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Rust on an automobile door contains Fe2O3(s). The balanced equation representing one of the reactions between iron in the door of the automobile and oxygen in the atmosphere is given below.
4Fe(s) + 3O2(g) → 2Fe2O3(s)
Determine the gram-formula mass of the product of this reaction. Include proper units.
Write a balanced net ionic equation for the neutralization of equal molar amounts of nitric acid and methyl amine (CH3NH2). Indicate whether the pH after neutralization is greater than, equal to, or less than 7.
estimate how much arginine stabilizes the negative charge of the succinate
Compare the pH of a H2CO3 buffer that contains .10 M H2CO3 and .10 M NaHCO3 with another H2cO3 buffer that contains .15 M H2CO3 and .050 M NaHCO3.
How many grams of body mass does the person lose in about 8 h sleep if all the CO2 and H2O exhaled come from the metabolism of glucose
A steel cylinder contains 120. moles of nitrogen gas at a temperature of 32 C and pressure of 775 torr. After some of the nitrogen gas has been used,
Given: H-H bond energy = 435 kJ, Cl-Cl bond energy = 243 kJ, and the standard heat of formation of HCl(g) is -92 kJ/mol, calculate the H-Cl bond energy.
Balance equation. What is the percent yield if 122 grams of SiO2 are made from 246 g of Cr2O3 by the following equation. Si(s) + Cr2O3(s) - - - - > SiO2(s) + Cr(l)
The tmeperature s increased to 1200 K, so that all CaC204 decomposes to form CaO according to the reactions, The density of the gas mixture at 1200K was 0.70501 g/L. What was the mass of the calcium oxalate initially placed in the vessl?
Calculate the formula mass of each compound given below. Keep at least one decimal place in atomic masses from the periodic table.
What is the overall order of the reaction? b.What is the order with respect to X?To Y? c.In a reaction
The age of a rock was was estimated using 238U radiometric dating. The ratio of 238U to 206Pb (238U decays to 206Pb) was approximately equal to 1. If the half-life of 238U is 4.5 billion y, and if it is assumed there was no 206Pb initially, how ol..
The equilibrium constant for CaCO3 dissolution in water at 25 celsius is 8.7 x 10^-9. Calculate the (G) Gibbs free energy for this process.
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