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If a typical antacid tablet contains 2.0 g of sodium hydrogen carbonate, how many moles of carbon dioxide should one tablet yield?
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
write the balanced equation for the reaction of the active ingredients in Gaviscon Extra strength with excess acid.
Energy in the amount of 421 J is added to a 69g sample of water at a temperature of 23.0 C. What will be the final temperature of the water?
Gas ammonia can be decomposed to give 3.00 by mass of hydrogen and 14.0 by mass of nitrogen.what mass of nitrogen is obtained.
What is the Ksp value for KHT at 10°C, 23.5°C, 35.0°C and 50.0°C?
The first ionization energy of bismuth is Ei1 = +703 kJ / mol. What is the longest possible wavelength of light that could ionize an atom of bismuth?
A balloon is filled with helium to a volume of 1.05 x 10^3 L on the ground, where the pressure is 745 mm Hg and the temperature is 20. °C. When the balloon ascends to a height of 2 miles
An evacuated (empty) 276 mL glass bulb weighs 129.6375 g. Filled with an unknown gas, the bulb weighs 130.0318 g. Calculate the gas density in g/L.
If 50.00mL of propylene glycol has am ass of 51.80g, what is its density in SI units (kg/m^3).
Why is it particularly important to wash the cupric hydroxide intermediate in the synthesis of cupric acetate (verdigris)? Be specific about what is being removed and why it matters.
we then titrated both the aqueous and organic layer. for organic layer, we used 0.1M (S2O3)2- for aqueous layer, we used 0.01M (S203)2- find concentration [I]2 (subscript 2) for aqueous and organic layer
Gaseous ammonia (NH3, 2.00 L, 703.8 torr, 23.8C) reacts with aqueous sulfuric acid (H2SO4, 0.500M, 175mL) to produce solid ammonium sulfate. 4.8275 g of product is isolated.
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