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1. A solution of hydrochloric acid at 0.100 M was carefully prepared. If 43.6 mL of this solution were required to neutralize 25.0 mL of a barium hydroxide solution, what is the molarity of the base?
A standardized solution of sodium hydroxide at 0.239 M was used to titrate an unknown acid comprising 3 acid hydrogen ions. Knowing that 32.4 mL of base were required to reach the end point with a sample of 1.95 g of acid, calculate the molar mass of the acid.
An aerosal spray can with volume of 450mL contains 4.0g of propane (C3H8) as propellant. Explain what is the pressure of the gas in the can at 28 degrees C
In a molecule of H2S, the four electron groups around the sulfur atom are arranged in tetrahedral geometry. However, the shape of the molecule is bent. Why does the shape of the molecule have a different name from the name of the electron group ge..
Mass of the tablet : 1.105 g Cost of the bottle : $ 3.99 Number of tables in a bottle: 150 Molarity of the Acid : 0.55 M Volume of the Acid : 0.025 L
Which occupies a larger volume, 600 g of water (with a density of 0.995 g/cm3) or 600 g of lead (with a density of 11.35 g/cm3)? Energy Units
combustion of a 0.9835 g sample of a compound containing carbon hydrogen and oxygen produced 0.3500 g of h2o. what is
Define A mixture of .0375 g of hydrogen and .0185 mol of oxygen in a closed container is sparked to initiate a reaction. Define how many grams of water can form. Explain which reactant is in excess, as well as how many grams of it remain after the..
An inventor claims to have developed a new perfume that lasts a long time because it doesn't evaporate. Comment on this claim. a) A perfume that does not evaporate could be toxic since the molecules never leave the skin.
In collisions with the walls of the container or with other molecules, energy is conserved. Collisions with the walls of the container or with other molecules are elastic. The amount of space occupied by a gas is much greater than the space occupi..
Chlorine gas can be shaped commercially by passing an electric current through a concentrated solution of sodium chloride. The unbalanced equation is NaCl(aq) + H2O(l) = NaOH(aq)+Cl2(g)+H2(g). If the brine contains 430 g of NaCl explain how much H..
This liquid is then diluted with water to form liquid .sulfuric acid, H2SO4, as the only product in the reaction. Write a balanced chemical equation for the formation of sulfuric acid from H2S2O7 when diluted with water.
There are three different possible structures known as isomers for a dibromoethene molecule, C2H2Br2. One of them has no net dipole moment, however the other two do. Depict a structure for each isomer. Comprise H atoms.
Calculate the number of moles of Ascobic acid in the 50.00 ml Sample. Titration Volumes of KIO3 Initial Buret reading/ml trial 1=12.54 trial 2=8.78 Final buret reading/ trial 1=38.74 trial 2=34.93 Volume of KIO used/ml trial 1=? trial 2=?
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