CHEMISTRY COLLEGE

An order is given to administer methylprednisolone, an anti-inflammatory drug, by IV at a rate of 36 mg every 30. min . The IV bag contains 125 mg of methylprednisolone in every 2.0 mL . What should the flow rate be in milliliters per minute (mL/min)?

Answers

Answer 1

Answer:

Answer:

0.0192 mL per min.

Explanation:

IV rate = 36 mg per 30 min.

IV concentration = 125 mg per 2.0 mL

36 mg per 30 min. IV rate = 36/30 = 1.2 mg per min

If 125 mg methylprednisolone is present in 2.0 mL of the IV nag, how many mL would contain 1.2 mg?

= 2x1.2/125

= 0.0192 mL

Therefore, the flow rate of the IV must be 0.0192 mL per min. in order to be able to deliver 36 mg per 30 min.

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Given these reactions, X ( s ) + 1 2 O 2 ( g ) ⟶ XO ( s ) Δ H = − 668.5 k J / m o l XCO 3 ( s ) ⟶ XO ( s ) + CO 2 ( g ) Δ H = + 384.3 k J / m o l what is Δ H for this reaction? X ( s ) + 1 2 O 2 ( g ) + CO 2 ( g ) ⟶ XCO 3 ( s )

Answers

Answer: The $\Delta H^o_(rxn)$ for the reaction is -1052.8 kJ.

Explanation:

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The given chemical reaction follows:

$X(s)+(1)/(2)O_2(g)+CO_2(g)\rightarrow XCO_3(s)$ $\Delta H^o_(rxn)=?$

The intermediate balanced chemical reaction are:

(1) $X(s)+(1)/(2)O_2(g)\rightarrow XO(s)$ $\Delta H_1=-668.5kJ$

(2) $XCO_3(s)\rightarrow XO(s)+CO_2$ $\Delta H_2=+384.3kJ$

The expression for enthalpy of the reaction follows:

$\Delta H^o_(rxn)=[1* \Delta H_1]+[1* (-\Delta H_2)]$

Putting values in above equation, we get:

$\Delta H^o_(rxn)=[(1* (-668.5))+(1* (-384.3))=-1052.8kJ$

Hence, the $\Delta H^o_(rxn)$ for the reaction is -1052.8 kJ.

Chem help due in 2 hours. please help. problem 14.

Answers

14 )

a) 1 HBr + 1 NaHCO₃ = 1 CO₂ + 1 H₂O + 1 NaBr

b) 2 HNO₃ + 1 K₂SO₃ = 1 H₂O + 2 KNO₃ + 1 SO₂

c) 2 HI + 1 Na₂S = 1 H₂S + 2 NaI

d) 1 (NH₄)₂SO₄ + 1 Ca(OH)₂ = 1 CaSO₄ + 2 H₂O + 2 NH₃

Explain the arrangement of the first 20 elements in the periodic table. Please help! Will give brainliest!

Answers

There are various kind of elements that are present in periodic table. Elements that are metals are kept on left side of periodic table and elements which are non metals are kept on right side of periodic table.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals and metalloids element arranges in increasing atomic number.

The first 20 elements of periodic table are Hydrogen, Helium, Lithium, Beryllium, Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Sodium, Magnesium, Aluminum, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Potassium and Calcium. Out of these Lithium, Beryllium, Sodium, Magnesium. Potassium and Calcium are metals so they are kept on the left side of the periodic table while others are non metals so they are kept on right side of periodic table.

Learn more about periodic table, here:

brainly.com/question/11155928

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Elements are arranged from left to right and top to bottom in order of increasing atomic number.

A(n) _______________ can be formed by linking together several monosaccharides via glycosidic bonds.

Answers

Answer:

A polysaccharide (n) can be formed by linking several monosaccharides through glycosidic linkages.

Explanation:

Polysaccharides are carbohydrates or complex carbohydrates, where monosaccharides join with glucosidic bonds to form a more complex structure that would be the polysaccharide.

An example of a polysaccharide is starch, or glycogen.

Starch is found in many foods such as potatoes or rice, and glycogen is a form of energy reserve of our organism housed in muscles and liver to fulfill locomotion, physical activity, and other activities that consist of glycolysis.

Polysaccharides are degraded in our body by different stages, and several enzymes unlike monosoccharides or disaccharides, since they have more unions and a more complex structure to disarm in our body and thus assimilate it.

Polysaccharides are also part of animal structures, such as insect shells or nutritional sources, among others.

Lewisite (2-chloroethenyldichloroarsine) was once manufactured as a chemical weapon, acting as a lung irritant and a blistering agent. During World War II, British biochemists developed an antidote which came to be known as British anti-Lewisite (BAL) (2,3-disulfanylpropan-1-ol). Today, BAL is used medically to treat toxic metal poisoning. Complete the reaction between Lewisite and BAL by giving the structure of the organic product and indicating the coefficient for the number of moles of HCl produced in the reaction.

Answers

Answer:

2 HCl

Explanation:

Please kindly check attachment for the step by step solution of the given problem.

Use the weather map to answer the question.Weather map with blue line with triangles pointing down and to the right. Red line with semi-circles pointing up and to the right. Red line is to the right of the blue line.
© Dorling Kindersley / Universal Images Group / Image Quest 2016

What does the red line indicate?

A. A cold front is moving to the north and east.
B. A cold front is moving to the south and west.
C. A warm front is moving to the north and east.
D. A warm front is moving to the south and west.

Answers

I think the answers to this is d

Answer: It's D. A warm front is moving to the south and west.

Explanation: I got it right on the test

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