A graduate student is working in his lab. In order to continue his experiment, he needs to calculate the total number of ions in 9.24 mol of CaBr 2 . Calculate the total number of ions in the sample.

We have 9.24  moles Calcium ions and 18.48 moles bromide ions

Explanation:

Step 1: Data given

Number of moles CaBr2 = 9.24 moles

Step 2: The equation

CaBr2 →Ca^2+ + 2Br-

Step 3: Calculate number of moles

For 1 mol CaBr2 we have 1 mol Calcium ions and 2 moles Bromide ions

For 9.24 moles we have 1* 9.24 = 9.24  moles Calcium ions

For 9.24 moles we have 2-9.24 = 18.48 moles bromide ions

For 9.24 moles Ca^2+ we have 9.24 *6.022*10^23 =5.56*10^24 Calcium ions

For 18.48 moles Br- we have 1.1 * 10^25 bromide ions

1.67×10²⁵ ions in 9.24 moles of CaBr₂

Explanation:

First of all, we need to dissociate our compound:

CaBr₂ →  Ca²⁺  +  2Br⁻

This equation means, that 1 mol of calcium bromide dissociates in 3 moles of ions (1 mol of Ca²⁺ and 2 moles of bromide, Br⁻)

Let's make a rule of three:

In 1 mol of bromide we have 3 moles of ions

Then, in 9.24 moles of bromide we must have (9.24 . 3) /1 = 27.72 moles

Let's count the ions: 27.72 mol . 6.02×10²³ ions / 1mol = 1.67×10²⁵ ions

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

law of conservation of matter