# chemistry

posted by .

Suppose the concentration of sodium in Phoenix tap water is 70 ppm (mass based), then what is the concentration of sodium in milligrams per liter? The density of water is 1 g/mL. The answer units are mg/L.

• chemistry -

One easy and valuable conversion unit to memorize is this.
1 ppm = 1 mg/L.
That's all I can help you with since you did not give the substance that was 70 ppm.

## Similar Questions

1. ### chem

A 4.55L sample of water contains .115g of sodium ions. Determine the concentration of sodium ions in ppm if the density of the solutions is 1.00g/mL. Ok so ppm=mass of solute/mass of solution *10^-6 so we have the mass of the solute …
2. ### Chemistry

The Label on a one pint bottle of water lists the following components. If the density is the same as pure water and you drink 3 bottles of water in one day, how many milligrams of each component will you obtain?
3. ### Chemistry

The U.S. Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 6.0×10−2 percent sodium by mass, have to be …
4. ### chemistry

Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA …
5. ### chemistry

The environmental protection agency (EPA) wanted to study the particular materials in the atmosphere in Bogus Basin at 7200 ft elevation. The sampled air rate was at 1.00 liter per minute and was allowed to run 24 hours per day for …
6. ### chemistry

A solution of sodium bicarbonate is prepared by adding 45.00g of sodium bicarbonate to a 1.00-L volumetric flask and adding distilled water until it reaches the 1.00-L mark. Calculate the concentration of sodium in units of: a) milligrams …
7. ### Chemistry

The FDA recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation?
8. ### Chemistry

The FDA recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation?
9. ### chemistry

A) Determine the concentration in molarity (M) of a crystal violet solution based on a measured absorbance of 0.545 at 590 nm at a path length of 1.0 cm . B) Based on your determined concentration (in molarity,M), how many milligrams …
10. ### math

How many gram of sodium fluoride should be added to 100000 liter of drinking water containing 0.6 ppm of sodium fluoride to provide a recommended concentration of 1.75 ppm?

More Similar Questions