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Mass of magnesium: 0.6 g Moles of magnesium? Mass of magnesium oxide: 1.00 g Moles of magnesium oxide?
If you want to dope GaAs to make an n-type semiconductor with an element to replace Ga, which of the elements below would you pick
58.0 mL of a 1.30 M solution is diluted to a volume of 228 mL. A 114-mL portion of that solution is diluted using 141 mL of water.
This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in this chamber is measured to be exactly 2.20 L, at the temperature is held constant at 297 K. After two hours the pressure inside the ..
Peaks that appear to the right of 3000 cm-1 in an IR spectrum are characteristic for which stretching vibration
A solution is made by mixing 52.1 grams of propul chloride, C3H7Cl, and 38.4 grams of propyl bromide, C3H7Br. what is the vapor pressure of propyl chloride in the solution at 25 celsius
For the reaction: H2(g) + CO2 (g) X CO(g) + H2O(g) Kc= 0.771 at 750 degrees C. Consider the situation where we have 0.50 mol of each reactant and product in a 1 L. Is the reaction at equilibrium (prove your answer mathematically using Q)?
Water has a considerably higher boiling point and lower vapor pressure than other molecules of similar or larger molar mass. For example, dinitrogen (N2), methane (CH4), etc.
Compare the experimental mole ratio of NaHCO3 to NaCl with the theoretical mole ratio. Explain the difference. The experimental mole ratio is 1:1.
predict how many grams of calcium chloride would be produced.
Carbon dioxide, which is recognized as the major contributor to global warming as a greenhouse gas, is formed when fossil fuels are combusted, as in electrical power plants fueled by coal, oil, or natural gas
Calculate the pH of the buffer if 10 drops of 0.1mol/L of NaCH3COO is added to 10 drops of 0.1 mol/L of CH3COOH. Equations useful to obtain the solution
1.5 mol of oxygen are mixed with an unknown amount of nitrogen in a 2.0 L container at a temperature of 26.0C. If the final pressure of the mixture is 20.3 atm, what is the number of moles of nitrogen in the container
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