Question 10 of 31 Determine the mass in grams of 3.00 x 1021 atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.) A) 4.00 x 1019g B) 4.98 x 10-9 g C) 6.02 x 1023 g D) 0.373 g E) 6.65 x 10- g

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: Which of the following is equal to exactly Avogadro's number of atoms? 8.00 grams of oxygen 36.00…

A: To find which of the following is equal to exactly Avogadro’s number of atoms. 8.00 grams of oxygen…

Q: rgahic compound has a gram molecular weight of 372 g/mol, and its composition is 38.6% carbon, 9.76%…

A:

Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

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: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: The molar mass of a compound is described by the moles concept. According to this concept, one molec…

Q: An unknown compound is processed using elemental analysis and found to contain 117.4 g of platinum,…

A: We know that,  Number of mole = given mass/molar mass Atomic mass of platinum =195.084 g

Q: 91. Calculate the mass in grams of each of the following samples. a 10,000,000,000 nitrogen…

A: as per Q&A guidelines of portal I solve first three parts of the question because it comes under…

Q: Convert 0.802 moles of Ti (OR T i) to grams. Do not type units with your answer. The atomic weight…

A: Given  Number of mole of Ti  = 0.802 mole  Molar mass of Ti   =  47.87 gram/mole Weight in gram…

Q: What quantity in moles of iron atoms do you have if you have 3.00 x 10^23 atoms of iron. (The mass…

A: Number of iron atom = 3.0×1023Mole is equal to number of atom divide by avagadro numberValue of…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: In order to calculate the empirical formula of each compound , we first need to convert the grams of…

Q: What is the mass (in grams) of 9.43 x 1023 molecules of sucrose (C12H22O11)? First determine the…

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

Q: What mass of chlorine is contained in 80.3 g of ZnCl2?

A: %w/w = (mass of chlorine in ZnCl2/mass of ZnCl2) × 100

Q: Determine the moles of barium in each sample. Be sure each of your answer entries has the correct…

A: Part 1) 731. g Ba:To find the number of moles of barium, we'll divide the given mass by the molar…

Q: Which of the following statements is/are correct? atoms of carbon-12 H. A mole of iodine atoms…

A: The statements given are,

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: mass

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Q: Determine the mass in grams of 6.26 × 1021 atoms of arsenjc. (The mass of one mole of arsenic is…

A:

Q: A) Suppose one molecule of Chlorophyll X contains 5 oxygen atoms. Chlorophyll X is 8.95% oxygen by…

A: Molecular mass of Chlorophyll X can be found out by using the mass percentage of Oxygen and number…

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

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Q: you have 1.500 moles of an unknown metallic element. You go to the balance, and find that the mass…

A: Number of Moles of the Unknown Element = 1.500 moles Mass of the Element = 161.80 g   In order to…

Q: Convert 0.834 mol of le ad(M) nitrate, Pb(NO3)4(s), into mass.

A: Given :-  Number of moles of Pb(NO3)4 = 0.834 mol  To convert :-  0.834 mol to grams

Q: 4. A chemist has a sample of propanol, C3H;OH, that contains 9.2 x 1024 molecules. What is the mass…

A:

Q: Convert 1.61 × 1024 atoms of carbon to moles of carbon.

A: Answer:Each mole of a substance has number of particles equal to Avogadro number whose value is…

Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1024 atoms of potassium.…

A:

Q: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

A: Given a compound with the composition: Rh = 53.34 % C = 9.338 % O = 100 - (53.34 + 9.338) % = 37.322…

Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

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: Naturally occurring chlorine consists of 35Cl (mass 34.96885 amu) and 37Cl (mass 36.96590 amu), with…

A: Given, Naturally occurring chlorine consists of Cl35 (mass 34.96885 amu)and Cl37 (mass 36.96590…

Q: A newly found compound was discovered to contain 4 iron atoms. If the molar mass of this compound is…

A:

Q: he total number of atoms contained in 2.11 moles of nickel? Ex 1023 atoms B) 3.25 x 1023 atoms C)…

A:

Q: is trying to discover information about an unknown metal in a compound. The formula for the compound…

A: Atomic mass of an element is the mass of an atom of the element.Here we have to calculate atomic…

Q: CHEMWORK With the advent of techniques such as scanning tunneling microscopy, it is now possible to…

A: The advent of advanced techniques such as scanning tunneling microscopy has revolutionized the field…

Q: If you had 21.5 moles of silicon, how many atoms would you expect to have? And If you had 5.69 x…

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Q: Determine the mass in grams of 2.67 x 10²¹ atoms of arsenic. (The mass of one mole of arsenic is…

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

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

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.