Answer:
Explanation:
1 mol of sodium = 23 grams (use the number on your periodic table).
0.7350 mol sodium = x
Cross multiply
1*x = 0.7350 * 23
x = 16.905
You will get slightly less than this, depending on your periodic table. But the method will be the same.
Answer:
C released to the environment
Explanation:
I just did it in class
Answer:0.8910 mols of NaOH in a 35.65 g sample of NaOH
Explanation:
Answer:
Explanation:
Answer:
A. to determine the efficiency of the reaction
Explanation:
Percentage is the ratio of the actual yield to theoretical yield as a percentage. It is calculated by dividing the actual yield by theoretical yield then multiplying by 100%.
Calculation of percentage yield is important as it helps in the determination of efficiency of a reaction. For example in most industries for the purpose of making the most product with the least waste.
Additionally, calculating the percentage yield helps in determining other products that may be formed during the reactions.
- Symbol of the ion: Br⁻.
- Name of the ion: Bromide ion.
<h3>Explanation</h3>
Br is the symbol for the element bromine. It is found in new IUPAC group 17 of a modern periodic table. Bromine is a halogen.
To name a halogen anion with charge -1, replace the suffix "-ine" in the name of the element with the suffix "-ide." For example,
![\displaystyle \begin{array}{lcl} \text{Element}& & \text{Ion}\\ \text{Brom}\textbf{ine} &\to& \text{Brom}\textbf{ide}\text{ ion} \\\text{Chlor}\textbf{ine} &\to & \text{Chlor}\textbf{ide}\text{ ion}\\\text{Fluor}\textbf{ide}& \to & \text{Fluor}\textbf{ide}\text{ ion}\end{array}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbegin%7Barray%7D%7Blcl%7D%20%5Ctext%7BElement%7D%26%20%26%20%5Ctext%7BIon%7D%5C%5C%20%5Ctext%7BBrom%7D%5Ctextbf%7Bine%7D%20%26%5Cto%26%20%5Ctext%7BBrom%7D%5Ctextbf%7Bide%7D%5Ctext%7B%20ion%7D%20%5C%5C%5Ctext%7BChlor%7D%5Ctextbf%7Bine%7D%20%26%5Cto%20%26%20%5Ctext%7BChlor%7D%5Ctextbf%7Bide%7D%5Ctext%7B%20ion%7D%5C%5C%5Ctext%7BFluor%7D%5Ctextbf%7Bide%7D%26%20%5Cto%20%26%20%5Ctext%7BFluor%7D%5Ctextbf%7Bide%7D%5Ctext%7B%20ion%7D%5Cend%7Barray%7D)
The symbol of a bromine atom is Br. The atom is neutral. However, it carries a negative charge of -1 after it gains one electrons and forms a negative ion. The charge of the bromide ion shall be written as a superscript in its symbol. The size of the charge is written in front of the sign.
The charge on the bromide ion is -1. In the superscript, omit the number 1 and write "-". Hence the symbol
.