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2 years ago

What is the relationship between the density and position of each Earth layer?

Chemistry

2 answers:

const2013 [10]2 years ago

7 0

Answer:

Gravity pulls more strongly on denser materials so denser materials are at the center of things.

Explanation:

Earths core at its center is denser than its crust the lowest layer of the atmosphere is denser than the upper layer

vredina [299]2 years ago

6 0

Answer:

The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust. The lowest layer of the atmosphere is denser than the upper layer.

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A buffer is prepared by dissolving 0.80 moles of NH3 and 0.80 moles of NH4Cl in 1.00 L of aqueous solution. If 0.10 mol of NaOH

Vikki [24]

Answer:

a. 10.54

Explanation:

reaction is

NH₃ + NaOH -----------------NH₄Cl + H₂O

0.10 mol NaOH will consume 0.10 mol NH₃ thereby decreasing the initial amount of moles NH₃ and increasing that of NH₄Cl

mol NH₃ = 0.80 - 010 = .70

mol NH₄Cl = 0.80 + .10 = 0.90

pH = pKₐ + log (( NH₃/NH₄Cl))

pH = 9.26 + log (( 0.90 + 0.70)) = 9.26 + 0.11 = 10.54

7 0

3 years ago

Determine the concentration of an HBr solution if a 45.00 mL aliquot of the solution yields 0.5555 g AgBr when added to a soluti

amid [387]

Molecular weight of AgBr = 187.7
moles of Ag = $\frac{0.5555}{187.7} = 2.96 x 10^{-3}$
moles of Br = moles of Ag = 2.96 x 10⁻³ mol
concentration of HBr (Molarity) = conc. of Br (strong acid) = $\frac{2.96 x 10^{-3} }{45 x 10^{-3} } = 0.0658 mol/l$

6 0

3 years ago

Read 2 more answers

In an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, whi

Bingel [31]

What are the options? based on the volume it can differ but in general pipettes and graduated cylinder are the best. <span />

7 0

3 years ago

Planets close to a star will have __ orbital velocities than planets farther from a star.

Naddika [18.5K]

Answer:

The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun's gravitational pull, and the slower it moves in its orbit.

5 0

3 years ago

What is the molarity (M) of the following solutions?

Dennis_Churaev [7]

Answer:

The molarity (M) of the following solutions are :

A. M = 0.88 M

B. M = 0.76 M

Explanation:

A. Molarity (M) of 19.2 g of Al(OH)3 dissolved in water to make 280 mL of solution.

Molar mass of Al(OH)3 = Mass of Al + 3(mass of O + mass of H)

= 27 + 3(16 + 1)