68. How many grams of sodium fluorideshould be added to 100,000 liters ofdrinking water containing 0.6 ppm ofsodium fluoride to provide a recom-mended concentration of 1.75 ppm?69. If a city water supply has a limit of 250ppm of nitrate ion, what is the maximumamount of nitrate ion, in grams, that maybe present in a 10,000-gallon reservoir?

As per company guideline we are supposed to answer only one question. for other solution kindly…

Answered: How many grams of sodium fluoride…

How many grams of sodium fluoride should be added to 100,000 liters of drinking water containing 0.6 ppm of sodium fluoride to provide a recom- mended concentration of 1.75 ppm?

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter9: Surfaces And Solids

Section9.1: Prisms, Area And Volume

Problem 37E: Zaidah plans a raised flower bed 2 ft high by 12 ft wide by 15 ft long. The mulch, soil, and peat...

See similar textbooks

Related questions

Q: A radiator has 16 L of a 36% antifreeze solution. How much must be drained and replaced by pure…

A: Let x be the amount of 36% antifreeze to be drained and replaced with pure antifreeze.Then 16 - x is…

Q: A radiator has 15 L of a 20% antifreeze solution. How much must be drained and replaced by pure…

Q: The beaker contained 400 mL of a solution that was 20% alcohol. How many milliliters of a 50%…

A: This question is based on percentage.

Q: You are to give a client one tablet labeled 0.15 mg and one labeled 0.025 mg. What is the total…

A: The dosage of one tablet = 0.15 mg The dosage of second tablet = 0.025 mg Hence, The total dosage is…

Q: How much carbon dioxide emissions will youcause by using your 250 watt laptop for 3 hours? Express…

Q: ) A chemistry teacher needs to make 10 L of 42% sulphuric acid solution. The acid solutions…

Q: How much water should be added to 14ml of 10% alchohol solution to reduce the concentration to 7%?

A: let 'x' represent the amount of water, in ml, added, then the total volume of the solution becomes…

Q: How much water must be added to 10 L of a 40% acid solution to dilute it to 30% acid solution?

A: Given: 10 L of a 40% acid solution

Q: 2. How many gallons of a plant food that is 9% nitrogen must be combined with smother plant food…

A: Given information:

Q: Calculate the amount of Lidocaine required to compound 1 ounce of 2% (w/w) lidocaine dental gel.…

A: Solution:Part-IGiven:- Lidocain dental gel = 1 ounce =…

Q: If a child accidentally swallowed 2 fluidounces of FEOSOL Elixir, containing 2/3 gr of ferrous…

A: The unitary method is a very important method that is used in mathematics. When the value of a…

Q: A small metal bar, whose initial temperature was 20° C, is dropped into a large container of bowling…

A: Let T(t) be the temperature of the bar after t time Given that T(0)=200C T(1)=220 C

Q: Assume you are to take a 500 mg pill every 4 hrs for a week. Instead, you take it every 3hrs. By how…

Q: How much water should be added to 16 ml of 12% alcohol solution to reduce the concentration to 8%?

A: Find the amount of water.

Q: A pot contains 6 L of brine at a concentration of 120 g/L. How much of the water should be boiled…

A: Given, A pot contains 6 L of brine at a concentration of 120 g/L.

Q: How many pounds of CO2 would you be responsible for emitting if you took a bus and traveled 164…

A: Given Data: The distance travelled by bus is: d=164 miles The distance covered by bus per gallon is:…

Q: A goldsmith mixes 10oz of a 35% gold alloy with 20oz of a 17% gold alloy. What is the percent…

A: We have to find concentration of the resulting alloy if a goldsmith mixes 10oz of a 35% gold alloy…

Q: if you mix 10 liters of pure water with 15 liters of a 30% alcohol solution, what is the…

A: It is given that 15 litres of a 30% alcohol solution is diluted with 10 litres of pure water. We…

Q: If the length and width of a rectangular solid are each decreased by 20%, by what percentmust the…

Q: A 510 mL IV bag contains a 30% dextrose solution. How much of the original solution must be replaced…

A: Given that a 510 mL bag contains a 30% dextrose solution. The original solution is replaced with a…

Q: A vat contains 4000 litres of wine with an alcohol content of 10%. How much of this wine must be…

A: Let x litres of wine be removed and is replaced by a wine with an alcohol content of 17%. Then,…

Q: How many fluid ounces of Elixir would you give a patient who is receiving 1,500,000 units of an…

A: Given, Patient receiving 1,500,000 units of an antibiotic Antibiotic contains Elixir 3, 000, 000…

Q: What amount of pure acid must be added to 400mL of a 40% acid solution to produce 75% acid solution?

A: Let x mL has to be added

Q: A vat contains 4000liters of wine with an alcohol content of 10%. How much of this wine must be…

Q: If John has a body density of 1.058 kg/L, what is his body fat percentage? (Answer to 1 digit after…

A: According to SIRI equation the body fat percentage is, %fat = [(4.95/D) – 4.50] × 100, where D is…

Q: How many mL of solution will be infused in 4 hours if the flow rate is 20mL/h?

Q: A pharmacist needs to make 400 mL of a 3% KCl solution by diluting a 6% KCl solution. How many mL of…

A: The initial percentage = 6% The final percentage=3% So the percentage of KCI decreased by final…

Q: An empty Boeing 747 weighs about 175 tons. How much does it weigh in ounces? If this same Boeing 747…

A: Part (a) - Weight of Boeing 747 = 175 tonsWe know that,1 ton = 32000 ouncesThen,175 ton = 175×32000…

Q: Find how much more energy was released by an earthquake of magnitude 6.9 than by an earthquake of…

A: Solution: use formula Log E = 11.8+1.45M

Q: How many gallons each of 15% alcohol and 10% alcohol should be mixed to obtain 5 gal of 12%…

Q: Describe a situation where each of the following quantities might be useful. -20 gallons per hour in…

A: We need to describe each situation (a)-20 gallons per hour in the bathtub -20 mean in every hour 20…

Q: A 40 gram alloy containing 35% gold is to be melted with a 20 gram alloy containing 50% gold. How…

Q: A room measures 4 m by 7 m and the ceiling is 4m high. Aliter of paint Covers 20 sg m. How many…

Q: How many times more intense is an earthquake of magnitude 8.2 than an earthquake of magnitude 7.5?

Q: 6 Work out how many complete loads of washing each of these bottles will give. One complete wash…

A: Since multiple questions are asked, we will solve the first question for you. To get the solutions…

Q: How much water should be evaporated from 40% v/v alcohol in order to prepare 3000 ml of 60% ( v/v)…

Q: What is the annual fuel cost for a car driving 26,000 km per year with a fuel rating of 9.7 L/ 100…

Q: A carpet is made with a blend wool and other fibers. If the concentration of wool in the carpet is…

A: Given that the concentration of wool in the carpet is 75% and the carpet weighs in 161b. To find the…

Q: How long will it take to purge a 15ft section of 6in pipe with a flow rate of 35cfh

A: Given information Length of the section L=15 ft=15×12=180 in Hence, L=180 in Diameter of the pipe is…

Q: A barista needs to mix a 20% coffee solution with concentrated coffee (100%) to produce 9 liters of…

A: Let x be the amount in liters of mixture of concentration 20% and y be the amount in liters of…

Q: A radiator has 13 L of a 35% antifreeze solution. How much must be drained and replaced by pure…

Q: One mole of gas expands isothermically to double its volume. If the gas temperature is 340 k what…

Q: If 2L of solution needs to be administered through an IV over 24hours, then how many mililitres of…

Q: If 12 doses of 1½ml are taken from a bottle that contains 40ml , what will be the remaining…

Q: In term of concentration of Hydrogen Ions, How many times more times acidic is a glass of Orange…

Q: I have a large pot containing 6 liters of soup broth. If I divide the soup broth into 3lg liters for…

A: Solution...

Q: Suppose you use 260 fl ozs of liquid laundry detergent every 13 weeks. How much liquid detergent (…

A: It is given that, In every 13 weeks the quantity of liquid detergent used=260fl ozs And according to…

Q: A pot contains 5 L of brine at a concentration of 80 g/L. How much of the water should be boiled off…

A: Let x = liters of water to be boiled off.

Q: 1: How many millilitres of a concentrated acid would need to be added to 30 ml of 20 % topical acid…

Question

68. How many grams of sodium fluoride
should be added to 100,000 liters of
drinking water containing 0.6 ppm of
sodium fluoride to provide a recom-
mended concentration of 1.75 ppm?
69. If a city water supply has a limit of 250
ppm of nitrate ion, what is the maximum
amount of nitrate ion, in grams, that may
be present in a 10,000-gallon reservoir?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Series$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.

Similar questions

In a classroom designed for 30 students, the air conditioning system can move 450 cubic feet of air per minute. (a) Determine the ventilation rate per child in a full classroom. (b) Estimate the air space required per child. (c) Determine the minimum number of square feet of floor space required for the room when the ceiling height is 30 feet.
A commercial cherry grower estimates from past records that if 21 trees are planted per acre, then each tree will yield an average of 33 pounds of cherries per season. If, for each additional tree planted per acre (up to 24 additional trees), the average yield per tree is reduced by 1 pound, how many trees should be planted per acre to obtain the maximum yield per acre? What is the maximum yield? Question content area bottomIn order to get the highest yield of....pounds, ..... trees should be planted per acre.
16. Assume that in 2015, the average American (18 and over) ate 5.46 lbs. of food per day.• How many grams of food is that per person per year?
I need solution with in 30 mtz please it's urgent I will upvote u
(a) The service elevator at AR Hector Financial Complex has a maximum capacity of 2870 lbs.If the elevator operator weighs 205 lbs and has to move hundreds of boxes from the ground floor tothe Penthouse, if each box weighs 65 lbs, what is the maximum number of boxes that can besafely conveyed on the elevator on each trip? (b) The borough of Pan Sherzando charges homeowners $75.24 per month plus $3.86 per1000 litres for water usage in excess of 10,000 litres. In 2019 one homeowner’s monthlybill ranged from $137.00 to $245.08. Find the range for the water used by that homeowner.
2) A physician orders a drug to be administered to a patient weighing 36 lbs. The dose is 55 mg/Kg TID for 7 days. How many mg will be given for one day? *
In developing a paint line process for an appliance manufacturer, a given component on a conveyor belt passes a given point at a rate of 35 ft in 3 min into a drying booth. If an object must be in the drying booth for 10 min, how long should this booth be (in ft and inches)? (Enter the maximum number of whole feet and then the remaining inches. Simplify your answer completely.)