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The molecular weight of sodium hydroxide is 40.00. How many grams would you need for 150 ml of a 1mM solution? A buffer stock solution is supplied as 50X concentration and you will need 10 liters at 1X, how would you prepare this solution?
contains 17.0 moles of carbon atoms. How many total moles of atoms does the sample contain?
The rate constant for a certain reaction is k = 5.80×10?3s^-1 . If the initial reactant concentration was 0.950 M , what will the concentration be after 3.00 minutes
What is the pH of the sodium phosphate buffer described in problem if 1 ml of 10M NaOH is added? What is the pH of 1 liter of water if 1ml of NaOH is added?
When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.5°C.
A 70 piece of ice at 0 is added to a sample of water at 6. All of the ice melts and the temperature of the water decreases to 0. How many grams of water were in the sample?
when 0.08 moles ammonium chloride are dissolved in enough water to make 677 milliliters of solution, what is the molarity of chloride ions?
Aqueous solutions of phosphoric acid and sodium nitrite are combined, and the following equilibrium is established. H3PO4 (aq) + NO2- (aq) = H2PO4-(aq) + HNO2 (aq). The equilibrium constant Kc for this reaction is greater than one. Based on this i..
a bicycle tire is filled with air to a pressure of 100 psi at a temperature of 100 degrees c. riding the bike on
He is heated until the pressure reaches 3.50 atm. What is the final temperature in degrees Celsius
what mass of sucrose c12h22o11 must be mixed with 543 grams of h2o to make a solution with an osmotic pressure 8.00 atm
what is molarity of the diluted bleach and of the original bleach solution? b. what is the mass of sodium hypochlorite per 100 mL of the stock bleach solution. c. If the density of the bleach solution is 1.05 g/mL, what is the percent of bleach by..
The vapor pressure of bromine, Br2(l) at 25°C is 228 mm Hg.If 2.00 g of liquid bromine is used, what is the final pressure in a 2.0 L flask?
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