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3 years ago

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Write the chemical equation for the equilibrium that corresponds to Ka. Write the chemical equation for the equilibrium that cor

responds to . H+(aq)+NO−2(aq)⇌HNO2(aq) HNO2(aq)⇌H+(aq)+NO−2(aq) HNO2(aq)⇌H−(aq)+NO+2(aq) HNO2(aq)+H+(aq)⇌H2NO+2(aq) HNO2(aq)+H−(aq)⇌H2NO+2(aq)

1 answer:

viva [34]3 years ago

6 0

Answer:

H+AQ=POP

Explanation:

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If you assume this reaction is driven to completion because of the large excess of one ion, what is the concentration of [Fe(SCN

viktelen [127]

Answer : The concentration of $[Fe(SCN)]^{2+}$ is, $4.32\times 10^{-4}M$

Explanation :

When we assume this reaction is driven to completion because of the large excess of one ion then we are assuming limiting reagent is $SCN^-$ and $Fe^{3+}$ is excess reagent.

First we have to calculate the moles of KSCN.

$\text{Moles of }KSCN=\text{Concentration of }KSCN\times \text{Volume of solution}$

$\text{Moles of }KSCN=0.00180M\times 0.006L=1.08\times 10^{-5}mol$

Moles of KSCN = Moles of $K^+$ = Moles of $SCN^-$ = $1.08\times 10^{-5}mol$

Now we have to calculate the concentration of $[Fe(SCN)]^{2+}$

$\text{Concentration of }[Fe(SCN)]^{2+}=\frac{\text{Moles of }[Fe(SCN)]^{2+}}{\text{Volume of solution}}$

Total volume of solution = (6.00 + 5.00 + 14.00) = 25.00 mL = 0.025 L

$\text{Concentration of }[Fe(SCN)]^{2+}=\frac{1.08\times 10^{-5}mol}{0.025L}=4.32\times 10^{-4}M$

Thus, the concentration of $[Fe(SCN)]^{2+}$ is, $4.32\times 10^{-4}M$

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2 years ago

2 HCl + Na2SO4 > 2 NaCl + H2SO4

Cerrena [4.2K]

Answer:

15

Explanation:

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2 years ago

Todd drives west to work;54km on way in 1.5hours and then drives home in 2hrs. What is his velocity on the way to work? What is

Nataly [62]

Answer:

Explanation:

Velocity is a physical quantity that expresses the relationship between the space traveled by an object, the time taken for it and its direction. In other words, velocity is associated with the change of position of a body over time.

Its unit in the International System of Units is the meter per second ( $\frac{m}{s}$ ), but it can also be expressed in $\frac{km}{hr}$

So, in this case, the speed on the way to work will be:

$velocity=\frac{54 km}{1.5 hours}$

velocity= 36 $\frac{km}{hr}$

The velocity on the way back home will be:

$velocity=\frac{54 km}{2 hours}$

velocity= 27 $\frac{km}{hr}$

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3 years ago

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Which atom has the largest atomic radius

Greeley [361]

francium , in the Periodic table the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. making helium is the smallest element, and francium the largest.

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A rectangular solid has the following measurements 6 cm, 10 cm, and 5 cm. what is the volume of the solid?

AysviL [449]

300cm cubed ( have a great night! )

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2 years ago