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An x-ray diffract meter recorder chart for an element which has either an FCC or a BCC structure shown diffraction peaks at the subsequent 2 values: 31.305°, 36.266°, 52.228°, and 62.119°. The wavelength of the radiation used was 0.1541 nm.
a. Find out the crystal structure of the element. b. Find out the lattice constant. c. Recognize the element.
What are the main mononitro products of the nitration of the following compounds - Write structural formulas for the compounds
Calculate the entropy change for 0.5 mol of an ideal gas confined in 2.0L, which expands when the stopcock is opened, and the gas comes in contact
Calculate the volume the gas will occupy if the pressure is increased to 1.87 L while the temperature is held constant.
Copper metal reacts with hot concentrated sulfuric acid solution to form aqueous copper (II) sulfate, sulfur dioxide gas, and water. Write the balanced chemical formula.
Light travels extremely rapidly (c = 3.00×10^8 m/s ). Suppose you had to travel 20 miles to work every day. If you traveled at the speed of light for the entire trip, how long would it take you to get to work (in seconds)? [1 mile = 1.61km]
a) Calculate the potential of the two cells. b) Write the overall balanced redox equations for the reactions above. c) Calculate ?G for the conditions given for reactions above.
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
What percent of a sample of cesium-137 (first order beta negatron decay with t1/2 = 30 years) remains after 100 years? What is the product
a student collectedhydrogen gas in a buret by displacing water at 26.0c. the buretcould not be submerged deep enough in
The solubility of cerium sulfate, Ce2(SO4)3, in water is 0.34 g per 100 mL at 100 °C and 14.2 g per 100 mL at 10 °C. Is the dissolving of cerium sulfate in water an endothermic or exothermic process
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.89?
your chemiluminescence reaction will actually occur very slowly in air. what component of air will bring about this
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