A. Liquids are moved from one container to another using a pipette, droppers, and volumetric flasks. B. Liquids are kept in beakers, graded cylinders, and Erlenmeyer flasks. - Statement A is correct and statement B is incorrect. - Statement A is incorrect and statement B is correct. - Both statements are correct. - Both statements are incorrect.

Q: If the pressure on 54 mL of gas is changed from 715 torr to 834 torr, what is the new volume?

A: To solve this problem we will use the Boyles  law .  P1 V1 = P2V2  Where P1 is the initial pressure…

Q: TRUE or FALSE: The following structures are diastereomers. Br O True Ⓒ False J Br .

A: -> Diastereomers are defined as non- mirror image , non-identical stereoisomers.Hence, they occur…

Q: How many molecules are there in an ideal gas with a volume of 7.49 L at STP? number of molecules:

A: STP refers to standard temperature and pressure.  Here at STP, temperature is 00C pressure is 1 atm

Q: 16. Provide the major organic product(s) in the reaction below. CH3CO3H

A: When an alkene reacts with per acid they forms epoxide

Q: Calculate Eº, E, and AG for the following cell reaction: 2+ 2+ Mg(s) + Sn²+ (aq) = Mg²+ (aq) + Sn…

A: Answer: In the galvanic cell oxidation always takes place at anode and reduction always takes place…

Q: Calculate the pH of two HCl solution based on their concentrations of 0.001 and 0.0001 M. Then…

A: #Part-1: HCl is a strong monoprotic acid.  Since HCl is a strong monoprotic acid, it is completely…

Q: 2A+7B-->5C+D If you started with 0.30 moles of A, how many moles of C should you theoretically end…

A:

Q: With a calculation, explain why it is impossible to prepare an 18 M solution of ethanol in water.

A: Molar mass of Ethanol= 46 g/mol Density of ethanol = 0.789 g/ml

Q: How can you determine the charge of an atom?

A:

Q: Which of the following is most likely to represent the formula of a hydrocarbon found in gasoline?…

A: Gasoline is a mixture of volatile,  flammable liquid hydrocarbons derived from petroleum and used as…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. HO DMP (Dess-Martin…

A:

Q: What is the conjugate base of H₂CO3?

A: Given: formula of compound

Q: A solution contains 0.160 M sodium cyanide and 0.255 M hydrocyanic acid. The pH of this solution is

A:

Q: Calculate the energy required to heat 202.0mg of cyclohexane from 18.4°C to 38.8°C . Assume the…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: Consider the reaction given below and answer the succeeding questions. Express all answers in proper…

A: We will first convert the given masses of reactant to moles of the reactant. And using the balanced…

Q: Why is the group A elements (s-block and the p-block) are called the representative elements?

A: Elements in which except outermost shell all shells are completely filled with electrons are called…

Q: For the following reaction, Kc = 25 at 127°C: A2        +   B2     ⇌    2 AB What is Kc at the…

A:

Q: Suppose a mixture is made by mixing together 10 drops of a water solution of a halogen, 10 drops of…

A: Given: The solution is made by mixing, 10 drops of a water solution of a halogen 10 drops of a…

Q: Mechanism for the following Xo P+ (C6H5)3

A: In wittig reaction carbonyl compounds transformed to alkene

Q: Which will give the same alkane product as RIE when subjected to catalytic hydrogenation? CH₂ I…

A: The given problem is based on the chemical properties of alkynes and structure of alkynes.

Q: 9. Which compounds react together to form an ester? CH3CH₂OH CH3CH₂COOH II. CH3CH CHO IV.…

A: Esters :-  Organic compounds having -COOR' functional group are called esters  For example :-…

Q: Write the solubility product formula, Ksp, for these slightly soluble salt equilibria a. Cas (s)…

A: The solubility product constant, Ksp​, is the equilibrium constant when a slightly soluble salt is…

Q: Lets start with the medical components. We need to determine how many units of the syringe…

A: To determine how many units of syringe can be made out of 2205 lbs of plastic. Given formula: No. of…

Q: All of the following statements concerning voltaic cells are true EXCEPT A) a salt bridge allows…

A: Voltaic cell: The voltaic cell converts chemical energy into an electrical energy.

Q: 13. Provide the structure of the major organic product in the reaction below. H₂O, H+ CH3CH₂OH, H+

A: In the given question we have to do the following reaction,  In the first reaction we have to do the…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: Use the References to access important values if needed for this question. A solution contains 0.447…

A:

Q: The molecule XeF₂ is linear with a 180° F-Xe-F bond angle. Where are the lone pairs?

A:

Q: Find the pH of a buffer with 0.02 NaCN. The Kb of CN- is 1.7 x 10-5

A: NOTE: The solution is not a buffer solution as it has only weak base NaCN.  Given: Concentration of…

Q: A hot air balloon is filled with 1.15 x 106 L of an ideal gas on a cool morning (11 °C). The air is…

A:

Q: Between the two reactants in the given reaction, I is (nucleophile or electrophile) and II is…

A:

Q: For each of the following reactions, a. Predict the major product. b. State the type of mechanism…

A: Given : structure of reactants.  Tip : (a) E1 reaction        (b) SN2 reaction         (c) SN1…

Q: Plot a calibration graph of absorbance vs concentration of Ca2+ and determine the concentration of…

A: From Beer's Law,                                A = ∈ × c × l  Where, A : Absorbance∈ : Molar…

Q: Use the average density you calculated above and the concentration of the bleach solution to…

A: Given that, Average density = 1.08 g/mL Concentration of bleach = 6% m/m

Q: What is the pH of a solution of 0.400 M CH₃NH₂ containing 0.110 M CH₃NH₃I? (Kb of CH₃NH₂ is 4.4 ×…

A: Since you have asked multiple questions, we will answer the first question. If you want any specific…

Q: H3C 20) Write the product of the following reaction H3C- A H2 -ОН -ОН H3C PCC 3 - -H H3C ОН -OCH 3

A:

Q: 8. To identify a homonuclear diatomic gas, a chemist weighted an evacuated flask with a volume of…

A:

Q: A(g) + B(aq) C(s) ΔHrxn= -453 kJ/mol If the [B] at equilibrium is decreased then the reaction…

A: •Here given reaction is=>    A(g)+ B(aq) => C(s) •This question is based on Le Chatlier…

Q: 20. Calculate the final concentrations of the following aqueous solutions after each has been…

A: Answer-20 When the solution has been diluted, it changes the volume of the solution but moles of…

Q: What is the major product from the following reaction? • OH 1) 2) H2O2. NaOH 애 you OH you

A: The reaction of hydroboration oxidation of an alkyne is given and we have to tell the product of the…

Q: Predict the products of each reaction below. Indicate regiochemistry and stereochemistry when…

A: Given : structure of reactants.

Q: STOICHIOMETRY Mole-Mole Problems How many moles of HCT are needed to react with 0.87 moles of A

A:

Q: Provide the correct IUPAC name for the compound shown here. ليد

A: We need to name the organic compound given here. There are certain rules to name an organic compound…

Q: A flexible container at an initial volume of 5.12 L contains 7.51 mol of gas. More gas is then added…

A:

Q: What ratio of CH₃NH₂ to CH₃NH₃⁺ is needed to prepare a pH 10.20 buffer? (Kb for CH₃NH₂ is 4.4 ×…

A:

Q: Write a balanced chemical equation for the standard formation reaction of gaseous hydrogen bromide…

A: Given : HBr(g) formed

Q: [References] Use the References to access important values if needed for this question. www.exprivas…

A: pH of buffer solution is calculated by using Henderson Hesselbalch equation

Q: Calculate Eº, E, and AG for the following cell reaction: 2+ 2+ Mg(s) + Sn²+ (aq) = Mg²+ (aq) + Sn…

A:

Q: Calculate the energy required to heat 141.0mg of mercury from −1.1°C to 17.8°C . Assume the…

A:

Q: CH NH2 H₂NNH₂, OH 1. LIAIH₂ 2.H₂O B C

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

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.