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How do you estimate energy change using bond reactions in a complete methane combustion
Calculate the density. Copper (II) ion radius of 0.96A and the sulfide ion has a radius of 1.84A. Calculate the % of the cube occupied by the copper(II) sulfide.
A student mixes 347 mL of water and 254 mL of 8.70 x 10-5 M greenfood dye solution. What is the concentration of this new dilute solution of green food dye?
If 5.0 g of H2 are reacted with excess CO, how many grams of CH3OH are produced, based on a yield of 86%? CO(g) + 2H2(g) -> CH3OH(l)
If 43.2 ml of 0.105 M KMnO4 were required to reach the endpoint of a 14.8g bleach sample, what was the perrcentage of H2O2 in the sample?
Draw the structure(s) of the alkene(s) with the molecular formula C6H12 that have two methyl branches on the same carbon.
The thermal decomposition of phosphate into phosphorous and molecular hydrogen is a first order reaction : 4PH3(g) -----> P(g) + 6H2(g), The half life of the reaction is 35.0 s at 680*c
1.00 moles of sucrose (C12H22O11), and 1.20 moles of glucose. Sucrose and glucose are nonvolatile. What is the mole fraction of water in this solution?
how many water molecules are in one cell? This can be a rough calculation, using a water density of 1g/mL and 3x10-23g as the mass of one water molecule
A solution is prepared by dissolving 14.7 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 56.00 mL of water.
What is the percent purity of the calcium hydroxide if the titration requires 21.42 mL of the acid to reach the endpoint
If a 1.00g sample of a carbon-containing compound is burned in air, 0.75g of CO2(the only carbon-containing product) is produced. What is the mass carbon in the compound
The crystalline form of rhodium (Rh) is composed of face-centered cubic unit cells. If the density of rhodium is 12.42 g/cm3 at room temperature
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