3. A vapor is which state of matter? (1 point) solid liquid gas all of the above
1 answer:
You might be interested in
Answer:
57 L
Explanation:
Step 1: Convert the temperature to Kelvin
When working with gases, we always use the absolute temperature scale.
Step 2: Convert the pressure to atmospheres
Step 3: Calculate the volume of the Ne sample
We will use the ideal gas equation.
Answer:
248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.
Explanation:
We can calculate the volume of the 5% w/v boric acid solution needed to prepare the buffer solution 1.24% w/v using the following equation:
Where:
: is the concentration of the initial solution = 5% w/v
: is the concentration of the final solution = 1.24% w/v
: is the volume of the initial solution =?
: is the volume of the final solution = 1 L
Hence, the volume of the 5% solution is:
Therefore, 248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.
I hope it helps you!