What is the correct name for the ionic compound, MgCl2?

How many half-lives would something have gone through if you had 75% daughter product and 25% parent?

levacccp [35]

Answer:

Two Half-lives

Explanation:

Let number of Parent nuclei Initially present be X,

Then, finally $\frac{X}{4}$ Parent nuclei Will remain with $\frac{3X}{4}$ daughter nuclei.

In one half- life , parent nuclei becomes half of initial.

So, starting with X parent nuclei,

After one half-life, it will degrade to $\frac{X}{2}$ .

After another half life , Parent nuclei will become half of $\frac{X}{2}$

Which is equal to $\frac{X}{4}$ .

So, Parent nuclei have to go through Two half-lives.

6 0

3 years ago

A naoh (aq) stock solution was created by dissolving 3.88 g naoh in water to create a 100.00 ml solution. what is the concentrat

Bess [88]

0.0381g/mL will be concentration of this solution

The ratio of a solute—a substance that dissolves—to a solvent—a substance that does not dissolve—determines the concentration of a solution in chemistry. C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the overall volume of the solution, is the accepted formula.

How to reach the solution?

First find for the density of NaOh which is 2.13 g/cm3

3.88 ÷ 2.13 = 1.82mL

100mL + 1.82mL = 101.82mL

3.88 ÷ 101.82mL = 0.0381g/mL

More about NaOh:

The extremely adaptable chemical sodium hydroxide (NaOH), sometimes referred to as caustic soda or lye, is employed in a range of manufacturing processes. A byproduct of the manufacturing of chlorine is sodium hydroxide. Numerous items that are used on a daily basis, including paper, metal, drain and oven cleansers for industry, soap, and detergents, are made with sodium hydroxide.

Learn more about Naoh here:

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5 0

1 year ago

The graph below shows the decay of a radioactive isotope. What is the half-life of the isotope?

Stells [14]

I think the answer is b

3 0

2 years ago

The compound cisplatin has been extensively studied as an antitumor agent. It is synthesized by the following, unbalanced reacti

zimovet [89]

The balanced chemical equation would be as follows:

<span>K2PtCl4(aq) + 2NH3(aq) --> Pt(NH3)2Cl2(s) + 2KCl(aq)

We are given the amount of </span>K2PtCl4 to be used in the reaction. This will be the starting point for our calculations. We do as follows:

65 g K2PtCl4 ( 1 mol / 415.09 g ) ( 1 mol Pt(NH3)2Cl2 / 1 mol K2PtCl ) ( 300.051 g / 1 mol ) = 46.99 g Pt(NH3)2Cl produced

6 0

2 years ago

Read 2 more answers

8th grade Science Help<br><br> Please Don't go off what i said

julia-pushkina [17]

Actually your answer is correct. Your answer that you picked is correct because the basic SI unit for mass is a kilograms, so therefore your answer is 13kg which you picked.

3 0

2 years ago