Jaylaz4663 Jaylaz4663

16-04-2022
Chemistry

contestada

What is the concentration in ppm of sodium fluoride in tap water that has been fluoridated by the addition of 32 mg of naf for every 20 kg of solution?.

Respuesta :

indrawboy indrawboy

16-04-2022

ppm = mg/l = mg/kg

32 mg / 20 kg = 1.6 ppm

Answer Link

Otras preguntas

Can Pi be written as a fraction? .

How does this simulation offer a realistic approach to war and governments? A)Size of country B) alliances C) enemies D)leadership

!!!! Need help with this

What parts of Europe still had an agricultural economy in the early twentieth century?

Marsha deposited $5500 into a savings account 4 years ago. The simple interest rate is 5% How much money did Marsha earn earn in interest?

Match the following items.

The specific heat of water is 4.184 J/g °C and for Ethanol (C₂H6O) is 2.46 J/g°C. If you had 100 g of each substance at the same temperature of 60°C, which wou

Evaluate the expression when x=1/4 and y=1/2. (fractions)

10. Miguel y Carmen_____a las nueve y cuarto. O llegas O llegan O llego O llegamos

(a) Find the Maclaurin polynomials of orders n = 0, 1, 2, 3, and 4, and then find the nth Maclaurin polynomials for the function in sigma notation In (x + 1).