Answer:
Answer is 72.15 or 0.07215
Explanation:
Given,
Initial molarity M1 = 3.21M
Initial volume V1 = 25.4mL
Final molarity of M2 = 1.13 M
Final volume V2 = ?
M1×V1=M2×V2
M1×V1/M2=V2
3.21M×25.4/1.13=V2
V2=72.15 mL. 1 mL=0.001 L
V2= 0.07215
The mass lost through radioactive decay is 0.094 kg.
<h3>What is the mass lost in a radioactive decay?</h3>
The mass loss in a nuclear reaction such as a radioactive decay is known as mass defect.
The lost mass is converted to energy released during the decay process.
The energy and mass are related by the formula:
where
m is mass
E is energy
c is speed of light = 3.0 * 10⁸ m/s
Mass lost = E/c²
mass lost = 8.5 * 10¹⁵/(3.0 * 10⁸)²
mass lost = 0.094 kg
Therefore the mass lost is 0.094 kg.
Learn more about mass defect at: brainly.com/question/16485729
#SPJ1
Answer:
it has oxidized because it has has given out 2 ions
This chemist was most likely investigating the solubility of the substance<span>. Solubility is the chemical property that refers the maximum amount of solute that can be dissolved in a certain amount of solvent at a given temperature and pressure. Here the 33 g of the unknown substance is the solute and the 100 ml of water is the solvent. The solubility is expressed as 33 g / 100 g of water.</span><span />
Answer:
equal to
Explanation:
This question is depicting the LAW OF CONSERVATION OF MASS/MATTER, which states that matter can neither be created nor destroyed. Hence, in an isolated system, the original mass of the reactants must be EQUAL TO the final mass of the products formed.
In other words, the law states that no matter the change in chemical composition of the reactants in a chemical process, the mass does not change or it remains constant.
