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your question is incomplete or incorrectly worded You want to know how much copper is in 100 grams of an unknown sample. The unknown could be made of anything, it may not even contain copper. You should include more information in your question
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∙ 15y ago
To determine the grams of Cu in the 100 g sample of unknown, you need to know the percentage composition of Cu in the sample. Multiply the percentage of Cu by the total mass of the sample (100 g) to find the grams of Cu present. Formula: (Percentage of Cu/100) x 100 g = grams of Cu.
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What is the mass of 19 atoms of copper in grams?
To calculate the mass of 19 atoms of copper in grams, you need to determine the molar mass of copper. The molar mass of copper is approximately 63.55 grams per mole. Then, you can use Avogadro's number (6.022 x 10^23 atoms per mole) to convert atoms to grams. So, the mass of 19 atoms of copper would be 19*(63.55/6.022e23) grams.
How many moles of copper are there in 128 grams of copper?
Multiply 564 grams of copper by 1 mole over the atomic mass of copper (represented in grams). 564 g Cu * 1 mol Cu / (atomic mass) g Cu The atomic mass is located on the periodic table and represented in atomic units. The same value is used here, but with the unit as grams.
How many molecules are there in 122 grams of Cu(NO3)2?
122 grams of anhydrous Cu(NO3)2 contain 3,92.10e23 molecules.
If you wish to obtain 10.0 grams of copper metal from copperII sulfide what mass of copperII sulfide must you use - A.10.0 grams B.24.6 grams C.607 grams or D.15.0 grams?
B. 24.6 grams. To find this, you must first calculate the molar mass of Cu and CuS. This will give an idea of the mole ratio between Cu and CuS. Then, you can use stoichiometry to determine that 24.6 grams of Cu₂S will yield 10.0 grams of Cu.
Calculate the number of grams 0.345 moles Cu x 63.546 g Cu?
1 mol of an element is equal to it's atomic weight, but with grams instead of amu (or daltons) as the unit. For example, with copper (Cu), 63.5 amu is its rough atomic weight, which means it weighs roughly 63.5g per mol. Then we just need to divide through. 63.5 x 0.345 = 21.9g
How many moles of copper are present in 75.92 g?
The atomic mass of Copper is 63.5 grams One mole of any element has a mass equal to the atomic mass. 0.75 grams of Cu = x moles of Cu 63.5 grams of Cu = 1 mole of Cu Set up a proportion and solve for x Divide 0.75 / 63.5 = x /1 0.75 ÷ 63.5 = x
How do you find the mass of Cu in 50 ml of solution?
To find the mass of Cu in a solution, you would first need to know the concentration of Cu in the solution in units like molarity (mol/L) or mass/volume percentage. Once you have the concentration, you can use it to calculate the mass of Cu by multiplying the concentration by the volume of the solution (50 mL in this case). Remember to convert the volume to liters if the concentration is in molarity.
How many grams do 4.6 x1025 atoms of cu weigh?
I assume you mean 4.6 X 10^25 atoms. This is the conversion. 4.6 X 10^25 atoms Cu ( 1mol Cu/ 6.022 X 10^23 )( 63.55 grams Cu/ 1 mol Cu ) = 4854.37 grams Cu
How do you convert 2068 grams of copper to moles?
For this you need the atomic mass of Cu. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.2068 grams Cu / (63.5 grams) = 32.6 moles Cu
How many moles of copper are there in 128 grams of copper?
Multiply 564 grams of copper by 1 mole over the atomic mass of copper (represented in grams). 564 g Cu * 1 mol Cu / (atomic mass) g Cu The atomic mass is located on the periodic table and represented in atomic units. The same value is used here, but with the unit as grams.
What is the mass of 19 atoms of copper in grams?
To calculate the mass of 19 atoms of copper in grams, you need to determine the molar mass of copper. The molar mass of copper is approximately 63.55 grams per mole. Then, you can use Avogadro's number (6.022 x 10^23 atoms per mole) to convert atoms to grams. So, the mass of 19 atoms of copper would be 19*(63.55/6.022e23) grams.
How do you convert the cu m into cu centimeters?
Multiply cu m by 1,000,000 to convert to cu cm. 1 cu m = 1 m * 1 m * 1m = 100 cm * 100 cm * 100 cm = 1000000 cu cm
How many molecules are there in 122 grams of Cu(NO3)2?
122 grams of anhydrous Cu(NO3)2 contain 3,92.10e23 molecules.
What is the density of 1020 steel?
The density of 1020 steel is approximately 7.85 g/cm^3 or 0.284 lb/in^3.
How many gallons in 100 cu ft?
There are 748 gallons in 100 cu ft.
How many moles of atoms are in 4.5 grams of Cu?
4,5 moles of copper are equivalent to 285,957 g.
Calculate the number of grams 0.345 moles Cu x 63.546 g Cu?
1 mol of an element is equal to it's atomic weight, but with grams instead of amu (or daltons) as the unit. For example, with copper (Cu), 63.5 amu is its rough atomic weight, which means it weighs roughly 63.5g per mol. Then we just need to divide through. 63.5 x 0.345 = 21.9g
