⚗️ chemistry

1. The problem is to evaluate the expression $$n = \frac{(1)(6)}{(0.082057)(300)}.$$\n\n2. First, multiply the numerator values: $$1 \times 6 = 6.$$\n\n3. Next, multiply the denomi

1. Stating the problem: We want to find the percentage yield of ethanol obtained from fermentation given the actual mass of ethanol obtained is 24 g. 2. The percentage yield formul

1. Problem: Identify isotopes/ions and their nuclear properties from the given notations. 2. Each isotope/ion is represented as $^{A}_{Z}\text{Element}^{charge}$ where $A$ is the m

1. Stating the problem: Seawater contains 1.75 grams of salt per 500 milliliters of water. We need to find how many grams of salt are present in 2 liters (2000 milliliters) of seaw

1. The term $6s^2$ refers to an electron configuration notation where $6$ is the principal quantum number (energy level), $s$ is the subshell (orbital type), and $^2$ indicates two

1. The problem asks to identify the correct definition of significant figures. Answer C is correct: "The first non-zero digit and all the digits that follow" because significant fi

**Task:** Answer questions on significant figures and scientific notation. 1. **What are significant figures?**

1. Stating the problem: Calculate masses or moles for given substances and confirm the code sequence I – J – G – D – A. 2. Mass of 0.042 mol Octane (C$_8$H$_{18}$):