If you have 200 grams of SO4, how many molecules of SO4 will you have?

2.08 moles

Explanation:

number of molecules = mass / molecular mass of SO₄

number of molecules = 200 g / 96.06 g/mol

number of molecules ≈ 2.08

1.25x10^24 molecules

Explanation:

1 mole of any substance contains 6.02x10^23 molecules.

Therefore, 1mole of SO4 also contains 6.02x10^23 molecules.

1mole of SO4 = 32 + (16x4) = 32 + 64 = 96g

If 1mole( i.e 96g) of SO4 contains 6.02x10^23 molecules,

Therefore 200g of SO4 will contain = (200 x 6.02x10^23) /96

= 1.25x10^24 molecules

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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