kg c. 140kg…

A:

Q: A cheap reliable fertilizer, NH4NO3, adds nitrogen to the soil. If you add 48.5g of fertilizer to…

A: In order to find the amount of nitogen added to the soil we first write down the given data: Mass of…

Q: A pediatrician prescribes the antibiotic amoxicillin to treat a 3year-old child suffering from an…

A: Given : Weight of child = 29 lbs Amount of drug per mL of liquid = 25 mg drug/mL  Dose of drug = 10…

Q: 4. The manufacturers of the aspartame-containing sweetener claim that one packet of their sweetener…

A: As we know that some compounds which are not sugars but happens to be much sweetner than glucose,…

Q: what state of matter is CH3CO2-? It's an ion, do ions have a physical state?

A: The compound considered is acetate ion, CH3COO-

Q: A Canadian, driving in the U.S.A., fuels their car at a cost of US$3.74 per gallon (US).The current…

A: Amount of the car fuel can be calculated as given below:

Q: Use the References to access important values if needed for A sample of volume 244 cm has a mass of…

A: Mass = 1.04 Kg = 1040 g Volume = 244 cm3 Density = ?

Q: According to the National Heart, Lung, and Blood Institute, LDL-cholesterol levels of less than 130…

A: LDL-cholesterol stands for low density lipoprotein cholesterol. These cholesterol are bad for the…

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: How much water will overflow from a basin, if a solid block of glass, with a volume of exactly 101…

A: According to the Archimedes Principle, the mass of the floating body and the mass displaced by that…

Q: How many conversion factor(s) can be found in the following statement? " Americans combined drive…

A: Conversion factors are the mathematical relations between one unit of a physical quantity to another…

Q: An antacid tablet weighing 0.938 g contained calcium carbonate as the active ingredient, in addition…

A: We know that, according to the law of conservation of mass in a chemical reaction, the mass of the…

Q: The formula for making a popular diaper rash paste requires mixing 40 g of zinc oxide powder and 80…

A: we have to calculate the cost of diaper rash paste

Q: Liposuction is a technique for removing fat deposits from various areas of the body. How many…

A:

Q: A mouthwash is 21.6% ethanol by mass. If each botte contains 0.358 pt of mouthwash with density of…

A: The mass of ethanol in each bottle is calculated as,

Q: eine sulfate solution for pain PO q4h as needed. The availability is 30 mg per 1 mL. i.) If the…

A: Given, The codeine sulphate is available as 30 mg per 1 mL. Patient is prescribed to receive 34g of…

Q: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A: Given: Mass of Earth's crust = 2 ton = 2000 Kg.                             (Since 1 ton = 1000 Kg)…

Q: Hydrogen has also been considered as an alternative fuel for vehicles designed to combust hydrogen…

A: Given that a hydrogen engine can achieve 80 miles per kilogram of hydrogen gas. Thus, mass of…

Q: One gallon of gasoline burned in an automobile’s engine produces on the average 9.5 kg of carbon…

A:

Q: Daniel Harris has always enjoyed eating tuna fish. Unfortunately, a study of the mercury content of…

A: According to EPA, the recommended Hg per kg of body weight should be at maximum of 0.1 μg per day…

Q: A child is prescribed a syrup produced by crushing ten carvedilol 25 mg tablets and mixing to a…

A: Given: The number of carvedilol tablets crushed = 10 The mass of each tablet = 25 mg The volume of…

Q: For the treatment of cystic fibrosis, it has been found thatinhaling a mist of saline solution can…

A:

Q: How many pounds of carbon dioxide (CO2) are generated annually due to driving a car based on the…

A:

Q: 1. Which refers to the motion of charges from one place to another? b. Electricity 2. Which of the…

A:

Q: According to the National Heart, Lung, and Blood Institute, LDL-cholesterol levels of less than 200…

A: LDL-cholesterol levels of less than 200 mg of LDL-cholesterol per deciliter of blood Means ; Per…

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

A:

Q: A bottle of drinking water is labeled 24 fluid ounces (710 mL).” What is the mass in milligrams of…

A: Given: Bottle has 24 ounces of water = 710 mL of water. And volume of water = 0.69 fluid ounces.

Q: To wire your stereo equipment, you need 325 centimeters (cm) of speaker wirethat sells for $0.15/ft.…

A: Convert centimetre into feet. 1 cm = 0.0328 foot325 cm = 325 × 0.0328 foot325 cm = 10.66 foot or…

Q: A 12-oz vanilla milkshake at a fast-food restaurant contains547 Calories. What quantity of energy is…

A: 1 calorie = 4.2 joules

Q: Cyanocobalamin, commonly known as Vitamin B12, is generally used in formulating multivitamins. If…

A:

Q: Linus Pauling (Recipient of two noble prizes one for chemistry and another for peace)Wrote a book,…

A: Given, one 500.5 mg tablet contains 20% by mass Vitamin C. The mass of vitamin C in one 500.5 mg…

Q: which gasoline is less is less expensive: gas that cost $2.41 per gallon, or gas that sells $0.78…

A:

Q: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A:

Q: your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150…

A:

Q: One gallon of gasoline in an automobile's engine produces an average of 9.5 kg of carbon dioxide,…

A: Given- 1 gallon gasoline = 9.5 Kg carbon dioxide Consumption rate = 20 miles per gallon Distance =…

Q: according to the national heart, lung and blood institute LDL-cholesterol levels of less than 130 mg…

A: Volume of blood in an average human is,

Q: A solid white substance A is heated strongly in the absence ofair. It decomposes to form a new white…

A: The chemical reaction taking place is,

Q: A 100g of water is mixed to 150g of alcohol (ρ = 0.76 g/ cm3 ). Calculate the resulting density of…

A: we know density is defined as the mass of substance upon volume density=massvolume

Q: The EPA limit for lead in bare soil for children’s play areas is 400 ppm by mass. A contractor is…

A: Parts per million or ppm is term used to express concentration. It is somewhat similar to weight…

Q: he distance between atoms is sometimes given in pico-meters, where 1 pm is equivalent to 1 × 10^–12…

A: Given : distance between layers in pm = 568 pm

Q: In the United States, water used for irrigation is measuredin acre-feet. An acre-foot of water…

A: Given: An acre is 4840 yd2 (a) In an acre-foot, there are 43560 cubic feet of water. Every cubic…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".