If you drink the recommended 2.5 liters of water in one day, and the water is 1.0ppm F-, you have consumed how many grams of fluoride ion??
If you drink the recommended 2.5 liters of water in one day, and the water is...
To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.900 ppm fluoride (F–). (a) How many grams of F– must be added to a cylindrical water reservoir having a diameter of 6.44 × 102 m and a depth of 47.26 m? (b) How many grams of sodium fluoride, NaF, contain this much fluoride?
Do you drink the recommended amount of water each day? Most Americans don't! On average, Americans drink 4.5 eight-oz servings of water a day, 36 total ounces per day. A sample of 40 education professionals was randomly selected and their water consumption for a 24-hour period was monitored; the mean amount consumed was 38.7 oz. Assuming the amount of water consumed daily by adults is normally distributed and the standard deviation is 11.7 oz, is there sufficient evidence to show...
To aid in the prevention of tooth decay, it is recommended that drinking water contain 0.700 ppm fluoride, F. How many grams of F must be added to a cylindrical water reservoir having a diameter of 1.43 x 102 m and a depth of 88.52 а m?
3. What is the molarity when we have 0.75 moles of solute in 2.5 liters of solution? 4. We have 58.44 grams of NaCl in 2 liters of solution. What would be the molarity of the solution? 5. How many grams is 1 mole of CaCl? 6. If I need to make up IL of a 0.5M soln of CaCl, how many grams would I need? 7, Describe how you would make a 5% glucose solution. Glucose-C6H12O6 8. Calculate the...
About 9g of this drink mix powder would be required to make one cup of drink, would this provide your recommended daily allowance of vitamin C? If not, how many cups would you have to drink to get enough vitamin C?
Find the molarity of the following solutions: Molarity - mole/Liters 1 liter = 1000 ml pter 1) 2.5 moles of NaCl is dissolved to make 0.050 liters of solution. 2) 3.0 moles of AgCl is dissolved in enough water to make a 2.0 liter solution 3) 4.2 moles of lithium fluoride are dissolved in 2 liters of solution. 4) 18 grams of hydrochloric acid, HCl is dissolved to make 1 liter of solution. Stoichiometry 1. 2Na+2H,0 ® 2NaOH+H, a). How...
64. A client was given a 16-ounce container of water to drink throughout the day. If the client drank of the container, how many ounces did the client drink?
When you drink cold water, your body must expend metabolic energy in order to maintain normal body temperature (37.0°C) by warming up the water in your stomach. Could drinking ice water, then, substitute for exercise as a way to "burn calories?" Suppose you expend 490. kilocalories during a brisk hour-long walk. How many liters of ice water (0°C) would you have to drink in order to use up 490. kilocalories of metabolic energy? For comparison, the stomach can hold about...
When you drink cold water, your body must expend metabolic energy in order to maintain normal body temperature (37.0°C) by warming up the water in your stomach. Could drinking ice water, then, substitute for exercise as a way to "burn calories?" Suppose you expend 510. kilocalories during a brisk hour-long walk. How many liters of ice water (0°C) would you have to drink in order to use up 510. kilocalories of metabolic energy? For comparison, the stomach can hold about...
Drinking water contains 1.50 ppm sodium fluoride. How many liters of water could be fluoridated using 0.735 lb of NaF (1.0 lb = 454 g).