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1. Aluminum has a face centered cubic (fcc) structure with an atomic radius of 0.143 nm and an atomic weight of 26.98 g/mol. (a) Calculate the density of Al from this information. (b) What is the planar density of atoms in the (110) plane (and sketch how they are arranged).
2. The density of niobium is 8.58 g/cm3. It's atomic mass is 92.91 g/mol and its structure is bcc. (a) calculate the lattic parameter and the atomic radius from this information. (b) What is the planar density of atoms in the (110) plane (and sketch how they are arranged).
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
Determine what ventilation rate (minimum) in m3/hr will be essential to keep the carbon monoxide concentration in his garage from the dangerous level of 1600 ppmv? What is your answer in this case?
Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.
Draw one specific example each of a beta-diketo compound and one example of an alpha
0.134 mole of KCl and 0.185 mole of CaCl2 were dissolved in water. calculate the total number of moles of Cl- ions in the solution.
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves
She weighed an empty 4.3 L bulb, then filled it with the gas at 1.60atm and 23.0 C and weighed it again. The difference in mass was 7.9g . Identify the gas.
What ions will the following elements form? Enter the letter of the item in Column Two that best matches the item in Column One.
What is the percent yield of a reaction in which 282 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 114 g HCl?
Consider the combustion of ethane 2C2H6 + 7O2 yields 4CO2 + 6H2O If the ethane is burning at the rate of 0.1 mol/L*s, at what rates are CO2 and H2O being produced?
Determine at what temperature will a sample of air containing 5.0x10^14 Peroxyacetyl nitrate molecules per liter decomposes at the rate of 1.0x10^12 Peroxyacetyl nitrate molecules per liter per minute.
Hemoglobin, a nonelctrolyte is an iron containing protein found in red blood cells. The osmotic pressure of 25.0 mL of an aq. soln containing 0.658 g of hemoglobin is 9.88x10^-3 atm at 25.0 *C. Determine the molar mass of hemoglobin
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