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a sample of nitrogen occupies a volume of 600 ml at 60 celcius and 650 mm hg of pressure. what will be its volume at stp?
when ethane (C2H6) is burned, how many grams of oxygen are needed to react with 477 grams of ethane?
Calculate the theoretical yield of C2H5Cl when 138 g of C2H6 reacts with 218 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5CL and HCl.
Concentration of NADH was found by using beer's law using 6.22 mM cm-1 as extinction coefficient. Concentration of NADH = .0212 mM. Moles of NADH that are present in 1.02 mL sample was found by : .0212 mM x 1.02 mL = .021624 mM/mL
Develop an argument based on bond enthalpies for the importance of SiO bonds in substances common in the Earth's crust in preference to SiSi or SiH bonds
A sample of concrete contains cement, gravel, crushed rocks, sand, and water. Each of these contains different metals and minerals and hence has different colors and different properties. Which term or terms could be used to describe this sample o..
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
What type of hybridization is used on the central atom in CHCL3?
Write a balanced net ionic equation for the neutralization reaction and Tartaric acid,( C4H6O6) , has two acidic hydrogens.
HCl according to the following chemical equation? MnO2+4(HCl) --> MnCl2 + Cl2 + 2(H2O)
individual suffering from a high cholesterol level in her blood has 239 of cholesterol per 100 of blood. If the total blood volume of the individual is 5.4 , how many grams of total blood cholesterol does the individual's body contain?
A mixture of CaCO3 and CaO weighing 0.680 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.489 g.
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