Coal hypothesis = Coal will contaminate the water source making it more acidic. 2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this. a. Pyrite hypothesis accept/reject = Accept, because the pH level did rise within the 48 hour period during the experiment.
With renal compensation for respiratory acidosis, the pH of the urine You correctly answered: b. decreased because [H+ ] increased. 07/18/13 page 3 Review Sheet Results 1. Describe what happened to the concentration of ions in the urine when the
EXPERIMENT 11 Molar Mass of a Volatile Liquid DATA Run | UNKNOW | Mass of flask and foil(g) | 90.085g | Mass of flask and foil and condensed vapor (g) | 90.640g | Temperature of boiling water (˚C ) | 98˚C | Barometric pressure (torr) | 761mm Hg | Volume of flask (mL) | 140 mL | RESULTS Mass of unknown ( condensed vapor) | 0.555g | Volume of flask (vapor)(L) | 0.14 L | Temperature of vapor(k) | 371K | Molar mass of unknown (g/mole) | 118.380 g/mole | Advance Study Assignment 1) How would each of the following errors affect the outcome of this experiment? Would it make the molar mass high or low? Give your reasoning in three sentences or less in each case. a) The hole in the aluminum foil was quite large. if you were to have a larger hole in your aluminum cap, you would be losing vapor to the room.
For part 2, do the same thing as part 1 except use an unknown hydrate and calculate the percent mass of water in an unknown hydrate. Observations Part 1 At first the hydrate was a crystal red color. When it was placed on the hot plate and its state changed it began to change color. As it heated it started to become liquidly and bluish in color. Once it cooled down it became a purplish black color.
What is heat stroke ? Heat stroke is the illness that a core body temperature greater than 105 degrees Fahrenheit (40.6 °C ) , It is associated with central nervous system that occur after exposure to high temperatures due to environmental heat exposure. This is distinct from a fever, where there is a physiological increase in the temperature set point of the body. Heat stroke is not the same as a stroke. "Stroke" is the general term used to describe decreased oxygen flow to an area of the brain.
This would affect the volume of gas captured in the pipette. And with a limited amount of sucrose its possible sucrose wouldnt properly fill in as a source of glucose for cellular respiration. Another source of error would be that we didnt let the burner heat up all the way to the correct temperature so that would affect the outcome massively and significantly. Also when we had 10% sucrose, we only recorded the time two times, compared to the other percentages of sucrose where we had many other trials and times recorded. We also found problems when we had placed clay on the tip of the pipette to seal the air out.
The following mistakes were made when carrying out the experiment. What effect does each have on the calculated molar mass? Be specific. For example, too large because… Only part of the pipet was immersed in the boiling water, so the temperature in part of the pipet was less than that of the water bath. If the temperature was less than the water bath in some places because only part of the pipet was immersed in the boiling water, the molar mass calculated would become lower.
As you can see on the screen the picture of before and after the detox foot bath treatment, how does the Detox Footbath machine work and lead to the weight lose? Simple simply put your feet in the water before that don’t forget to fill the basin with water, turn on the machine and add salt. Why is salt added to the water? Water is a poor conductor of electricity on its own. After 3-5 minutes, the water started to change but the duration of times takes for water to change is slightly different for each person because its depends on our current metabolic rate.
Acetylene gas is shipped in special cylinders designed to keep the gas dissolved. The cylinders are packed with porous materials (e.g. kapok fibre, diatomaceous earth, or (formerly) asbestos), then filled to around 50% capacity with acetone, as acetylene is acetone soluble. This method is necessary because above 207 kPa (30 lbf/in²) (absolute pressure) acetylene is unstable and may explode. There is about 1700 kPa (250 psi) pressure in the tank when full.
Is there really a difference in efficiency? How are stoves dangerous and what problems could this cause? Gas stove’s price ranges between $75-200. The price depends on what model or make it is. Buying a gas stove may cause problems with installation.