Chemistry, asked by JobanJosan123, 11 months ago

Please give me the answer

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Answered by nitulnitin5432

1. we know that,

the mass of 1 mole oxygen = 16g

now,
the mass of 0.2 mole oxygen =(0.2×16)g
=3.2 g

2. we know that,

the mass of 1 mole water molecule =18g

now,
the mass of 0.5 mole water molecule,
=(0.5×18)g
=9g

is it your answer please mark as brainalist

JobanJosan123: and thanks

Anonymous: oxygen is O2 its molar mass is 32 not 16

nitulnitin5432: here he tell about only o not o2

Anonymous: where u saw that ? huh ?

nitulnitin5432: here o is atom not molecule

Anonymous: Yeahhhh right ,, thankx its oxygenation ,

nitulnitin5432: thanks toh mujhe kehna chahie akirkar tumne jo somjha

Anonymous: lol yeah

nitulnitin5432: hi

nitulnitin5432: kaha se hoo ap

Answered by Anonymous

$\huge\pink{As-Salamu-Alykum}$

_____________

Mass of Oxygen =?

Moles of Oxygen =0.2mol

Molar mass of oxygen = 16 g/mol

Mass of oxygen = Moles × Molar mass

Mass of oxygen = 0.2 ×16

Mass of oxygen =3.2 g

-------

Mass of H2O =?

Moles of H2O = 0.5mol

Molar mass of H2O =18g/mol

Mass of H2O = moles × molar mass

Mass of H2O = 0.5×18

Mass of H2O = 9 g

________________

$\huge\purple{INSHALLAH\;it\;will\;help\;U}$

JobanJosan123: thanks

Anonymous: wlcm

nitulnitin5432: I am sorry, but it is wrong. the mass of 1 mole oxygen is 16g

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