WebA: Given: Edge of a unit cell =4.08×10-8 cm The density of the metal =19.3 g/cm3 question_answer Q: An atom has a radius of 138 pm and crystallizes in the body-centered cubic unit cell. WebDensity =d= a 3×N An×M. GIven: d=7.2 g cm −3. a=289 pm =289×10 −10 cm. Molecular weight of Cr =52 g mol −1. n= Md×a 3×N A= 527.2×(289×10 −10) 3×6.023×10 23. n= …
Solved How many coulombs are required to plate a layer of - Chegg
WebAfter removing excess peroxydisulfate by boiling, 500.0 mg of Fe(NH4 )2 (SO4 )2•6H2O is added, reducing the Cr2O7 2- to Cr3+ . The excess Fe2+ is back titrated, requiring 18.29 mL of 0.00389 M K2Cr2O7 to reach the end point. Determine the average thickness of the chromium plate given that the density of Cr is 7.20 g/cm3 WebFind step-by-step Chemistry solutions and your answer to the following textbook question: How many coulombs are required to plate a layer of chromium metal 0.25 mm thick on an auto bumper with a total area of $$ 0.32 \ m^2 $$ from a solution containing $$ CrO_4 ^{2-} ? $$ The density of chromium metal is $$ 7.20 g/ cm^3. $$. fiu marilys nepomechie
The density of chromium metal is 7.2 g cm ^-3 . If the unit ... - Toppr
WebJul 31, 2024 · The density of chromium is 7.19 g/cm3. See answer Advertisement OlaMacgregor Explanation: The given data is as follows. Surface area = 0.25 , current (I) = 25 A Density = 7.19 g/ As 1 m = 100 cm. Hence, 1 = So, density = As Height = 0.01 mm = = m. It is known that density is mass divided by volume. Density = Also, volume = Area … WebThe density of common metals such as iron is 7.87 g/cm3, mild steel is 7.85 g/cm3, 304 stainless steel is 8.0 g/cm3, aluminum is 2.7g/cm3, copper is 8.93 g/cm3, gold is 19.3 g/cm3, silver is 10.49 g/cm3, for more … WebUNS Material Density (g/cm. 3) All alloys are subject to availability. For alloys not listed here, please contact our sales department. Densities listed are for general reference only. ... R2XXXX Chromium 7.19 R30XXX Cobalt 8.85 W6XXXX Copper 8.89 P00020 Gold (99.95) 18.88 R02XXX Hafnium 13.10 L04XXX Indium FXXXXX Iron 7.87 L50050 Lead 11.35 ... can i mix benadryl and mucinex