Compute the following: Number of moles of copper in 254 g of copper[moles] Mass of 0.050 mol of copper[grams1] Mass of 1.81×1024 atoms of copper[grams2] Number of moles of copper in 2 moles of Cu3(PO4)2 [moles2]
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The amount of phosphorus in an 85 kg person is approximately…
The amount of phosphorus in an 85 kg person is approximately 0.9 kg. What is the weight of phosphorus in pounds?
Identify the period and the group number of each element Be …
Identify the period and the group number of each element Be period[period1]group[group1] Se period[period2]group[group2] Re period[period3]group[group3] Fe period[period4]group[group4] Ce period[period5]group[group5]
Convert 12557 feet to meters. Round your answer to three sig…
Convert 12557 feet to meters. Round your answer to three significant figures.
The density of tungsten is 19.35 g/cm3. A sample of tungsten…
The density of tungsten is 19.35 g/cm3. A sample of tungsten is placed in a graduated cylinder containing 16.1 mL of water and the water level rises to 23.6 mL. What is the mass in grams of the sample of tungsten?
Express the result of the following calculation in scientifi…
Express the result of the following calculation in scientific notation: 563000 cm2 x 0.69 cm
Calculate the molar mass of calcium trichloroacetate, Ca (CC…
Calculate the molar mass of calcium trichloroacetate, Ca (CCl3CO2)2, in g/mol
The mass of 450.5 mg equals
The mass of 450.5 mg equals
Cathode ray is a beam of
Cathode ray is a beam of
When a 32.55 gram sample of gold is placed in a graduated cy…
When a 32.55 gram sample of gold is placed in a graduated cylinder containing 4.20 mL of water, the water level rises to 7.30 mL. What is the density of gold in g/cm3?