What is the mass of silver that can be prepared from 2.10 g of copper metal? Cu(s)+2AgNO3(aq)→Cu(NO3)2(aq)+2Ag(s)

2 answers:

7 0

Moles of Cu = 2.10 /21 = 0.1 Moles of Ag produced is 0.2 Mass of Ag = 0.2 x 108 = 21.6 g. 0.500 g/108 = 0.046 moles, but Cu. moles produced will be half as much, from equation = 0.23moles mass of Cu = 0.023 x2.10 = 0.0483g

VLD [36.1K]4 years ago

3 0

The mass of silver that can be prepared from 2.10 g of copper metal are 7.128 grams of Ag

calculation

Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 +2 Ag (s)

find the moles of Cu

= mass/ molar mass

= 2.10 g / 63.5 g/mol = 0.033 moles

Use the mole ratio to determine the moles of Ag

The mole ratio of Cu : Ag is 1:2 therefore the moles of Ag = 0.033 x2=0.066 moles

mass of Ag = moles x molar mass

= 0.066 moles x 108 g/mol = 7.128 grams of Ag

You might be interested in

Listed below are possible solutes. In your possession is a beaker with 500 milliliters of water. You want to make an aqueous sol

slavikrds [6]

Answer: I & III

Explanation: Solutes are the substances which are minimum in quantity and which is required to dissolve in the solvent (which is larger in quantity) in order to make a solution.

In the asked question, it is given that the water is the solvent and from the given solutes we have to pick which would make an aqueous solution with the highest concentration of solute possible.

Thus the most appropriate answers could be the Ammonia and hexanol which can make the highest possible concentration of solute as ammonia is the gas which is highly soluble in water and hexanol is an alcohol which has an affinity for water. Thus the correct option is I & III

8 0

4 years ago

Read 2 more answers

Foods cook faster when placed in a pressure cooker. This is because the pressure on the surface of the water is (higher than/low

tia_tia [17]

Answer:

The pressure is higher than the atmospheric one, therefore the temperature is less.

Explanation:

When it is closed permanently, the pressure of the pot inside it increases, generating that the atoms and particles of the water are closer together, increasing their kinetic energy, if intermolecular friction and therefore the boiling point is lower, because the water reaches a boil or boil at a lower temperature.

5 0

3 years ago

what is the structure of XeO2F2???i know its hybridization as sp3d but cannot quite understand its diagram in free space,help an

skelet666 [1.2K]

The shape of XeO₂F₂ is Trigonal bi-pyramidal see-saw tetrahedron (see attached pictures)
- As you said the hybridization of Xe here is sp³d so its geometry has to be Trigonal bi-pyramidal in which F atom located on axial positions but for the final shape we exclude lone pair on Xe to give see-saw shape (see second picture)
- Remember that we have 5 pairs (4 bond pairs + 1 lone pair) and we have to place lone pair at equatorial position.