2 years ago

Why do different molecules require different masses to make 1 mol

1 answer:

3 0

Answer:

Different substances have different molecular masses. Thus, equal masses have different numbers of atoms, molecules, or moles. On the other hand, equal numbers of moles of different substances have different masses.

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The nucleus of one lithium atom has three protons and four neutrons. what is the total charge of the lithium nucleus.

Xelga [282]

Since protons are postive and neutrons are neutral. Then it is postive.

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to find the mass of 3.2 moles of calcium for carbonate which of the following is used to calculate the amount

natka813 [3]

I believe it to be g/mol of Calcium carbonate
because to finde mass...u must have grams(g) as units....
it is the only one that have g as units

as for the first answer the avogadros number gives u the number of atoms in one mole of calcium carbonate....
the second one is based on ... At s.t.p one mole of gas occupies 22.4 dm³⇒to find volume

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2 years ago

The seasons are caused by

azamat

Answer:

The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun

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43 moles feci3 are dissolved in 0.64l of solution what is the molarity of the solution

nasty-shy [4]

Molarity=moles/liter
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3 years ago

Please help it’s due today I will give brainliest

Thepotemich [5.8K]

1st and 4th options are suitable answers, as these 2 changes are not exactly physical changes as it cant return back to original form and as well as its not cooling, so I feel its 1st and 4th options

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2 years ago