How do convection currents cause the motion of tectonic plate

1 answer:

8 0

Rising magma pushes against and along tectonic plates, which eventually moves the plates together, apart, or along each other.

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A student was asked to prepare 500.0 mL of 6.0 M NaOH. The student measured 120.0 g of NaOH and placed it in a 1000 mL beaker. T

Morgarella [4.7K]

Answer:

The concentration of the solution will be much lower than 6M

Explanation:

To prepare a solution of a solid, the appropriate mass is taken and accurately weighed in a weighing balance and then made up to mark with distilled water.

From

n= CV

n = number of moles m/M( m= mass of solid, M= molar mass of compound)

C= concentration of substance

V= volume of solution

m=120g

M= 40gmol-1

V=500ml

120/40= C×500/1000

C= 120/40× 1000/500

C=6M

This solution will not be exactly 6M if the student follows the procedure outlined in the question. The actual concentration will be much less than 6M.

This is because, solutions are prepared in a standard volumetric flask. Using a 1000ml beaker, the student must have added more water than the required 500ml thereby making the actual concentration of the solution less than the expected 6M.

7 0

3 years ago

Solve the 3 questions

Dmitrij [34]

Answer:

what kind of math is this

Explanation:

5 0

3 years ago

How many Zn atoms are there in 4.65 moles of Zn?

Nesterboy [21]

So your answer would pretty much be 2.80 x 10^24. The picture is just the explanation and how you would get that answer.