which of the following has the highest mass 1 mol sr, 1mol Ag, 1 mol Zn.or 1 mol Cu?

Q: If mass Q mass A = 0.571 in AQ, what is mass Q mass A = in A₂ Q3 ?

A: Answer: Two compounds always react in the fixed ratio of their masses and this is called as law of…

Q: What is the mass of 4.91×10214.91×1021 platinum atoms?

A: For  calculating the mass of substance , we have the governing equation  m=NA×Molecular weight ,…

Q: How many moles of oxygen atoms are there in 15. 53 moles of N02?

A: Given -> Moles of NO2 = 15.53 mole

Q: Calculate the mass, in grams, of 392 atoms of potassium, K (1 mol of K has a mass of 39.10 g).

A: Given  Number of atom of Potassium  = 392 atom  Molar mass  = 39.10 gram/mole Mass of Potassium in…

Q: How many moles of Al are there in 41.5 grams of Al?

A: Since number of moles of atom = mass of atom / Atomic mass of atom

Q: 22 11. Find the mass in grams of 2.54 x 10 molecules of H,SO,.

A: Number of molecules of H2SO4 = 2.54 × 1022 molecules. Mass of H2SO4 (in grams ) = ?

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

A: Mass (%) of an element in compound = 100 x Mass of element/Mass of compound Number of moles =…

Q: Two compounds of Cl and X are found to have molecular masses and % Cl, by mass, as follows: 137…

A: In first compound, Cl is 77.5 % and the total mass of the compound is 137 u. Calculate the mass of…

Q: How many moles of Na are there in 1.28 x1025 atoms of Na?

A:

Q: Oxygen forms a number of compounds with sulfur, many of which are quite reactive. One such compound…

A:

Q: Calculate the mass CARBON in 0.0299 moles of C6H12O6.

A: A pure compound is that which contains its constituent atoms in fixed ratio by mass.C6H12O6  is a…

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: The atomic mass of aluminum is 26.982u. How many alluminum atoms are in a 4.55g sample of aluminum?

A: Mass of aluminium sample=4.55 g The atomic mass of aluminum =26.982 u Moles of aluminium=4.5526.982…

Q: An unknown element X has the following isotopes: 140X (89.00% abundant) and 142X(11.00% abundant).…

A: Since,         Average Atomic mass=Σass of Isotope×% of Isotope100

Q: How many moles of NH3 are there in 1.93 grams of NH3?

A: No. Of moles = gram weight / molar mass Molar mass of NH3 = 17

Q: 6.5 x 10²³ atoms of H is equal to how many moles H?

A: Number of units in one mole of any substance is defined by Avogadro's number and it is  equal to…

Q: 22. The molar mass of Ba (NO3) 2 is?

A: In this question we need to calculate the molar mass of Ba(NO3)2 we know the molar mass of…

Q: A compound of Cl and X are found to have a molecular mass of 137.324 amu and 77.445% Cl, by mass.…

A: Total molecular mass = 137.324 amu. Here 77.445% is Cl and (100-77.445) = 22.555% is X. 77.445% of…

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: An unknown element X has the following isotopes: ¹⁴⁰X (89.00% abundant) and ¹⁴²X(11.00% abundant).…

A:

Q: Calculate the mass, in grams, of 457.0 atoms of cadmium, Cd (

A: given, no. of atoms of cadmium (Cd) = 457.0 atoms mass of 1 mol Cd = 112.41 g  1 mol of an element…

Q: What is the mass of 1.6x10^21 argon atoms?

A: Molar mass of Argon is 39.95 g/mol i.e 1 mole of argon = 39.95 g of Argon Number of atoms of Argon…

Q: What is the mass in grams of 6.022 * 1023 N atoms of mass 14.01 amu?

A: To determine the mass in grams of 6.022x1023 N atoms of mass 14.01 amu Given that: Mass of each atom…

Q: Calculate the mass, in grams, of 852 atoms of cadmium, Cd (1 mol of Cd has a mass of 112.41 g).

A: Mole : Mole of any element is ratio of atoms of element to the Avogadro number. If number of moles…

Q: Which sample contains the greatest number of atoms? (a) 15 g Ne (b) 15 g Ar (c) 15 g Kr (d) None of…

A: The mole concept is used to solve such problems. The mole concept was introduced by Avogadro to…

Q: What is the mass of a sample containing 1.00 mol of atoms, 33% of them N and 67% of them O?

A: The objective of the question is to calculate the mass of a sample containing 1.00 mol of atoms, 33%…

Q: What is the molecular mass of CH¿I? amu

A: Molecular mass is defined as the is the mass of a given molecule. The unit of molecular mass is amu…

Q: Calculate the mass, in grams, of 162 atoms of potassium, K (1 mol of K has a mass of 39.10 g).

A: Avogadro number determines the number of atoms in one mole of a substance. Its value is 6.022×1023…

Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: How many moles of iodine atoms are there in a sample that consists of 1.35e+23 molecules of…

A: Mole=no of molecule÷6×1023 Mole=1.35×1023÷6×1023 Mole= 0.225 1 mole iodine elememental have 2 mole…

Q: A 37.99 gram sample of a hydrate of COCL2 was heated thoroughly in a porcelain crucible, until its…

A: Given mass of the hydrated sample of CoCl2=37.99 grams. Give mass of anhydrous sample of CoCl2…

Q: If 2.06 mL of seawater contains about 6.91×10-14 moles of gold, how many atoms of gold are in that…

A:

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: Calculate the mass, in grams, of 175.0 atoms of cadmium

A: Given :- number of atoms of Cd = 175.0 atoms                mass of 1 mol Cd = 112.41 g  To…

Q: Na +  H2O --->  NaOH +  H2 A mass of 6.2 moles of sodium reacts with an excess of water.  What mass…

A:

Q: What is the mass, in grams, of 1.20 mol of water, H20? Express the mass in grams to three…

A: The mass of 1.20 mol of water (H2O) in grams is calculated by using below formula,

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

A: Given data:

Q: the atomic mass of C is 12.011u. How many moles of C are there in 3.50g sample of carbon?

A: Converting Mass to molesAtomic Mass of C = 12.011 Mass of C in a sample = 3.50Calculate the Number…

Q: How many atoms of N are there in 0.00087 moles of the molecule N2?

A: Moles:   Mole is an unit of amount of substance for measuring large quantities of very small…

Q: what is the molecular formula for a substance that in 1 mole of sample contains 1 mole of S 24.1 x…

A: Given, 1 mole of a sample contains: 1 mole of S, 24.1 x 1023 atoms of F and 71.0 g of Cl.To find the…

Q: What number of moles represents 2.0 × 1022 atoms of nickel?

A: Given Atoms of Ni = 2 x 1022 atoms

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: 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: 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: 23 atoms of magnesium? 1. How many moles of magnesium is 5.61 x 10

A: moles of any species is defined as when given mass of species divided by its molar mass