Suppose 2.3 cm3 of medication are drawn from a vial of hydrocortisone that contains 69 mg of medication. How many milligrams of medication per cubic centimetre are in the vial?

Q: To measure 345 µl of water, set the P1000 micropipette to of 0-3-4 and 5 lines To measure 3.5 µl of…

A: •Micropipette:- Micropipette are those instruments in laboratories which are accurately and…

Q: A sample of an alkali metal that has a b.c.c. unit cell is found to have a mass of 1.000 g and a…

A: Answer: Alkali metal are present in the 1st group of periodic table and among all the metals they…

Q: 26 Write equations for the reaction of 1-butanol, a primary alcohol, with these reagents. (a) H₂SO,…

A: We know, H2SO4,heat is a dehydrating agent, it will convert alcohol to an alkene. Since in the…

Q: An 18 carat white gold is made by dissolving 12.0364 g of Copper, 13.8346 g of Silver, and 61.0516 g…

A: To find the percent composition by volume of copper in the 18 carat white gold alloy, we need to…

Q: Sca MeO₂C. CO₂Me CO₂Me NaH 0: MeO₂C -CO₂Me

A: Given that, a reaction scheme is shown below We have to give the mechanism of the above reaction.…

Q: Two 20.0 g ice cubes at -17.00C are placed into 470.1 g of water at 25.0 0C. The heat of fusion of…

A: According to the question, Mass of one ice cube = 20.0 g  Mass of water = 470.1 g The heat of fusion…

Q: In Chapter 20, we will explore how nitriles can be converted into carboxylic acids. How would you…

A:

Q: A low dose of aspirin is often recommended for patients who are at risk for coronary artery disease.…

A:

Q: A 0.125 g sample of an unknown liquid is vaporized and the vapor is stored in a 35.2 mL container at…

A:

Q: Practice Questions for Percent Solutions then fill in your answers in the table. a. To make a 10mL…

A: According to the question, The mass of the NaCl is to be calculated for the given percentage of the…

Q: A solution is made containing 14.7 g of CH3OH in 185 g H2O. Calculate the Mole fraction of CH3OH.…

A: The mole fraction of a component in the mixture is defined by the ratio of moles of that substance…

Q: HC=CCH₂CH₂CH₂CH3 H₂0, H* OH H₂C=CCH₂CH₂CH₂CH3 =CCH₂CH₂CH =ondon CH3CCH₂CH₂CH₂CH3 2-Hexanone

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: the H+ and OH are incorrect.Can you please correct?

A: H+ and OH- ion concentration can be calculated from the given pH value by using the relation of pH…

Q: 2) For the reaction shown below, the data depicted in the given chart were obtained. For each…

A: Solutions- From the given graph we observed the observation given below.

Q: 36 Write the common name for each of the following ethers. (a) (b)

A: We have been given three organic compounds and we have been asked to write their common names.…

Q: 80°F Mostly sunny Stoichiometry can be used to determine the mass (in grams) of a product. O True O…

A: We have been given a statement that stoichiometry can be used to determine mass of products.Products…

Q: :O:

A: While drawing resonating structures only position of electrons is changed while position of atoms…

Q: which of the following formulas - NO, N2O, NO2, N2O4,  and N2O5 - represent the empirical formula…

A: The empirical formula is the simplest whole number ratio of atoms in a compound, while the molecular…

Q: Question No.4: A. How pH of a solution can be measured. B. Calculate the pH of 0.1 M NH, solution.…

A: 0.1 M NH3 solution PH  Kb = 1.8 × 10-5

Q: Determine the pH of an aqueous solution of phosphoric acid at 0.1 mol.L-¹. The pH of the solution is…

A: Given, Phosphoric acid is tricrotic acid and it gets dissociated to give 3 H+ ions. Thus, it has…

Q: Question 1 An Olympic-sized pool is 45.3367m long, 24.889m wide, and 1.6347m deep. How many moles of…

A:

Q: Provide the correct common name for the compound shown here. NO₂ 0 CO₂H

A:

Q: An 18 carat white gold is made by dissolving 10.1397 g of Copper, 11.5554 g of Silver, and 63.1694 g…

A: The percent composition of palladium in the metal alloy is the mass of palladium present in the 100…

Q: C₂N₂H8 (g) + 2 N₂O4(g) 60 g/mol 92 g/mol 92.0 g 32.0 g > 2 CO₂(g) + 4H₂O(g) + 3 N₂(g) 44 g/mol 18…

A: To get the amount of products from the given balanced reaction, 1st we need to find out the limiting…

Q: Question 12 Potassium ferrocyanide (K4Fe(CN)6) is used in the tempering of steel and in process…

A:

Q: Draw the major addition product for this reaction. Do not include any byproducts formed. HBr (1…

A: In addition reaction pie bond is break and new species is added and form sigma bond .

Q: What quantity in moles of silver atoms do you have if you have 3.94 * 1021 atoms of silver. (The…

A: The given question is related to stoichiometry. In the given question, it has been asked to…

Q: Identify the reagents a-b in the following scheme:

A: Identify the reagent in the following reaction scheme

Q: Draw the chair flip of the following molecule. DO NOT rotate the molecule in anyway. Me After the…

A: Answer: In this question we have perform the ring flip on given chair conformation and relocate the…

Q: Draw an equivalent resonance structure that minimizes charge. Include all lone pairs in your…

A:

Q: Common household products, such as spray adhesives, contact cement, arts and craft paints, and stain…

A: The number of moles of solute present in one kilogram of solvent is known as the molality of the…

Q: ← Mon Jan 30 Draw the product of the reaction shown below. Use a dash or wedge bond to indicate…

A: We know [3,3] proceeds via 6 membered transition state with methyl at equatorial position .

Q: ОНС CH3 OCH3 -CH3 Н. O Р-оме OMe N₂ KOtBu, THF Н CH3 OCH3 92% CH3

A: This is an example of Seyferth-Gilbert homologation reaction

Q: A pure solid sample of Substance X' is put into an evacuated flask. The flask is heated at a steady…

A: Graph given indicate that phase diagram of compound X. In this diagram solid is melt to liquid and…

Q: The potential in Debye-Hückel theory is proportional to (a) 1/kr (b) exp[-kr] (c) exp[-kr]/r (d) kr

A: Debye-Hückel Limiting Law is a thermodynamic equation used to describe the ionic activity…

Q: Question 6 Ethyl acetate is used as a solvent for varnishes, lacquers, dry cleaning, stains, fats…

A:

Q: how do you enter this into a calculator to get 5.8

A:

Q: (p) heterochain polymer (q) homochain polymer (r) homopolymer (s) hyperbranched polymer (t) ladder…

A: A polymer is a large molecule composed of repeating units called monomers. The monomers are bonded…

Q: For the following organic reactions, draw the structures of all reactants and products. a)…

A: Organic reactions are chemical reactions involving organic compounds. These reactions typically…

Q: When a sample of the aqueous layer with a volume of 12.25 mL is collected, it requires 18.87 mL of a…

A: Given -->  Volume = 18.87 mL Molarity = 0.01617 M  Mole ratio = 2:1

Q: Provide a name or a structure for each of the following compounds include stereochemistry as…

A: see below

Q: Atom/ion/Molecule Number of protons Number of electrons CaO molecule ? ?

A: An atom has mainly three sub atomic particles- protons, electrons and neutrons. Protons and neutrons…

Q: Calculate the ph of a solution prepared by dissolving 1.75g of sodium acetate, CH3COONa, in 78.0 mL…

A: We have to first calculate the moles of sodium acetate and acetic acid. and we have to use…

Q: Consider the reaction Ca(OH)2 (aq) + 2HCl(aq) → CaCl₂ (8) + 2H₂O(l) for which AH-30.20 kJ and AS…

A:

Q: All of the following acid-base reactions are reactions that we will study in greater detail in the…

A:

Q: Draw the conformer that would form after the back carbon of this conformer is rotated 120° rotation…

A: Conformational isomers are stereoisomers which are interconvertible through rotation across single…

Q: 47. The Daniel cell is (a) Pt₁ (s)| Zn(s)| Zn²+ (aq) || Cu²+ (aq) | Cu(s)|Pt₁ (s) (b) Pt₁ (s)| Zn…

A: Daniel cell consists of two half cells. The half cell on the left contains a zinc metal electrode…

Q: A gallon of water has a weight of 8.34 pounds. How many kilograms is this?

A: Give data are A gallon of water has a weight of 8.34 pounds. We have to find how many kilograms of…

Q: Name each of the following organic molecules: A F K OH OH B s L SH TY U H M :O: D HO Br Br cl N E

A: Given some organic molecules. We have to write their name. Now,

Q: How many joules of energy are needed to change 135 g of water at 17.9°C to steam at 100°C?

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.