3 years ago

How many fluid ounces is 3 cups

Chemistry

1 answer:

Feliz [49]3 years ago

3 0

Answer:

Explanation:

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2Li + H2SO4=Li2SO4 + H2 How many liters of hydrogen gas, H2 at STP can be produced from 3.0 moles of Li? The molar volume of a g

Gemiola [76]

Answer:

volume of $H_2=33.6 litre$

Explanation:

Firstly balance the given chemical equation,

$2Li + H_2SO_4=Li_2SO_4 + H_2$

From the given balance equation it is clearly that,

2 mole of Li gives 1 mole of H2 gas

$2 mole Li$ ⇔ $1 mole H_2$

$1 mole Li$ ⇔ $0.5 mole H_2$

$3 mole Li$ ⇔ $1.5 mole H_2$

hence

3 mole of Li will give 1.5 mole H2 gas

therefore volume of gas produced from 3 mole Li at $STP = 1.5\times22.4 \frac{L}{mol}$

volume of H2=33.6 litre

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3 years ago

Are silver spoons tarnished and turned black, chemical or physical property?

zavuch27 [327]

He ability to rust is a chemical property of iron. The metal silver does not rust, but eventually a darker substance called tarnish forms on its surface. The chemical properties of copper cause it to become a blue-green color when it is exposed to air

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3 years ago

What is the ph of a solution with [h+] = 2.3 10-9?

oksano4ka [1.4K]

$pH = -log[H+] = -log[2.3*10^-9] = 8.64$