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MaRussiya [10]
3 years ago
7

If you had 14.5 moles of gold, how many atoms would you expect to have?

Chemistry
1 answer:
Tju [1.3M]3 years ago
6 0

Answer:

(14.5 mol) x (6.022 x 10^23 atoms/mol) = 8.73 × 10^24 atoms

Explanation:

pls mark brainliest

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#15: identify which of the following atoms has the highest electronegativity and choose the statement that best explains why thi
zhenek [66]

Answer:

Nitrogen

It has the least number of protons in the group hence making it smaller

Explanation:

According to periodic table, electronegativity increases across the period and decreases down the group.

Electronegativity is the tendency of an element to accept electrons towards itself.

In this group of elements, nitrogen has the highest electronegativity because it has the least number of protons in the group. Increase in the number of protons decreases an elements electro negative value.

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Electronegativity increases across the period and decreases down the group while electropositivity decreases across the period and increases down the group.

7 0
3 years ago
A 6.35 l sample of carbon monoxide is collected at 55.0◦c and 0.892 atm. What volume will the gas occupy at 1.05 atm and 59.0◦c?
Sonja [21]

Answer : The final volume of gas will be, 5.46 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 0.892 atm

P_2 = final pressure of gas = 1.05 atm

V_1 = initial volume of gas = 6.35 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 55.0^oC=273+55.0=328K

T_2 = final temperature of gas = 59.0^oC=273+59.0=332K

Now put all the given values in the above equation, we get:

\frac{0.892atm\times 6.35L}{328K}=\frac{1.05atm\times V_2}{332K}

V_2=5.46L

Thus, the final volume of gas will be, 5.46 L

7 0
3 years ago
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