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How many moles of solid aluminum sulfide can be prepared when of 10.0 g of aluminum and 15.0 g of sulfur are heated up to form aluminum sulfide?
Use balanced chemical reaction. Which is the limiting reactant?
A certain substance has a heat of vaporization of 69.72 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.00 times higher than it was at 307 K
The 20 mL of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic,
However, a water transporter was discovered in 1992 and it was named aquaporin. Aquaporin is a single subunit protein that is barrel-shaped and open to both sides of the membrane
A student mixes 50.0mL of 1.00M Ba(OH)2 with 79.9mL of .375M H2SO4. Calculate the pH of the mixed solution.
Consider the following reactions and select the false statement below. CO2(g) + OH?(aq) ? HCO3?(aq) Cr3+(aq) + 6H2O(l) ? Cr(H2O)63+(aq) A. in Cr(H2O)63+ the Cr3+ is attracted to the H2O molecules via ion-dipole intermolecular forces
Question- A crystal lattice has copper at all the corner positions and nickel at all the edge positions in a unit cell. What is the formula of the unit cell
Write a chemical equation (with phase symbols) to show what happens to a formula unit of Pb(NO3)2 when it is dissolved in water. What is the molarity of this solution?
Butadiene (C4H6) reacts with itself to form a dimer with the formula C8H12. The reaction is second order in C4H6. If the rate constant at a particular
Is the conversion of pyruvate ion to lactate ion in the reaction CH3COCO2-(aq) +NADH(aq) + H+(aq) CH3CH(OH)CO2-(aq) + NAD+(aq) a redox reaction
Spanish mahogany has a density of 53 lb/ft^3. Would you be able to lift a piece of mahogany that measured 10in * 12in * 14in
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
An unknown white solid is either NaC2H3O2, AgNO3 or BaCl2. The white solid dissolves in water. The dissolved unknown precipitates when either aqueous potassium carbonate or aqueous lithium bromide is added. What is the unknown
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