<h3>
Answer:</h3>
1.63 M
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Chemistry</u>
<u>Unit 0</u>
- Reading a Periodic Table
- Writing Compounds
<u>Aqueous Solutions</u>
- Molarity = moles of solute / liters of solution
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
1.43 mol NaCl (sodium chloride)
0.875 L solution
<u>Step 2: Find M</u>
- Substitute [M]: x M = 1.43 mol NaCl / 0.875 L
- Divide: x = 1.63429 M
<u>Step 3: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
1.63429 M ≈ 1.63 M
Answer:
You can test whether or not the object is more or less dense than what by having, “80mL” (as long as the amount of water is easy to read and doesn’t overflow). You take all the object you want to test for, slowly and carefully drop the object into the water. If the Object sinks it is more dese and if it floats it is less dense. To find the exact density of the tested objects look at how much water is being displaced in the container and subtract the amount of water from that to get volume. Then, (or before putting the object into water) weight the object to find its mass. Next you divide the mass in mL by the volume to get the exact density.
Explanation:
Answer:
Glass is not metal, it's made from sand and is composed of silicon dioxide
Answer:
The oxygen will appear in the final stage if the oxygen is excess from the beginning.
Explanation:
1. C +(1/2)O2 —> CO
2. CO+(1/2)O2—> CO2
The first stage explains that the oxygen is limited and hence CO is produced.
The 2nd stage explains that if the oxygen is excess, then CO2 will be produced.
The overall reaction when oxygen is excess is given by:
C + O2 —> CO2
A pH of 7 is neutral in terms of acidity, it means the substance is neither basic nor acidic. A pH above 7 indicates a basic solution, while a pH below 7 indicates acidiity. If a weak base react with a strong acid, the strong acid will release more H⁺ ions than the OH⁻ ions released by the weak base, which means the salt will be acidic, or will have a pH below 7.
The best answer is 2.0