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11111nata11111 [884]
4 years ago
10

How many moles of solve (Ag) are equivalent to 68.3g Ag

Chemistry
1 answer:
Zina [86]4 years ago
5 0
Moles Ag = 68.3 g / 107.868 g/mol=0.633
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How does ionization energy increase on the periodic table
vodomira [7]

Ionization energy increases across a period from left to right in the periodic  table.

<h2>Ionization energy</h2>

Ionization energy is the energy needed for the complete removal of valence electrons in its ground state from an isolated atom in its gaseous phase at a specified temperature to form an ion.

Ionization energy shows periodicity in that it shows a regular variation across a period and down a group in the periodic table.

Ionization energy increases across a period from left to right in the periodic  table.

Learn more about ionization energy at: brainly.com/question/1445179

5 0
3 years ago
Read 2 more answers
A person has a mass of 1000g and an
lorasvet [3.4K]

Answer:

A is the answer i am pretty sure

5 0
4 years ago
How many kilojoules of heat will be released when exactly 1 mole of iron, Fe, is burned to form Fe2O3 at standard state condaiti
Diano4ka-milaya [45]

Answer:

412.1kJ

Explanation:

For the reaction , from the question -

4Fe (s)  +  3O₂ (g)  → 2Fe₂O₃ (s)

Δ Hrxn = Δ H°f (products) - Δ H°f (reactants)

In case the compound is in its standard state , enthalphy of formation is zero

Hence ,

for the above reaction ,

ΔHrxn =( 2 * Δ H° (Fe₂O₃ )) - [ ( 4 *Δ H° Fe ) + (3 * Δ H° O₂ )]

The value for Δ H°(Fe₂O₃ ) = - 824.2kJ/mol

Δ H° Fe = 0

Δ H° O₂ = 0

Putting in the above equation ,

ΔH rxn = ( 2 * Δ H° (Fe₂O₃ ))  - 0

ΔHrxn =  2× - 824.2 kJ / mol = - 1648.4 kJ/mol

- 1648.4 kJ/mol  , this much heat is released by the buring of 4 mol of Fe.

Hence ,

for 1 mol of Fe ,

- 1648.4 kJ/mol  / 4 = 412.1kJ

8 0
3 years ago
A compound is found to contain 50.05% sulfur and 49.95% oxygen by mass. What is the empirical formula for this compound
yaroslaw [1]
S=50.05/32  O=49.95/16, S=1.5640625/1.5640625  O=3.121875/1.5640625, S=1 O=1.99, S=1 O=2 Empirical Formula= SO2
8 0
4 years ago
Read 2 more answers
NEED ANSWER ASAP!
Eduardwww [97]

Answer:

A or C

Explanation:

C- rivers erode the land and stuff with the fast moving currents

A- no idea what that is but if needed to guess it’s a zone for tides tides do something similar to rivers with erosion I’d go with C though sorry if wrong

6 0
3 years ago
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