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Based on the ideal gas law, what volume of hydrogen gas do you predict would be evolved given the number of moles of zinc and the temperature and pressure in the room during the first part of the experiment? The formula of the ideal gas law is PV=nRT and you can rearrange the equation in order to solve for the volume as follows V= nRT/P (V is the volume, n is the number of moles, R is the gas constant 0.08206 atm*L/mol*K, and T is the temperature in Kelvin (Kelvin =oC + 273.15).
How many grams of NaOH are needed to prepare 250 g of 1.00% NaOH solution in water?
1000g of Na2HPO4 is dissolved in 100mL of water. using mass balance and charge balance deterimne the pH of the resulting.
which of the following refers to the ground-state electron configuration of an atom? q options 1s12s1 kr5p1 ne3s13p2
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.070 mol lysine (HL), 0.055 mol aspartic acid (H2A), and 0.0080 mol NaOH. Consider just acid-base chemistry.
A sample of gas is removed from the canister and takes up 256 ml container at 100 degrees Celsius and has a pressure of 750 mm Hg. The original canister is reweighted and is now found to have a mass of 24.87 grams. What is the molar mass of the ga..
the volume of 4 cubic meters of gas is kept under constant pressure. its tempeture is increased from a minus 73 degrees celsius to 127 degrees celsius. What is the new volume of the gas?
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
Explain the significance of a horizontal line connecting point on the lower curve with a point on the upper curve
A student wanted to determine the molar concentration of acetic acid in a commercial vinegar sample. He used a volumetric pipet to deliver 3.00 mL of vinegar to an Erlenmeyer flask, added about 30 mL of water and 3 drops of phenolphthalein indicat..
A particular metallic element, M, has a heat capacity of 0.36 J * g^-1 * K^-1. It forms an oxide that contains 2.90 g of M per gram of oxygen. (a) Using the law of Dulong and Petit (Cp x M = 25 J per mole per Kelvin), estimate the molar mass of th..
An aqueous solution of hydroiodic acid is standardized by titration with a 0.174 M solution of sodium hydroxide. If 30.5 mL of base are required to neutralize 29.2 mL of the acid, what is the molarity of the hydroiodic acid solution?
a 2.067-g sample of a monoprotic acid was dissolved in water. it took 25.24 ml of a 0.1578 m naoh solution to
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