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Jim had a short night, he spent all of it except about 2 hours studying for his chemistry test this morning. As he was brushing his teeth he found that chemistry had over taken his mind. He found himself wondering how many fluoride ions were in the 6.3oz tube of Crest Pro-Health Clean Mint toothpaste he was using. After all his studying, he was confident that he could calculate the number of fluoride ions. Can you? Your assignment is to calculate how many fluoride ions are present in an unopened 6.3 oz tube of Crest Pro-Health.
A sample of He gas (V = 3.0 L) at 5.6 atm and 25 °C was combined with 4.5 L of Ne gas at 3.6 atm and 25 °C in a 9.0 L flask (which was initially evacuated).
What Celsius temperature does oxygen measure .25 L if thepressureis kept constant
In the laboratory you dissolve 16.5 g of aluminum bromide in a volumetric flask and add water to a total volume of 125 mL.
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
The water-gas shift reaction is important in hydrogen gas production. The balanced reaction shown below has a Kp of 9.48 at 700K. If 1.5 atm of H20 are placed in a container and heated to 700K, how much hydrogen gas
in a coffee-cup calorimeter 1.20 g of nh4no3 is mixed with 79.0 g of water at an initial temperature of 25.00degc.
Compute the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water.) tf and tb?
Compound B gave a positive 2,4-dinitrophenylhydrazine test, but a negative result when treated with the Tollens reagent. However, B did give a positive iodoform test. The 1H NMR spectrum for Compound A showed the following
a 50.0 ml solution of 1.2 m hcl at 24.1 deg celsius is mixed with 50.0 ml of 1.3 m naoh also at 24.1 degrees celsius in
A sample containing 3.00 mol of an ideal gas at 25C is expanded isothermally and reversibly from an initial volume if 6.0L to a final volume of 24.0L. Calculate deltaG and deltaA for this process.
n2 is .070 moles o2 is 0.35 moles and co2 is 0.20 moles the total is pressure 1.55 atm what is the pressure of
If 19.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
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