Perform the calculations required to answer each of the following questions. Pay attention to significant figures. a) What has the greater mass, 3.8 mol of silicon or 5.6 mol of sulphur? b) What is the mass of 3.64 × 1030 atoms of magnesium?

Q: What quantity in moles of iron atoms do you have if you have 2.50 × 10²³ atoms of iron. (The mass of…

A: We know that ; 1 mole of substance contain = Avogadro's number of atoms . ( Avogadro's number =…

Q: 2.01×1022 HeHe atoms         Express your answer using three significant figures.    How many moles…

A: We have to calculate the number of moles of He

Q: An unknown compound has the following chemical formula: where x stands for a whole number.…

A: Consider the given information is as follows; The formula of the unknown compound = C2Fx…

Q: An unknown compound has the following chemical formula: where x stands for a whole number.…

A: In this question, we have to find the chemical formula of C2Fx. Given: Moles of carbon= 2.71 Moles…

Q: made-up compound: J2(QZ3)2 Determine the number of molecules of J₂(QZ3)2 in 7.2 grams of J₂(QZ3)2…

A: Given -> Weight of J2(QZ3)2 = 7.2 gram  Atomic mass of J = 19.00 g/mole Atomic mass of Q = 35.00…

Q: How many moles of Barium phosphate Ba3(PO4)2 are present in 9.02 kg?

A:

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: Determine the number of atoms of O in 29.7 grams of C12H22011.

A: To solve this problem we will first calculate the number of moles of C12H22O11 . Them we will…

Q: carbon

A:

Q: ete chemical formula for t

A:

Q: Determine the number of atoms in 39.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Mass of calcium = 39.0 grams Mass of 1 mol of calcium = 40.08 g. Number of atoms = ?

Q: how many chlorine atoms are in those 20.3 grams of carbon tetrachloride?

A:

Q: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: 10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g of chlorine. What…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: An unknown compound has the following chemical formula: NO, where x stands for a whole number.…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: 4) How many atoms of carbon are in 10 grams of carbon dioxide2 5) What is the mass of water if it…

A:

Q: Determine the mass, in grams, of 0.465 moles of S (1 mol of S has a mass of 32.07 g).

A: Given that, Moles of S= 0.465 moles MM of S= 32.07 g mol-1 then,

Q: Convert 1.28 moles of Pb (OR P b) to grams. Do not type units with your answer. The atomic weight…

A: Given that, The no. Of moles of Pb = 1.28 moles Atomic weight of Pb = 207.2 grams/mol

Q: Using the average atomic mass, calculate the mass in grams of each of the following samples.…

A: Given information,     4.50 x 103 mol of germanium, Ge

Q: I was looking over and was doing calculations so I could understand and no offense but shouldn't the…

A:

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: What would the mass be of Gold, if you had 6.02 x 10^24 atoms of

A: GOLD, molar mass of Au = 196.97 g/mol atoms of Au = 6.023 x 1023

Q: a. How many ATOMS of carbon are present in 8.55 grams of carbon monoxide? atoms of carbon. b. How…

A: Given,a. mass of carbon monoxide = 8.55 gb. molecules of carbon monoxide = 1.68 x 1022 molecules

Q: If you have a sample of 24.31 g magnesium (Mg), which is equal to one mole, how many atoms of…

A: Given that Amount of magnesium (Mg) = 24.31 gram  Which is equal to 1 mole To answer this problem ,…

Q: Convert between moles and numbers of atoms. A sample of lithium contains 2.24x1025 Li atoms. What…

A:

Q: What mass of silver has the same number of atoms as 310.6 g of magnesium? Express your answer…

A:

Q: One secret admirer leaves you 4.56 moles of silver while another secret admirer leaves you 3.69…

A: Data given: Number of moles of silver = 4.56 moles  Number of moles of gold = 3.69 moles

Q: Determine the mass, in grams, of 0.635 moles of I (1 mol of I has a mass of 126.90 g)

A: Given: Moles of I = 0.635 mol Molar mass of I = 126.90 g/mol

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: Mass, S s of 32.07 g).

A: Number of moles is calculated by dividing the given mass with molecular mass. Given molecular mass…

Q: Convert 3.69 moles of Al (OR A l) to grams. Do not type units with your answer. The atomic weight…

A:

Q: Determine the mass, in grams, of 0.575 moles of I (1 mol of I has a mass of 126.90 g).

A: Molar mass of I = 126.9 g

Q: An unknown sample with a total mass of 440.85 g contains carbon, hydrogen, and oxygen.  If the…

A: Given: The total mass of the unknown sample = 440.85 g The mass of carbon = 300.25 g The mass of…

Q: An unknown compound has the following chemical formula: NOX where x stands for a whole number.…

A: Given, An unknown compound has the following chemical formula: NOx moles of oxygen = 2.9 mol moles…

Q: An unknown compound has the following chemical formula: CF where x stands for a whole number.…

A: Recall the formula of the unknown compound is C2Fx Given that the unknown compound contains 6.7 mol…

Q: What would be the mass, in grams, of 1.505 x 1023 molecules of carbon disulfide?

A:

Q: An unknown compound has the following chemical formula: NO where x stands for a whole number.…

A: In any chemical reaction, the ratio of amount in moles of two or more compounds is called as Mole…

Q: Which of the following has greater mass: 2 atoms of mercury or 3.41 × 10-23 mol of beryllium? 3.41 ×…

A:

Q: Determine the mass, in grams, of 0.805 moles of S (1 mol of S has a mass of 32.07 g).

A: The general expression that shows relationship between moles and mass is as follows, Moles=MassMolar…

Q: Suppose you have a sample of sodium weighing 11.50 g. How many atoms of sodium are present in the…

A: Information of question ,

Q: A sample of aluminum foil contains 8.00×10238.00×1023 atoms. What is the mass of the foil?

A:

Q: How many moles of atoms are in each elemental sample?

A: Given values are, No. Of atoms of Pb = 3.8×1024  atoms Standard value: Avogadro's number= 6.022×1023…

Q: What quantity in moles of silver atoms do you have if you have 5.08 × 1021 atoms of silver. (The…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: 1 mole of carbon atoms correspond to ---- number of carbon atoms

A: M

Q: A sample of methane (CH4) has a mass of 71.6g.  How many moles does that equal to?

A: Mass of Carbon =12g Mass of Hydrogen = 1g Molecular mass of methane = 16g 16g of methane  = 1 molr…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.