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A 14.8 g mixture of sodium carbonate and sodium bicarbonate was dissolved in enough water to make 400 mL of solution. When the 400 mL of solution was treated with an excess of 2.00 M sulfuric acid and boiled to remove all the gas in solution, 3.73 L of dry carbon dioxide gas measured at 740 mm Hg and 22 C were obtained. Calculate the molarity of the sodium carbonate and sodium bicarbonate in the 400 mL of solution
determine what concentration of oh - is needed to dissolve 0.015 mol ofnbspznoh2 zinc hydroxide in a liter of solution
a sample of sodium reacts completely with 0.142 kg of chlorine forming 234 g of sodium chloride. what mass of sodium
What is the emprical formulae of the compound whose composition by mass is 1.32g of carbon dioxide contain 0.36g of carbon.
The question is a slab of steel measures 1.01m x 3.72m x 11.1cm. Steel has a density of 7.86g/cm^3. What is the mass of the slab of steel?
When a person moves from the fed to the fasting state following a meal, there is an incase in the mobilization of the components of triacylglycerol. all of the following help to maintain blood glucose levels during the first 12 hours of the fast
A gas mixtue of Ne and Ar has a toal pressure of 4.00 atm and contains 16.0 mol of gas. If the partial pressure of Ne is 2.75 atm, how many moles of Ar are in the mixture
The flask is opened and more gas is added to the flask. The new pressure is 795 mm Hg and the temperature is now 26 °C. How many mol of gas are in the flask?
a 4.0 gram sugar cube is dissolved in a 350 milliliter teacup. what is the molarity of the sugar solution.
Carbon emits photons at 745 nm when exposed to blackbody radiation. How much energy would be obtained if 44 g of carbon were irradiated?
The carburizing gas holds the surface composition at 1% carbon for all t > 0. If D=1.4 x 10^-7 cm^2/sec: (a) Calculate the time required at the carburizing temperature
Which of the following combinations of quantum numbers are allowed? A) n=4, I=2, mi=1, ms= -1/2 B) n=2, I=2, mi=2, ms= 1/2 C) n=1, I=0, mi=1, ms= 1/2 D) n=4, I=1, mi=1, ms = 1/2
Once the solvent front reaches the top of the chromatographic paper,solvent begins to evaporate from the top edge of the paper, and the remaining solvent continues to move up the paper.
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