Description : How many moles are in a sample containing 2.71 x 10^24 atoms of iron?
Last Answer : two or three
Description : How many atoms of potassium make up 3 moles?
Last Answer : The number of atoms is 18,066422571.10e23.
Description : How many atoms of LiBr would you have if you start with 1.25 moles What is the answer and how did you get it?
Last Answer : Not atoms of LiBr; formula units is correct.1 mol = 6,022 140 857.10e23 (molecules, atoms, ions); this is the Avogadro number.6,022 140 857.10e23 x 1,25 = 7,52767607125.10e23 formula units of LiBr
Description : How many moles of C3H8 contain 4.95 1024 hydrogen atoms?
Last Answer : What is the answer ?
Description : How many moles on atoms are contained in 4.5X10 to the power of 22 atoms Cu?
Description : How many atoms are found in 4.75 moles of Fe?
Last Answer : 4,75 moles of iron contain 28,60516907075.1oe23 atoms.
Description : How many atoms are in three moles of lithium?
Last Answer : 3 moles Li x 6.02x10^23 atoms/mole = 1.8x10^24 atoms
Description : If you have 1.20 and times 1024 atoms of copper how many moles of copper do you have?
Last Answer : 1.20x10^24 atoms x 1 mole/6.02x10^23 atoms = 1.99 moles
Description : How many moles of atoms are in .515 g of carbon?
Last Answer : 0,515 g of carbon is equal to 0,043 moles.
Description : How many atoms are in 5.00x10^-2 moles of krypton?
Last Answer : atoms are in 5.00x10^-2 moles of krypton is 1013.9558
Description : Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?
Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want
Description : The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons
Last Answer : d. Molecular Weight; Daltons
Description : Two moles of an ideal gas expand spontaneouly into vacuum. The work done is :-
Last Answer : Two moles of an ideal gas expand spontaneouly into vacuum. The work done is :- A. Zero B. 2 J C. 4 J D. 8 J
Description : Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be
Last Answer : Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be A. 3 Joule B. 9 Joule C. Zero D. Infinite
Description : When tetracarbonylnickel(0) is heated , it dissociates into its components. If 5 moles of this compound is heated and the resulting gaseous component
Last Answer : When tetracarbonylnickel(0) is heated , it dissociates into its components. If 5 moles of this compound is heated ... CO)_(4)overset(A)rarr Ni + 4 CO`
Description : Moles with the potential to develop into malignant melanoma are A. intradermal nevi B. dysplastic nevi C. giant nevi D. verrucae
Last Answer : Ans: B
Description : Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m2 and the ... extraction achieved in the unit is (A) 25% (B) 50% (C) 70% (D) 90%
Last Answer : (B) 50%
Description : The individual mass transfer co-efficients (moles/m2s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of ... A) Liquid side (B) Gas side (C) Interfacial (D) Both liquid and gas side
Last Answer : (B) Gas side
Description : The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called (A) Operational yield (B) Relative yield (C) Selectivity (D) None of these
Last Answer : (C) Selectivity