How many grams of sodium ion na+ are in toothpaste
How many grams of sodium ion Na+ are in 2.50 g toothpaste. A toothpaste contains 0.24 by mass sodium fluoride used to prevent dental caries and 0.30 by mass triclosan , a preservative and antigingivitis agent. One tube contains 125 toothpaste.
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Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an elliptically shaped surface crack of length 0.16 mm and that has a tip radius of curvature of 0.002 mm when a stress of 1090
In a metal processing facility, the final tailings slurry produced by the process is thicken in a caisson and thickener and pumped out of for disposal. The density of the slurry that leaves the thickener must be maintained at a set point of 75
Consider the distribution of ideal gas molecules among three bulbs (A, B, and C) of equal volume. For each of the following states, determine the number of ways (W) that the state can be achieved
Hydrogen peroxide decays into water and oxygen in a first-order process. Please show me the steps to get answer?
How many moles of NaOH are contained in the 0.0233 L volume of 0.150 M NaOH that is delivered from the buret?
Hydrazine (N2H4) is made by the reaction of ammonia (NH3) with hypochlorite (OCl-). Given the following equation 420 kg of ammonia is reacted with excess hypochlorite to generate 315 kg of hydrazine. What is the percent yield for this unbalanced r
A cylindrical specimen of a brass alloy 10.0 mm (0.39 in.) in diameter and 120.0 mm (4.72 in.) long is pulled in tension with a force of 11,750N (2640 lbf); the force is subsequently released
Starting with an aqueous solution of 75mL of 0.35M NaOCl (kb= 2.8x10^-7) determine the observed pH of the solution at the following points in a titration.
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