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3 years ago

What what is the equation for percent error

1 answer:

5 0

When you calculate results that are aiming for known values, the percent error formula is useful tool for determining the precision of your calculations. The formula is given by: The experimental value is your calculated value, and the theoretical value is your known value.

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Naya [18.7K]

Answer:

x = 231/90 Th

Explanation:

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3 years ago

True or false an atom is the smallest particle of a whole element

alina1380 [7]

True, as an atom has the same chemical properties as the first bulk element. Dalton’s Atomic Theory explains all :))

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3 years ago

Very good electrical conductivity

bonufazy [111]

Huh? I need more info to answer this

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3 years ago

(a) Which elements are most likely to form ionic compounds? (b) Which metallic elements are most likely to form cations with dif

elena-s [515]

Answer:

A. Generally ionic compounds are formed metal and non metal elements since they forms opposite charged ions due to difference in their Electronegativity values.

NaCl, MgCl2, Ca(OH)2 etc are ionic compounds.

B. Generally transition elements (D elements) forms cations with different charges or simply they exist in different oxidation states due to availability of empty d orbitals.

Examples are Iron exsits as Fe+2 and Fe+3

Mn exists as Mn+2 , Mn+4, Mn+6 ,Mn+7 etc.

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3 years ago

For The Reaction CH3COOH ---> CH3COO- + H+, which of the following statements is true? A.) Ch3COOH is a Bronsted Lowry base.

Savatey [412]

Answer: Option (C) is the correct answer.

Explanation:

According to Arrhenius, bases are the species which when dissolved in water will give hydroxide ions, that is, $OH^{-}$ .

For example, $NaOH + H_{2}O \rightarrow Na^{+} + OH^{-}$

Arrhenius acids are the species which when dissolved in water will give hydrogen ions, that is, $H^{+}$ .

For example, $CH_{3}COOH + H_{2}O \rightleftharpoons H_{3}O^{+} + CH_{3}COO^{-}$

In water, when an acid loses a hydrogen ion then the specie formed is known as conjugate base.

Here, $CH_{3}COO^{-}$ is the conjugate base of $CH_{3}COOH$ .

Similarly, species which accept the hydrogen ion result in the formation of conjugate acid.

Hence, $H_{3}O^{+}$ is the conjugate acid of $H_{2}O$ .

Thus, we can conclude that $CH_{3}COO^{-}$ is the conjugate base.

7 0

3 years ago

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