Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.
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Question: peroxide in a freezer reserved for laboratory chemicals only. Manganese dioxide is a strong oxidant, avoid contact with organic material. Inhalation can lead to increased incidence of respiratory infection and effects on the central nervous system. It is assumed to be harmful if swallowed. Avoid dust. Wash hands well after handling. How much oxygen gas in grams can be prepared from 58.8g of potassium chlorate? Pure oxygen gas can be prepared in the laboratory by the decomposition of solid potassium chlorate to form solid potassium chloride and oxygen gas. How much oxygen gas in grams can be prepared from 58.8g of potassium chlorate? Give a clear explanation of your answer to get chosen as best. Follow. Oxygen in a gas jar will rekindle a glowing splint Name 3 physical properties of Oxygen Colourless Odourless and Tasteless, Slightly soluble in water, Slightly heavier than air gas, with a density greater than that of air, and a very low solubility in water. properties greatly facilitate the collection of oxygen in this lab. combustion. In this lab, oxygen will be generated as a product of the decomposition of hydrogen peroxide. A catalyst is used to speed up the rate of the decomposition reaction, which would otherwise be too slow to use as We don't won't to put the stopper on the flask just yet. There is about 25 mL of air (80% nitrogen & 20% oxygen) in the flask. The bubbles of oxygen that are forming will displace the air by pushing it out of the flask. Oxygen is a little more dense than air, so oxygen will stay closer to the surface of the water and push the air out of the flask. Wait about 2 minutes before placing the stopper onto the flask. That will give the newly created oxygen to push the most of the air out of the flask. (Iron, for instance, would oxidize, and thus decrease the amount of oxygen given off.) The theoretical maximum efficiency (electricity used vs. energetic value of hydrogen produced) is between 8094%. 2H2O(aq)-- 2H2(g) + O2(g) Prepared in the laboratory by: methane. CH 4. Heating a compound called sodium ethanoate with another compound soda-lime (sodium hydroxide). The methane gas is collected over water. oxygen. O 2. Adding hydrogen peroxide solution to manganese IV oxide powder. The oxygen gas is collected over water. carbon dioxide. CO 2 How do we prepare oxygen in the lab? By decomposing hydrogen peroxide using manganese dioxide as a catalyst What is the word equation for the laboratory preparation of Oxygen? With the help of a diagram explain how oxygen gas is prepared in the laboratory. Set up the apparatus as shown. Add 10 volume hydrogen peroxide slowly via the funnel. Oxygen will pass through the delivery tube. Oxygen is collected by downward displacement of water in the gas jar. With the help of a diagram explain how hydrogen gas is prepared in the laboratory. Set up the apparatus as shown. Add dilute sulphuric or hydrochloric acid slowly via the funnel. Preparation of Gases in Laboratory Aims: To prepare oxygen, hydrogen and carbon dioxide gas in laboratory. Problems : 1. How to prepare oxygen gas in laboratory? 2. How to prepare carbon dioxide gas in laboratory? 3. How to prepare hydrogen gas in laboratory? Hypothesis: 1. Oxygen gas can be prepared in laboratory by using manganese dioxide (MnO2) and hydrogen peroxide (H2O2). 2. Carbon dioxide gas can be prepared in laboratory by using marble chips (CaCO3) and dilute hydrochloric acid (HCl). 3. Hydrogen gas can be prepared in laboratory by using zinc metal and diluted hydrochloric acid (HCl). Variables: Query: how is oxygen prepared in the laboratory?

Answer: Pure oxygen gas can be prepared in the laboratory by the decomposition of solid potassium chlorate to form solid potassium chloride and oxygen gas.


Question: How Long Can Dilaudid (Hydromorphone) Stays in Your System Dilaudid (hydromorphone) is screened for in urine drug screens. If you have been prescribed Dilaudid but need to take a urine drug test for employment or other purposes, tell the testing lab that you are taking this prescription so they will be able to interpret the test appropriately. Some of the symptoms of a Dilaudid overdose include: 1  Difficulty breathing. 2  Slowed or stopped breathing. 3  Excessive sleepiness. 4  Dizziness. 5  Fainting. 6  Limp or weak muscles. 7  Narrowing or widening of the pupils. 8  Cold, clammy skin. 9  Slow or stopped heartbeat. 10  Blue color of skin, fingernails, lips. 11  Loss of consciousness or coma. It also depends on your weight and height, and, like I mentioned before, how fast your metabolism is. So, all and all, it can take anywhere from 5 to 11 days from your last Dilaudud dose for it to completely leave your system. Other factors that can affect how long hydromorphone can be detected is the length of time someone has been taking the medication, how frequently, and the strength of the dosage. The following is an estimated range of times, or detection windows, during which hydromorphone can be detected by various testing methods: OHS Health & Safety Services. How long do drugs stay in your system?. National Institue on Drug Abuse. Hydromorphone. Drugs, Herbs and Supplements August 2014 Knowing how long Dilaudid remains in your system may be helpful in avoiding an overdose of the medication by taking too much, too soon. Other brand names for Dilaudid include Hydrostat and Palladone. How Long Dilaudid Affects Your System. When hydromorphone is taken orally, it reaches its peak effect in 30 minutes to an hour. 1  The elimination half-life of oral hydromorphone is about 4 hours. 2  Removing it from your system can cause a severe reaction. 3  The drug is still being eliminated through the urine over the course of 2 to 3 days. How long does dilaudid stay in your system?... Hello, Depending on how long were you taking Dilaudid and in which dosage, it can take up to 11 days for it to get out of your system. Or in case you're asking because you need to have drug test for opiates... View All. How long hydromorphone is detectable in the body depends on several variables, including which kind drug test is being used. Hydromorphone - also known as Dilaudid, Hydrostat, Palladone, Dillies, hospital heroin, hydro - can be detected for a shorter time with some tests, but can be visible for up to three months in other tests. How long hydromorphone is detectable in the body depends on several variables, including which kind drug test is being used. Hydromorphone — also known as Dilaudid, Hydrostat, Palladone, Dillies, hospital heroin, hydro — can be detected for a shorter time with some tests, but can be visible for up to three months in other tests. Depending on how long were you taking Dilaudid and in which dosage, it can take up to 11 days for it to get out of your system. Or in case you're asking because you need to have drug test for opiates, you also need to take into account that you still might test positive for opioids if you were taking Dilaudid for a longer period of time and even in normal dosages if your metabolism is slow. Query: how long is dilaudid in your system

Answer: Depending on how long were you taking Dilaudid and in which dosage, it can stay up to 11 days in your system.


Question: A more pronounced tide, when high tides are very high and low tides are very low, is called a “spring tide.” These periods occur during the New Moon, when the Sun and Moon are lined up on the same side of the Earth, and the Full Moon, when the Moon and Sun are on opposite sides of the Earth. Together, the gravitational effects of the moon and the sun affect the Earth’s tides on a monthly basis. Click the image to see an animation. The moon is a major influence on the Earth’s tides, but the sun also generates considerable tidal forces. Solar tides are about half as large as lunar tides and are expressed as a variation of lunar tidal patterns, not as a separate set of tides. The Earth experiences two high tides per day because of the difference in the Moon's gravitational field at the Earth's surface and at its center. You could say that there is a high tide on the side nearest the Moon because the Moon pulls the water away from the Earth, and a high tide on the opposite side because the Moon pulls the Earth away from the water on the far side. The moon is the dominate tidal influence. The moon's tidal influence is about twice that of the sun. Remember, tides are due to a non-uniform gravitational field, squishing and squashing on a body in free motion within the gravitational field. The height of the tides is also affected by the position of the Moon in its orbit around the Earth. The Moon travels around the Earth once every 28 days. Depending on where it is on its journey, the difference between high and low tide may be more or less pronounced. Sun's Tidal Effect. Even though the Sun is 391 times as far away from the Earth as the Moon, its force on the Earth is about 175 times as large. Yet its tidal effect is smaller than that of the Moon because tides are caused by the difference in gravity field across the Earth. The Earth's diameter is such a small fraction of the Sun-Earth distance that the gravity field changes by only a factor of 1.00017 across the Earth. The elliptial orbits of the moon around the Earth and the Earth around the sun have substantial effects on the earth’s tides. Click the image for a larger view. Just as the angles of the sun, moon and Earth affect tidal heights over the course of a lunar month, so do their distances to one another. The actual force differential across the Earth is 0.00017 x 174.5 = 0.03 times the Moon's force, compared to 0.068 difference across the Earth for the Moon's force. The actual tidal influence then is then 44% of that of the Moon. The Moon is the dominant tidal influence because the fractional difference in its force across the Earth is greater than the fractional difference seen from the Sun. This difference in force follows the inverse square law. Tides are the natural rise and fall that occurs in major bodies of water, such as the ocean or large lakes. Tides are caused by the gravitational relationship between the Moon and the Earth. The Moon’s gravity pulls on the Earth, causing the water to swell in the direction of the Moon. The exact timing and number of high tides per day varies by location, and is affected by such factors as geography, the shape of the coastline, the salinity of the water, the time of year, and the weather, among other things. Query: how does the moon influence the tides

Answer:
The elliptial orbits of the moon around the Earth and the Earth around the sun have substantial effects on the earth’s tides.


