What's the percentage of fluoride ion in a toothpaste containing 1.1% sodium flouride?
What's the percentage of fluoride ion in a toothpaste containing 1.1% sodium flouride?
A toothpaste contains 0.242 %% by mass sodium fluoride used to prevent dental caries and 0.31 %% by mass triclosan C12H7Cl3O2C12H7Cl3O2, an antigingivitis agent. One tube contains 119 g of toothpaste. (Figure 1) How many fluoride ions, F−, are in the tube of toothpaste? How many grams of sodium ion, Na+, are in 1.80 g of toothpaste? How many molecules of triclosan are in the tube of toothpaste?
A toothpaste contains 0.24% by mass sodium fluoride used to prevent dental caries and 0.30% by mass triclosan C12H7Cl3O2, a preservative and antigingivitis agent. One tube contains 119 g toothpaste.a. How many moles of NaF are in the tube of toothpaste?b. How many fluoride atoms F– are in the tube of toothpaste?c. How many grams of sodium ion Na+ are in 1.50 g toothpaste?d. How many molecules of triclosan are in the tube of toothpaste?
A toothpaste contains 0.230 % by mass sodium fluoride used to prevent dental caries and 5.7 % by mass KNO3, which decreases pain sensitivity. One tube contains 119 g of toothpaste. 1) How many grams of sodium ion, Na+, are in 2.50 g of toothpaste? 2) How many KNO3 formula units are in the tube of toothpaste?
A toothpaste contains 0.230 % by mass sodium fluoride used to prevent dental caries and 5.7 % by mass KNO3, which decreases pain sensitivity. One tube contains 119 g of toothpaste. 1) How many grams of sodium ion, Na+, are in 2.50 g of toothpaste? Express your answer using three significant figures. 2) How many KNO3 formula units are in the tube of toothpaste? Express your answer using two significant figures.
The Ksp of barium fluoride is 1.00 x 10-6 The Ksp of calcium fluoride is 3.90x 10-11, An aqueous solution of sodium fluoride is slowly added to a water sample that contains barium ion (2.70x10-2M) and calcium ion (3.90x10-2M). What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
An aqueous solution of sodium fluoride is slowly added to a water sample that contains barium ion (4.65x10-2 M) and calcium ion (7.40x10-2 M).The Ksp of barium fluoride is 1.00x10-6. The Ksp of calcium fluoride is 3.90x10-11. What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
A solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015 M in NaF and 0.010 M in Ca(NO3)2 Will a precipitate form in the mixed solution? If so, identify the precipitate. Express your answer as a chemical formula. Enter noreaction if no precipitate is formed. Submit Request Answer
The most abundant cation in seawater is the sodium ion. The evaporation of seawater gives a mixture of ionic compounds containing sodium combined with chloride, sulfate, carbonate, bicarbonate, bromide, fluoride, and tetrahydroxyborate. [tetrahydroxyborate = B(OH)4–]. Write the chemical formulas of all these compounds. 1. Sodium chloride 2. Sodium sulfate 3. Sodium carbonate 4. Sodium bicarbonate 5. Sodium bromide 6. Sodium fluoride 7. Sodium tetrahydroxyborate
An aqueous solution of sodium fluoride is slowly added to a water sample that contains barium ion (2.50×10-2M ) and calcium ion (4.75×10-2M ). What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
4) Why is the pH of a 0.1 M solution of sodium fluoride not equal to 7? A) The sodium ion reacts with water to release hydroxide ions, making the solution basic. B) The floride ion reacts with water to release hydroxide ions, making the solution basic. The sodium ion reacts with water to release hydrogen ions, making the solution acidic. D) The fluoride ion reacts with water to release hydrogen ions, making the solution acidic.