If an electron is released during radioactive decay which type of Decay has taken place

A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration o

HACTEHA [7]

Answer:

1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Explanation:

From the question given above, the following were obtained:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Volume of solution = 20.4 mL

Concentration of solution =?

Next, we shall determine the mass of sodium hydroxide, NaOH. This can be obtained as as illustrated below:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Mass of NaOH =?

Mass of NaOH = (Mass Cylinder + NaOH) – (Mass of empty cylinder)

Mass of NaOH = 31.92 – 9.5

Mass of NaOH = 22.42 g

Finally, we shall determine concentration of the solution as follow:

Mass of NaOH = 22.42 g

Volume of solution = 20.4 mL

Concentration of solution =?

Concentration = mass /volume

Concentration of solution = 22.42 / 20.4

Concentration of solution = 1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Therefore, the concentration of the solution is 1.1 gmL¯¹

3 0

3 years ago

Where did the longest tsunami form?

max2010maxim [7]

July 9, 1958: in Lituya Bay<span>, Alaska was caused by a landslide triggered by an 8.3 magnitude earthquake.</span>

8 0

3 years ago

Read 2 more answers

What is Planck's Law?

dangina [55]

Explanation:

Planck's law describes the spectral density of electromagnetic radiation produced by a black body in thermal equilibrium at a given temperature, where there is no net flow of matter or energy between the body and its environment.

Hope this helps : )

8 0

2 years ago

Which of the following is NOT an example of a physical property?

olya-2409 [2.1K]

Answer:

The answer to your question is: B

Explanation:

Physical properties are properties that occurs in matter but there is not change in the composition.

A. Solid ice can be very brittle. This is a physical property.

B. Water can form hydrogen and oxygen gas under electrolysis conditions. Here there is a change in the composition of matter, this is an example of chemical property

C. Water can freeze solid at 32 degrees Fahrenheit. This is a physical property.

D. Liquid water can turn into steam in a heated tea kettle. This is a physical property

E. none of the above This option is wrong because option B is correct.

8 0

3 years ago

The electronegativity values of Cl, F, H, O, and S are given below.

umka2103 [35]

D. H and S sense they seem more closer

4 0

3 years ago