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A student reacted 0.22 g of zinc (Zn) with excess hydrochloric acid (HCl) to generate hydrogen gas (H2).
How many moles of hydrogen gas could be generated?
The protons that give rise to the signal at 7 ppm are more shielded than the protons that give rise to the signal at 9 ppm. B) The protons that give rise to the signal at 7 ppm are less shielded than the protons that give rise to the signal at 9 p..
How many grams of Na3PO4 will be needed to produce 425 mL of a solution that has a concentration of Na+ ions of 0.900 M ?.
A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 342 mL. What will its volume be if an additional 0.22 of gas is added to the cylinder?
An unknown solution forms a white precipitate when treated with 6 M HCl. The precipitate is incompletely soluble in hot water but dissolves completely in NH3
If 12.5 g of CCl3F is enclosed in a 1.1 -,L container, will any liquid be present? What is the mass of the liquid?
Consider the formation of n-butyl alcohol and NaBr in the presence of H2SO4. If you start with 1.31g of n-butyl alcohol and end up with 1.79g of n-butyl bromide
The decomposition of hydrogen peroxide is first order in H2O2. 2H2O2 -----> 2H2O + O2 The rate constant for this reaction at 20 C is 1.8 * 10^-5 s^-1
What is the overall order of the reaction?
What is the average rotational energy assuming that only J=0 to 4 levels are populated in the vibrational ground state n=0?
The production of iron and carbon dioxide from Iron (3) oxide and carbon monoxide is an exothermic reaction? how many kj of heat are produced when 3.40 mol Fe2O3 reacts with excess of CO.
Determine which monomer will have the higher degree of polymerization (DP) and by how much?
calculate the percentage of empty space in 1 mol of water at 25C. Obtain the density from the experiment " Some Measurements of Mass and Volume." The volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms.
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