How many atoms of lithium are in 18.7 g? O none of the above O 2.70 x 1024 O 3.11 x 1024 O 2.14 x 1024 O 1.62 x 1024

Q: 2. A compound has the following chemical formula; CuAl6(PO4)4(OH)8 4 H₂O. Calculate the mass…

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Q: What is the mass, in grams, of 8.55x1021 iron atoms? O 11.9g O 0.793 g O 1.26g 55.7g

A: Given: Number of iron atoms = 8.55 × 1021 atoms.

Q: How many phosphorus atoms are contained in 158 kg of phosphorus? 3.07 x 1027 phosphorus atoms 2.95 x…

A: To determine the number of phosphorus atoms in 158 kg of phosphorus, we need to use Avogadro's…

Q: Consider a 0.336 gram sample of H20 and determine the hydrogen's mass.

A: given :-  mass of sample of water = 0.336 g  To calculate :-  mass of H in the sample of water

Q: Complete the table. Element Mass Moles Number of Atoms Pt 0.0449 Fe 1.14 x 1025 Ti 23.8 mg Hg 2.05

A: Pt : Mass of Pt = moles x molar mass = 0.0449 x 195 = 8.76 g Number of atoms of Pt = moles x…

Q: Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the…

A: Given, Mass of Na =11.42 g

Q: What is the mass of 24.1 mol of xenon? 131 g 3.16 x 103 g 24.1 g 145 g

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Q: How many moles of calcium atoms do you have if you have 8.13 × 10²¹ atoms of calcium. (The mass of…

A: One mole of any substance contains 6.023×1023 particles. This is called as Avogadro’s number. The…

Q: how many moles of gold is 2.56 x 1026 atoms of gold

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything with this number is said to be one mole For…

Q: The atomic weight of chromium is 52.00 . How many moles of Cr are there in a 5.44 g sample of…

A: Here given weight of sample of chromium  =  5.44 g                   atomic weight of chromium =  52…

Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: Determine the number of moles of cesium in 50.0 g of cesium.

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Q: What is the mass of 3.5 × 10 22 molecules of CO 2

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Q: Avogadro’s number is 6.022 x 1023 particles per mole.  How many atoms of your element are in 222.2…

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Q: A compound has an empirical formula of C 2H 3. If a sample of the compound contains 4.36 grams of…

A: Empirical Formula :- It is the simplest ratio of number of atoms present in a compound. The ratio is…

Q: 1. 3.4mol Cu has 2. 7.91x1023K atoms is 3. 42.3g Tin has 4. How many atoms are in 1.54g Zn 5. What…

A: It is based on the concept of mole concept.  Here we are required to find 1)number of atoms present…

Q: A sample of hydrogen has a mass of 40.2 grams.  How many H atoms are there in the sample?   How…

A: Given that,mass of hydrogen = 40.2 gMolar mass of hydrogen = 2.016g/molmoles of hydrogen = mass of…

Q: A compound has an empirical formula of C 8H 15. If a sample of the compound contains 3.89 grams of…

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Q: Determine the mass of 3.42 X 1019 atoms of Magnesium

A: Given, atoms of Mg = 3.42 x 1019 atoms

Q: How many moles of calcium atoms do you have if you have 5.60 × 10²¹ atoms of calcium. (The mass of…

A: The question is based on mole concept. We have to calculate moles of calcium.

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: How many ATOMS of nitrogen are present in 5.39 grams of dinitrogen tetrafluoride

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Q: How many grams are in 9.05 x 1023 atoms of sulfur?

A: Given,  The mass of sulfur present in 9.05 × 1023 atoms of sulfur is:

Q: grams of hydrogen in 8.92 x 1022 molecules NH3

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Q: A compound has an empirical formula of C 8H 17. If a sample of the compound contains 4.90 grams of…

A: To solve this problem we will first find the number of moles of carbon from the given mass then…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: How many atoms are there in 350 g of arsenic?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 atoms

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

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Q: How many moles of calcium atoms do you have if you have 5.65 × 10²¹ atoms of calcium. (The mass of…

A: Mol defination:  Mole in terms of particles:  1 mol = Avogadro no.of particles            = 6.02 ×…

Q: how many grams are in 4.46 x 10 24 atoms of carbon?

A: Number of carbon atoms present = 4.46 x 1024 Atomic mass of carbon is 12 grams Atomic mass means the…

Q: n the CCI2F example, if the molar mass of the compound was 305.7 g/mol, what would the molecular…

A: Molar mass of C = 12 g/molMolar mass of Cl = 35.45 g/molMolar mass of F = 19 g/mol

Q: Determine the mass in grams of 3.92 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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Q: How many atoms are in 15.6 grams of silicon? group of answers 0.555 2.64 x 10^26 3.34 x 10^23 438…

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Q: atoms

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Q: Determine the mass in grams of 4.65 × 1221 atoms of barium. (The mass of one mole of barium is…

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Q: a sample of male testosterone C19H28O2 contains 3.88*10^21 hydrogen atoms. How many atoms of carbon…

A: Given : Number of hydrogen atoms in C19H28O2 = 3.88 X 1021 atoms.