3 years ago

Check wether all the answers are correct or not. please?

Chemistry

2 answers:

slavikrds [6]3 years ago

8 0

You spelled whether wrong

zhenek [66]3 years ago

3 0

Answer:

I dont now but I think it is correct

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How many moles is 22.4 liters of oxygen gas at standard temperature and pressure represent

makkiz [27]

Answer:

So 1 mole

Explanation:

PV = nRT

P = Pressure atm

V = Volume L

n = Moles

R = 0.08206 L·atm·mol−1·K−1.

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standard temperature = 273K

standard pressure = 1 atm

22.4 liters of oxygen

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3 years ago

5 H2O2(aq) + 2 MnO4-(aq) + 6 H+(aq) → 2 Mn2+(aq) + 8 H2O(l) + 5 O2(g) In a titration experiment, H2O2(aq) reacts with aqueous Mn

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Answer:

Oxygen in hydrogen peroxide oxidizes from -1 to 0.

Explanation:

Oxidation is the loss of electrons. The specie which is oxidized has has elevation in its oxidation state as compared in the reactant and the products.

The given reaction is shown below as:

$5 H_2O_2_{(aq)} + 2 MnO_4^-_{(aq)} + 6 H^+_{(aq)}\rightarrow 2 Mn^{2+}_{(aq)} + 8 H_2O_{(l)} + 5 O_2_{(g)}$

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Thus, oxygen in hydrogen peroxide oxidizes from -1 to 0.

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Check wether all the answers are correct or not. please?​

Check wether all the answers are correct or not. please?