WebFrom my textbook: Gold is alloyed (mixed) with other metals to increase its hardness in making jewelry. (a) Consider a piece of gold jewelry that weighs 9.85 g and has a volume of 0.675 cm 3. The jewelry contains only gold and silver, which have densities of 19.3 g/cm 3 and 10.5 g/cm 3, respectively. Assuming that the total volume of the jewelry is the sum … WebThe least populous of the compared counties has a population of 7,793. Total Population by County#11. Scope: population of Montgomery County and selected other counties in …
If copper has a density of 8.96 g/cm3, what is the volume …
WebCopper has a density of 8.96 g/cm3 , an atomic mass of 63.9 u and is monovalent which means every atom in copper contributes one electron to the conduction process. Find … WebOct 26, 2011 · See answer (1) Copy. The density of copper (Cu) is about 8.92 g/cm3. So 1 cm3 of copper is about 8.92 g. Next find the number of moles in 8.92 g of copper by dividing by its molecular weight: 8.92 ... lexibook powerman max
How many atoms in 1 cm3 of copper? - Answers
WebA copper wire has a circular cross section with a radius of 1.25 mm. (a) If the wire carries a current of 3.70 A, find the drift speed of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 1029 electrons/m3.) ... The density of copper is 8.96 g/cm3 and thedensity of aluminum is 2.70 g/cm3. The molar mass ... WebDensity = Mass / Volume. Density = 400 g / 44.64 cm³. Density = 8.96 g/cm³ Therefore, the density of the object is 8.96 g/cm³. Part C: Answering the Question. The problem asks us to provide the density of the object, and we found in Part B that it is 8.96 g/cm³. So the answer to this part is simply "The density of the object is 8.96 g/cm³." WebAug 24, 2024 · From the volume and given density, calculate the mass of the copper sphere . mass = density x volume [density = 8.96g/cm³] mass = 8.96 x 56.108 = 502.73g. From known facts. 1 mole of copper = 63.5g of copper = 6.022 x 10²³ copper atoms. Then, 502.73 g of copper = = 47.68 x 10²³ copper atoms lexibook service client