4 years ago

Someone help me i don’t understand it

Chemistry

1 answer:

Troyanec [42]4 years ago

3 0

Use PV=nRT to help you

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Using the trend for chlorine, create a rule for naming halogen oxyacids.

Vlada [557]

All oxayacids have cations so no need to name the cation (H+) If name of polyatomic anion ends in -ate change to -ic for acid and if it ends with -ite change to -ous for acid

example:

ion nitrate is called nitric acid
ion nitrate is called nitrous acid

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3 years ago

How many mL of 2.0 M KOH are necessary to neutralize 50 mL of 1 M HCl?

worty [1.4K]

Answer:

25mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this can help you. Have a nice day!

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4 years ago

at a certain pressure the density of superficial carbon dioxide is 0.469. what is the mass of a 25.0 mL sample of supercritical

Murrr4er [49]

Answer:

$\large \boxed{\text{11.7 g}}$

Explanation:

$\text{Mass} = \text{25.0 mL} \times \dfrac{\text{0.469 g}}{\text{1 mL}} = \textbf{11.7 g}\\\\\text{The mass of the carbon dioxide is $\large \boxed{\textbf{11.7 g}}$}$