a) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in grams, of a)one helium atom? b)one potassium atom? c. How many sodium atoms are there in 6.00 moles of sodium?

Q: How many atoms of He can a balloon hold that has a 21 cm diameter hold? The density of Helium is…

A: Radius, r=diameter2=212=10.5 cm volume of spherical baloon…

Q: Determine the mass, in grams, of 0.315 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: How many grams of C are present in 4.19 grams of carbon tetrafluoride?   How many grams of carbon…

A: Given   (i)   Mass of CF4  = 4.19 gram       Mass of carbon = ? (ii)  Mass of F = 4.61 gram…

Q: A helium balloon contains 0.46 g of helium. How manymoles of helium does it contain?

A: Mass of helium =  0.46 g Moles of helium = ?

Q: A brass alloy contains 78.9% copper, Cu, by mass with the remainder of the alloy being zinc, Zn.…

A: We have to predict the moles of Zn and atoms of Zn.

Q: Calculate the mass, in grams, of each of the following: a. 2.4 mol of aluminum Mass %3D b. 1.60 x 10…

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

Q: How many moles of Br are there in a sample of Br that contains 2.33×1023 atoms? _______ moles

A: Since, Number of atoms or molecules is the multiple of moles and avogadro's number. Thus,

Q: A sample of hydrogen contains 35.3 grams. 1. How many moles of H atoms are there in the sample? 2.…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Calculate the following: 1. Mass of 4.3x10mol of lead 2. Mass of 3. 8x10 antimony atoms 3. Number of…

A:

Q: A sample of propane, C3H8C3H8, contains 16.1 molesmoles of carbon atoms. How many total moles of…

A: Given, the sample of propane (C3H8) contains 16.1 moles of carbon atoms. In propane, the carbon…

Q: determine the number of grams of carbon 3.14x 1023 atoms of carbon plz show how u got the answer

A: Given: Number of carbon atoms=3.14 x 1023 atoms Mass of carbon=? 1 mol of carbon atoms = 6.022 x…

Q: How many atoms of Helium can a balloon that has a 25 cm diameter hold? The density of Helium is 1.18…

A: The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms,…

Q: How many atoms of oxygen are in 2.7 moles Mg(NO3)2? Report your answer with the correct number of…

A: The number of oxygen atoms there are = 9.8e24  atoms

Q: A sample of Al weighs 52.0 grams. Will a sample of Hg that contains the same number of atoms weigh…

A:

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: #2 pls

A:

Q: 2. How many grams are found in a sample of ammonia, NH3 that has 4.59 x 10²5 molecules? A) 4.71 x…

A: The question is based on mole concept. we need to calculate mass of given quantity of ammonia.

Q: What

A: The atomic mass of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g.

Q: Determine the mass, in grams, of 0.710 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: Determine the number of atoms of O in 7.23 moles of Ca(NO3)2. atoms 3 4 6. 7 9. +/- х 100 2.

A: Given: Moles of Ca(NO3)2 = 7.23 mol

Q: Calculate the mass of the following. 33) 35 liters of Cl₂ gas

A:

Q: How many atoms of He can a balloon that has a 19 cm diameter hold? The density of Helium is 1.18…

A: Given data,Diameter of balloon=19cmRadius of balloon=19cm2=9.5cmDensity of He=1.18g/L

Q: a) How many sulfur atoms are there in 3.8 mol of sulfur? b) How many moles of aluminum do 5.8 X…

A: To get number of atom or molecule from mole number, gram etc, we use Avogadro's number.

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What is mass of…

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: What is the molar mass of the solid C 6H8 N4 O 4?     2. The following  18  O  -2. How many…

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: Use the References to access important values 1. What is the mass of 9.23x1023 atoms of barium? 2.…

A:

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

A:

Q: 1. How many ATOMS of sulfur are present in 4.11 grams of sulfur dioxide, SO₂? 2. How many GRAMS of…

A: 1. The mass of sulfur dioxide given is 4.11 g.To find the atoms of sulfur.2. The molecules of sulfur…

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: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

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

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 Ne atoms are contained in 0.5 moles of neon (Ne) atoms?

A: Given that, moles of Ne= 0.5 moles  No. of Ne atoms = ?

Q: 1. How many ATOMS of carbon are present in 7.87 grams of carbon tetrabromide, CBR4? atoms of carbon

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

Q: O 1.98 x 1022 atoms of lead

A:

Q: An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 6.50 g of…

A: Given :  Mass of water = 3.90 g  Mass of CO2 = 9.53 g  Mass of compound = 6.50 g

Q: How many moles of Li are there in a sample of Li that contains 3.08×1024 atoms? _____ moles

A:

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.