first aide- move victim to fresh air, administer o2, remove all contaminated clothing, if in contact with eyes flush for 20min and wash the skin with soap and water. Immediately cool burned areas with warm water and don't remove any clothing stuck to the skin. Carbon monoxide- gas toxic and flammable. Extremely toxic when inhaled or absorbed though the skin. Isolate area for 100 meters in all directions.
He placed the his temperature scale at o degree for the boiling point, and ent downward and placed the freezing point at 100 degrees 10. What did the physicist Amonton contribute to the understanding of hot and cold? Amonton was doing heating, and cooling experiments. He saw that when he cooled the object that when the temp dropped so did the pressure. So he thought what would happen if you kept pushing the pressure back.
UNCW Honors Chemistry Lab #1- Laboratory Safety and Boiling Water Date Started: 8/26/11__________________ Date Completed __________________ Purpose: To determine the temperature at which water boils. To learn how boiling and melting are physical changes. Background Information/Observations: 1) Explain the most common scenario when you observe water boiling. 2) Explain how you could change the rate at which water boils. 3) Explain how you could change the temperature at which water boils.
If we used a stick resistant material for this step, the whole 1g would be accounted for. Also, when we poured the contents of the test tube into the 100mL beaker, not all of the solution exited. We should have tried harder to take out the entire content of the test
The resulting nuclear winter would occur causing the aforementioned minor ice age event, but it is the lack of radiation that prevents this from being a possible answer. This lack of radiation is also how we can excuse a massive nuclear war as the culprit. Though it may be a popular theory for the cause it would take a minimum of 100 accurately placed, Hiroshima sized, nuclear explosions to cause a nuclear winter. This would cause enough radiation to be released that human life would be nearly impossible regardless of other forces such as climate and
Pour the contents of one of the test tubes into the other and a reaction should occur and you should see a white precipitate of barium sulfate form. Then, centrifuge it for 1 minute. On the side, weight a boiling test tube containing 2 boiling chips. When the separation is complete, remove the small test tubes from the centrifuge and decant the supernatant into the boiling test tube. Add 1 mL of deionized water to the small test tube containing the precipitate and mix it and centrifuge it for 60 seconds.
(4 points) q = m × c × Δt Given: q=? m = 34.720g c = 4.18 j/(g x °C) Δt = 41.6°C - 25.2°C = 16.4°C q = (34.720g) (4.18 j/(g x °C) (16.4°C) q = 2380.13j You are trying to figure out the energy change of the water which is the surroundings in the lab. To do that you must take the mass of the metal, which for me was Aluminum, and multiply it by the heat capacity of the water, which was given, then multiply that by the change in temperature, which is the final temperature of the mixture
Percent H2O in Hydrate is equal 0.34/2.33=14.6% 3. The general formula of barium chloride hydrate is BaClg-nHZO, where n is the number of water molecules. Calculate the theoretical percent water for each value of n—divide the sum of the atomic masses due to the water molecules by the sum of all the atomic masses in the hydrate, and multiply the result by 100. Complete the table. | BaCl2 | BaCl2•H2O | BaCl2•2H2O | BaCl•3H2O | Sum of atomic masses (BaCl2) | 208.23 | 208.23 | 208.23 | 208.23 | Sum of atomic masses (nH2O) | 0 | 18.02 | 36.04 | 54.06 | Sum of atomic masses (hydrate) | 208.23 | 226.25 | 244.27 | 262.29 | Percent water in hydrate (theoretical) | 0% | 7.96% | 14.75% | 20.61% | In this lab we used a Balance, centigram
One of the biggest reasons to not use Yucca Mountain is because Nevada does not have one nuclear power plant. “A two-thirds majority of Nevadans feel it is unfair for their state to have to store nuclear waste when there are no nuclear power plants in Nevada”. So why would we make them take waste from states such as New York or New Jersey. Another reason that we should not use Yucca Mountain is because it is only 100 miles away from Las Vegas which has hundreds of thousands of tourist a year which if a leak occurs then they would be exposed to nuclear waste. This would not be good.
The mass of the precipitate produced is then used as an indicator of the effect of varying the quantity of the second reactant. When enough of the second reactant has been added to completely react with the first reactant, there will be no further increase in the amount of the precipitate produced, regardless of how much of the second one is added. Apparatus and Chemicals: 0.1 M K2CrO4 0.1 m Pb(NO3)2 Burets 150-mL beaker 5% nitric acid hot plate stirring rod filter paper Wash bottle funnel Procedures: * 12.00 mL of 0.100M K2CrO4 solution is dispensed into a clean, dry, small beaker. * 11.50 (the assigned volume) of 0.100M Pb(NO3)2 solution is dispensed from a second buret into a second clean, dry, small beaker. * 12.00 mL of the K2CRO4 solution was slowly poured into the beaker containing the Pb(NO3)2Vsolution while stirring the Pb(NO3)2 solution.