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3 years ago

Nitrogen dioxide gas is formed by reaction of nitrogen monoxide gas and oxygen gas

Chemistry

1 answer:

NeTakaya3 years ago

3 0

Answer:

For the formation of nitrogen dioxide, the reactants used are nitrogen monoxide and oxygen gas. 2 moles of nitrogen monoxide gas react with 1 mole of oxygen gas to produce 2 moles of nitrogen dioxide gas.

Explanation:

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At 25 °c, what is the hydroxide ion concentration, [oh–], in an aqueous solution with a hydrogen ion concentration of [h ] = 3.0

chubhunter [2.5K]

As,

Water has a pkw=14

so it can be represented as,

[H+] [OH-] = 1*10^-14

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3 years ago

*multiple choice*

galben [10]

1.95 or 2 is the molarity of a 45.3g sample of KNO3 (101g) dissolved in enough water to make a 0.225L solution.

The correct answer is option b

Explanation:

Data given:

mass of KN $O_{3}$ = 45.3 grams

volume = 0.225 litre

molarity =?

atomic mass of KNO3 = 101 grams/mole

molarity is calculated by using the formula:

molarity = $\frac{number of moles}{volume of the solution}$

first the number of moles present in the given mass is calculated as:

number of moles = $\frac{mass}{atomic mass of 1 mole}$

number of moles = $\frac{45.3}{101}$

0.44 moles of KNO3

Putting the values in the equation of molarity:

molarity = $\frac{0.44}{0.225}$

molarity = 1.95

It can be taken as 2.

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What are the effects of inhalation of acetone vapor?

Ipatiy [6.2K]

Answer:

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