Calculate the mass in grams of each sample 1.1 x 10 to the power 23 gold atoms 1.8 x10 to the power 23 lead atoms 2.82 x 10 23 helium atoms 7.9 c 10 23 uranium atoms thanks

Q: Silver is composed of two naturally occurring isotopes: Ag-107 (51.839%) and Ag-109. The ratio of…

A: First calculate the percent abundance of Ag-109.

Q: Relative number of atoms The stable isotopes of iron are 54F., 56FE, 57Fe, and 58F.. The mass…

A:

Q: What is the mass in grams of 3.61 x10^23 atoms of copper?     How many copper atoms are there in…

A: The atomic mass of an element is used to determine the number of moles of an element. One mole of…

Q: The element X has three naturally occurring isotopes. The isotopic masses (amu) and % abundances of…

A:

Q: The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the…

A: To find the average atomic mass, summing the masses of the elements isotopes, each multiplied by…

Q: A copper ring is composed of 1.45×1023 atoms.1.45×1023 atoms. Calculate the mass of the ring in…

A: The mass of the ring in grams is to be calculated

Q: How many grams does 1.44 x 1028 carbon atoms weigh?

A: To calculate the mass in grams for the atoms  First we have to convert the number of Atoms into…

Q: One atom of an unknown element has a mass of6.66 × 1 0 -23 g. What is the identity of this element?

A: Molar mass is the mass of Avogadro's number (6.022×1023) atoms.

Q: Determine the mass in grams of 7.52 x 10²1 atoms of barium. (The mass of one mole of barium is…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: A 12.39 g sample of phosphorus reacts with 42.54 g of chlorine to form only phosphorus trichloride…

A: Given: mass of P = 12.39 g mass of Cl2 = 42.54 g molar mass of P = 30.97 g/mol molar mass of Cl2 =…

Q: A student has a sample of zinc that weighs 22.19 g How many zinc atoms are in this

A: Given :- mass of Zn = 22.19 g  To be calculated :- number of Zn  atoms  molar mass of Zn = 65.38…

Q: Which sample contains the greatest number of atoms? O 102 g Ag O 189 g Ir O 18 g O O 53 g Fe

A: The number of moles is defined as the ratio of a given mass to molar mass. No. of moles =Given…

Q: Determine the mass in grams of 6.96 × 102¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole is defined as mass of substance divide by it's molar mass

Q: Calculate the mass in kilograms of 11.9 mol of CuF2 2H20. kg CuF2 2H20

A:

Q: How many atoms are contained in a block of aluminum metal measuring 8.0 mm x 6.0 mm x 15 mm? The…

A: Given, length of aluminum block = 8.0 mm = 0.8 cm                            ( since 1 mm = 0.1 cm)…

Q: 4. An element “X* has five major isotopes, which are listed below along with their abundances. What…

A: We are having an element X having five isotope along with their abundance and mass . We have to…

Q: One atomic mass unit has a mass of 1.6605402 × 10-24 g. a)Calculate the mass, in grams, of one…

A: The mean atomic mass of magnesium stands at 24.305 atomic mass units (amu). An atomic mass…

Q: If a sample of silver contains 1.29×104 atoms of silver-107 and 1.20×104 atoms of silver-109, what…

A: The percentage of silver-109 in the sample can be calculated by using the formula Percentage of…

Q: Tin has 10 stable isotopes. The heaviest, ¹24Sn, makes up 5.80% of naturally occurring tin atoms.…

A: We have to calculate atoms of 124Sn  and total mass of atoms of  124Sn

Q: A macromolecule has an empirical formula of C4H306. The molecular mass for the macromolecule is…

A: Given :- empirical formula of macromolecule = C4H3O6  Molecular mass of macromolecule = 429.21 g/mol…

Q: 5. Find the mass in grams of each of the following. a) 1 gold atom b) 6.02 X 1023 He atoms

A:

Q: The stable isotopes of iron are $4Fe, Fe, $7Fe, and 5"Fe. The mass spectrum of iron looks like the…

A: The given mass spectra of iron is, The relative number of isotope atoms of 54Fe is 5.85. The…

Q: Determine the mass in grams of 6.24 x 1021 atoms of barium. (The mass of one mole of barium is…

A:

Q: How many sulfur atoms would it take to obtain a mass of 9.31 x 10-21 grams of S?

A:

Q: A solid cube of aluminum (density 2.70 g/cc) has a volume of 0.200 cc. It is known that 27.0g of…

A: Given,  The density of aluminum = 2.70 g/ cc The number of atoms present in volume 0.200 cc. of a…

Q: A coin is made of 100% silver (Ag) and has a mass of 3.0 g. How many Ag atoms are there in the coin?…

A:

Q: A 67.2 gg sample of a gold and palladium alloy contains 2.68×1023 atoms. What is the mass percentage…

A: Mass percent of an element is the ratio of its mass  in the compound to the total mass of the…

Q: Question 27 Determine the number of atoms in a piece of silicon that has a mass of 15.0 grams. O…

A: We have to determine the number of atoms ina piece of silicon as follows in step 2:

Q: A slice of Pb metal contains 2.52 × 10¹2 atoms. What is the mass of the slice of Lead in amu? What…

A: Number of Pb atoms in one slice of Pb metal…

Q: Determine the mass in grams of 5.36 x 10^21 atoms of chromium. (the mass of one mole of chromium is…

A:

Q: Gallium Arsenide has a density of 5.32g/cm3 and the chemical formula GaAs. A GaAs piece has a volume…

A:

Q: What is the mass of one atom of I? 3.443 x 10 24g 6.641 x 10 23 g 2.107 x 10-22 g 4.745 x 10-22 g

A:

Q: A sample of C, H, has 4.64 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A:

Q: Consider a sample that consists of three green spheres and one blue sphere. the green mass is 3.00g…

A: Given : Mass of green spheres = 3g Mass of blue sphere = 1g

Q: Determine the mass in grams of 2.25 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55…

A: Mole concept: According to the mole concept, the number of particles in one mole of the substance is…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.