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3 years ago

Calculate the [OH-] [H+]=0.000025

Chemistry

1 answer:

Harman [31]3 years ago

3 0

Explanation:

There are several ways to define acids and bases, but pH and pOH refer to hydrogen ion concentration and hydroxide ion concentration, respectively. The "p" in pH and pOH stands for "negative logarithm of" and is used to make it easier to work with extremely large or small values. pH and pOH are only meaningful when applied to aqueous (water-based) solutions. When water dissociates it yields a hydrogen ion and a hydroxide.

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Pentanitrogen heptachloride formula

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Answer:

Explanation:

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3 years ago

Why is it important to predict consequences when decision-making?

zavuch27 [327]

The correct answer is b

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3 years ago

What is the total volume of gaseous products formed when 116 liters of butane (C4H10) react completely according to the followin

Contact [7]

Answer: The total volume of the gaseous products is 1044.29 L

Explanation:

We are given:

Volume of butane = 116 L

At STP:

22.4 L of volume is occupied by 1 mole of a gas

So, 116 L of volume will be occupied by = $\frac{1}{22.4}\times 116=5.18mol$ of butane

The chemical equation for the combustion of butane follows:

$2C_4H_{10}(g)+13O_2(g)\rightarrow 8CO_2(g)+10H_2O(g)$

For carbon dioxide:

By Stoichiometry of the reaction:

2 moles of butane produces 8 moles of carbon dioxide

So, 5.18 moles of butane will produce = $\frac{8}{2}\times 5.18=20.72mol$ of carbon dioxide

Volume of carbon dioxide at STP = (20.72 × 22.4) = 464.13 L

For water vapor:

By Stoichiometry of the reaction:

2 moles of butane produces 10 moles of water vapor

So, 5.18 moles of butane will produce = $\frac{10}{2}\times 5.18=25.9mol$ of water vapor

Volume of water vapor at STP = (25.9 × 22.4) = 580.16 L

Total volume of the gaseous products = [464.13 + 580.16] = 1044.29 L

Hence, the total volume of the gaseous products is 1044.29 L

3 0

3 years ago

What is the IUPAC name of this compound? ________ CH3-CHCl-CH2-CH2-Cl

Diano4ka-milaya [45]

Answer:

The prefixes are fluoro-, chloro-, bromo-, and iodo-. Thus CH 3CH 2Cl has the common name ethyl chloride and the IUPAC name chloroethane. Alkyl halides with simple alkyl groups (one to four carbon atoms) are often called by common names.05‏/06‏/2019

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3 years ago

Read 2 more answers

What is TRUE of a compound?

zalisa [80]

Answer:

It does not always retain the properties of the substances that make it up

It requires heat energy to make

Explanation:

A compound is a chemical substance composed of two or more kinds of atoms or elements joined together in a definite grouping.

The properties of compounds are distinct from those of individual elements that are combined in its make up.

To produce a compound, a chemical change must take place
As with most chemical changes, heat is required to drive the change.
So, to form compounds, some amount of heat is needed to cause the change.

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3 years ago