which of the given statements is an important safety precaution that should be heeded when using a mel‑temp melting point apparatus?Always wear eye protection when operating a Mel‑Temp melting point apparatus to prevent any splashes from hot liquids.

Answers

Answer 1

When using a Mel-Temp melting point instrument, always use eye protection to avoid hot liquid spills.

The most effective approach to quickly determine an approximative melting point for compounds whose melting point is unknown is with the Mel-Temp instrument. Using a temperature rise of 7–10 oC/min, one can roughly determine the melting point of a substance.

1 Ensure that a thermometer is placed inside the Mel-Temp. Otherwise, insert the bulb end of a thermometer with a minimum higher temperature of 250 oC into the hole.

2. Use the on/off switch to turn on the device.

3. Place the melting point capillary tube into the holder.

4. Adjust the voltage control knob to produce a temperature rise of around 7 to 10 oC/min.

5. Use the observation window to see the sample's estimated melting range. Increase the rate of temperature rise by turning the voltage control knob to a higher setting if it slows to less than 5 o C/min.

6. To avoid any splashes from hot liquids, always use eye protection when operating a MelTemp melting point equipment.

Learn more about Mel-Temp melting from here:

https://brainly.com/question/14483408

#SPJ4


Related Questions

a nurse cares for a client with aplastic anemia. which laboratory results will the nurse expect to find with this client? select all that apply.

Answers

Hemoglobin 7 g/dL, Neutrophil count 12,000/microliter, Platelets 35,000 microliters. These are the laboratory results for aplastic anemia.

Aplastic anemia is a condition that occurs when the body can't make enough new blood cells. This condition leaves you exhausted and prone to infections and uncontrolled bleeding. Aplastic anemia is caused by damage to the stem cells of bone marrow, the spongy tissue of bone. Many diseases and conditions can damage bone marrow stem cells. As a result, the bone marrow makes fewer red blood cells, white blood cells, and platelets. Bone marrow transplantation is the only treatment for aplastic anemia. If you have to wait for a matching bone marrow donor, you can take immunosuppressive drugs such as anti-thymocyte globulin (ATG), cyclosporine, tacrolimus, and the thrombopoietin receptor agonist eltrombopag.

Learn more about aplastic anemia in

https://brainly.com/question/28045205

#SPJ4

a consistent set of symptoms that appears after discontinuing use of a drug is known as a(n) blank .multiple choice question.impulserehabilitation protocolantecedentwithdrawal syndrome

Answers

Withdrawal pattern is a set of symptoms that can  do when an individual stops using a  medicine that they've come dependent on so option D is correct.

These symptoms which can vary from mild to severe and can include a range of physical and cerebral symptoms  all the similar as anxiety, agitation,  wakefulness, nausea and vomiting, headaches, and muscle  pangs. In some cases, the  pullout pattern and also can be life- hanging , so it's important for  individualities to seek medical  backing if they're  passing any all of these symptoms. In order to manage  pullout pattern,  individualities may be  some specified  specifics and/ or appertained to a  recuperation program. also Withdrawal pattern is the complex process, and it's important for  individualities to be covered  nearly by a healthcare professional to  insure that they're  entering the stylish care.

To know more about Withdrawal pattern visit:

https://brainly.com/question/29304523?referrer=searchResults

#SPJ4

what is the best patient body position for peak flow measurement?

Answers

The best patient body position for peak flow measurement is standing up facing forward.

Peak expiratory flow should be measured with the patient standing up straight,  facing forward, with their arms at their sides and their feet shoulder-width apart when having their peak flow measured. The patient should inhale deeply before exhaling as forcefully and quickly as they can into the peak flow meter. The patient's lung function can be measured with the greatest degree of accuracy by standing and facing forward since doing so allows the lungs to fully expand and takes gravity out of the equation.

Peak expiratory flow rate (PEFR), a reliable indicator of both sufficient ventilation and airflow restriction, is the volume of air that is forcibly expelled from the lungs in a single, rapid exhale. Normal peak flow values vary from person to person and are influenced by factors like sex, age, and height.

Peak expiratory flow (PEF) is measured in litres per minute. Adults typically have peak flow numbers between 400 and 700 liters per minute, but older women can have lower values that are nevertheless considered acceptable.

know more about lungs here

brainly.com/question/13210870#

#SPJ4

Other Questions
Paleota Company purchased a patent from Finise for $234,000. At the time of purchase, the patent had a remaining useful life of $23,000 Calculator $9,800 $23,400 $14,000 (a) A fundamental law of motion states that the acceleration of an object is directly proportional to the resultant force exerted on the object and inversely proportional to its mass. If the proportionality constant is defined to have no dimensions, determine the dimensions of force. (Use the following as necessary: M, L, and T.)[force] = (b) The newton is the SI unit of force. According to the results for (a), how can you express a force having units of newtons using the fundamental units of mass, length, and time? (Use the following units as necessary: kg, m, and s.) Carol Gilligan's criticism of Lawrence Kohlberg's developmental theory is based on the argument that Kohlberg's ________. Use your notes to identify the changes brought about by the new U.S. political system. oxides of active metals, such as cao, react with water to form____ a market in which households sell land, labor, and capital to firms is ? what are the characteristics feature of IOT? the range (in miles) of a broadcast signal from a radio tower is bounded by a circle given by the equation A college library has four copies of a certain book; the copies are numbered 1, 2, 3, and 4. Two of these are selected at random. The first selected book is placed on 2- hour reserve, and the second book can be checked out overnight. a. Construct a tree diagram to display the 12 outcomes in the sample space. b. Let A denote the event that at least one of the books selected is an even-numbered copy. What outcomes are in A? c. Suppose that copies 1 and 2 are first printings, whereas copies 3 and 4 are second printings. Let B denote the event that exactly one of the copies selected is a first printing. What outcomes are contained in B? during the 1790s, what occurred as a result of the disagreements between thomas jefferson and alexander hamilton? PLEASE HELP ME Actividad 1The following sentences have been rewritten so that the direct object has been changed to its pronoun,but they are missing the indirect object pronouns. Fill in the blanks with the correct indirect objectpronoun for each sentence. Remember that le and les change to se when they come before lo, la, los or las!los doy.1. Yo doy los libros a ti. -> Yo2. Yo doy los libros a Amelia. -> Yo3. T lees el peridico a nosotros. -> T4. T lees el peridico a Juan. -> Tlo lees.5. Paco cocina la cena para Eva y Esteban. -> Paco6. Paco cocina la cena para m. -> Pacola cocina.7. Nosotros compramos la camisa para Estela. -> Nosotros8. Nosotros compramos las camisas para Diego y Carlos.-> Nosotros9. Ellos dicen el cuento a m. -> Elloslo dicen.los doy.10. Ellos dicen el cuento a Jos. -> Ellos11. Yo escribo las palabras para ustedes. -> Yo12. Yo escribo las palabras para ti. -> Yolo lees.lo dicen.la cocina.las escribo.las escribo.la compramos.las compramos. What is the difference between gross income net income and discretionary income?. In the following stanza, what is Gray suggesting about the individuals buried in the churchyard?Perhaps in this neglected spot is laid Some heart once pregnant with celestial fire;Hands, that the rod of empire might have swayd, Or wakd to ecstasy the living lyre. (1 Point)*The individuals will no longer experience love or life.The individuals buried here were royalty.The individuals buried here may have had great potential never realized.The individuals buried here were highly influential in their communities. a general contractor advertised in a trade publication that she planned to bid on the construction of a new building. the advertisement welcomed bids from subcontractors to perform various functions, such as plumbing, electrical work, and masonry. the lowest plumbing bid she received was from a plumber for $10,000. the general contractor used that bid in preparing her bid and submitted the bid to the client. shortly thereafter, the plumber called her and explained that there was a mistake in his bid and he could not perform the work for less than $12,000. the general contractor was awarded the contract and told the plumber she was accepting his $10,000 bid, but the plumber reiterated that he would not do the work for less than $12,000. the general contractor hired a different company to do the plumbing work on When Arman and Roger discuss what issues in their relationship are acceptable to discuss in front of friends and which are acceptable only to discuss between themselves, they are engaging in __________. 1. Find sentences in which the speaker uses ethical appeals by describing himself favorablyand claiming to possess virtues that considering the nature of his proposal - he couldnot possibly have.]2. Find places in the proposal where the speaker uses logical appeals to support hissuggestions. before the 1700s, what did alchemists believe they could do with matter? What sonnets did Shakespeare write?. What can we learn about ancient the Egyptian world from the GreatPyramid at Giza?O D) The Egyptians relied heavily on slave powerOB) the power of the Egyptian godsA) The power of the PharoahO C) the chaos of life in Egyptian society A patient receiving a nebulizer treatment should be in a ________ position.