2. What is the mass of the air contained in a room 6m X 5m x 4m if the pressure is 100 kPa and the temperature is 25°C? Answer: 140.269 kg

Does a polar solvent promote dissociatin of ionic solutes? A.More information is needed B. yes C.No

Which example accurately describes a solution? O Nonpolar fat molecules dissolve in water, which is polar. O Nonpolar oil molecules dissolve in water, which is polar. O Polar sugar molecules dissolve in water, which is polar. O Polar sugar molecules dissolve in oil, which is nonpolar. Type here to search

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solutioni is water. In a hardware store, you can buy industrial strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume of vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (m) vs Time (s) for Volcano t Time (s) Volume of gas produced (mL) 10 25 38 40 20 30 46 30 Volume of gas produced (ml) 50 40 50 52 60 53 40 Time ( 20 60 Volcano 2 Volume of gas produced iml) vs. Time is) for Vocano 2 Volume of…

why there is 10^-16.5144 instead of 10^16.5144?