How many grams of sodium fluoride are in a toothpaste
The active ingredient in toothpaste is sodium fluoride, an anticavity agent. a 170 g tube of toothpaste lists the concentration of sodium fluoride a s0.24%. how many grams of sodium fluoride are in a toothpaste.
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A solution of 11.3g of electrolyte in .105 kg of water freezes at -2.36 degree centigrate at standard temperature. what is the molecular weight , in gram per mole, of this compound. kf =1.86
A solution of I2 was standardized with ascorbic acid. Using a 0.1137-g sample of pure ascorbic acid, 26.75 mL of I2 were required to reach the starch end point. What is the tiger of the iodine solution?
In your own words, explain how to obtain the “expected value of perfect information” for any payoff table, which has probabilities associated with each state of nature. Then, provide an example, drawing from any of the payoff tables in
a sample of helium gas initially at 37 degrees celsius, 785 torr and 2.00L was heated to 58.0 degrees celcius while the volume expanded to 3.24L. What is the final pressure in atm.
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C?
A calorimeter containing 200.0 mL of water was calibrated by carrying out a reaction which released 15.6 kJ of heat. If the temperature rose 3.25 degrees celcius then the heat capacity of the calorimeter inclusing the water is?
What is the half reaction showing the reduction of dichromate ion? and what is the half reaction showing the oxidation of iron (II) ion?
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration, expressed as a percent by mass?
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