sierram298

01.10.2019 • 

Chemistry

The proton-proton chain (a) combines two hydrogen nuclei to produce a single helium nucleus and energy.(b) splits a helium nucleus to produce 4 hydrogen nuclei and energy.(c) is the mechanism that increases the temperature between the photosphere and corona of the sun.(d) is the interactions between protons in earth's atmosphere that produces auroras.(e) produces energy in the core of the sun in the form of gamma-rays, positrons, and neutrinos.

Ответ:

eswi9731

20.06.2021

Chemistry

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27 g

Explanation:

From the question,

n = Mv Equation 1

Where n = number of mole of Al₂SO₄,  M = Molarity of Al₂SO₄, v = Volume of the solution.

Given: M = 0.12 mol/L, v = 1.5 L.

Substitute these values into equation 1

n = 0.12×1.5

n = 0.18 mol

Also,

n = Mass(m)/Molar mass (m')

n = m/m'.

m = n×m' Equation 2

Given: The molar mass of Al₂SO₄ = (27×2)+32+(16×4) = 150 g/mol

Substitute into equation 2

m = 0.18×150

m = 27 g

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