the blacked out area had a point total for the question, but the question is not graded that is why I blacked it out. Hope thats ok, I need help please.

Q: What is the mass percent of NaCl when 5.00 g of NaCl is dissolved in 95.0g of water?

A: Mass percent is one of the methods to express the concentration of a solution . It is calculated by…

Q: What is the molarity of the caffeine solution B? Molecular Weight of Caffeine 1942 grmol A Take 20…

A: Given, Note: 1000 mL = 1 L Solution A Molarity of the solution A = 5 × 10-4 M = 5 × 10-4 mol/L…

Q: Ammonia and oven cleaner are both bases. Their [H+] values are 1.3 x 10 11 (a) Find the pH for…

A: pH is defined as negative logarithm of hydrogen ion concentration pH=-log[H+] Substance that has pH…

Q: The concentration of the hydronium ion in an aqueous solution at 25 °C is 0.0069 M. What is the…

A:

Q: For the reaction 2 SO2 (g) + O2(g) ⇒ 2 SO3 (9) in a sealed glass vessel with temperature held…

A:

Q: 3Cu() Fe)-30) Fe(0-162 005 KJ Ⓒ052000 V O 056000 V O 0 56000 V O-052000 V

A:

Q: A few different types of electromagnetic radiation are listed in the table below. Complete the table…

A:

Q: Write the balanced equation for the following situation. List the reaction type. Tell the amounts of…

A:

Q: N2 produced from the decomposition of NaN3 is used to inflate air bags.  The decompostion of NaN3 is…

A: In this problem firstly we will find the moles of NaN3. Then we will calculate the moles produced of…

Q: In an aqueous solution at 25°C, if [H₃O⁺] = 5.3 × 10⁻⁴ M, then [OH⁻] is:

A: Given [H3O+] = 5.3*10^-4 M  Kw = [ H3O+][OH-]

Q: Which of the following is not an Arrhenius base? O Sr(OH)2 О КОН O Ba(OH) 2 all are Arrhenius bases…

A: According to Arrhenius concept Bases are those species which give OH- ion when they dissolved in…

Q: Calculate the pH of a buffer solution which contains the weak monoprotic acid, propanoic acid…

A: Please find the attachment.

Q: Draw the major product of this reaction. Ignore inorganic byproducts. H3O+ Drawing

A:

Q: At 564.5 °C, the Kp for the reaction: 1A + 2B 5AB is 5.13.10³ What is Keq? Enter your answer in…

A:

Q: Oiron-59 O phosphorus-32 Othallium-201 O iodine-131 Ofluorine-18 Submit Request Answer

A: Answer is iron-59  Radiotracer Fe-59 is used to study problems with spleen.

Q: a) Draw a schematic of a generic fuel cell and label the various parts. b) List two ways of…

A:

Q: Ethanol Sample orange/grayish Isopropyl alcohol (2-propanol) orange mayish 1-pentanol gray no Ohange…

A: (4) The Jones test utilizes chromium trioxide in the presence of sulfuric acid to act as a powerful…

Q: Predict the product of the following sequence: A B A B C C Me D D NET₂ Me Me 1. LDA, THF; Mel 2.…

A:

Q: What is the entropy change for the reaction below, if the standard entropies of reactants and…

A:

Q: If the absorbance of one of the buffer solutions (pH = 4.604) was 0.314 and the absorbance of the…

A:

Q: What is the Density of Cl2 is represented by 18.8L at 2.68atm 23.9°C   Express your answer to  2…

A:

Q: 3. Write a balanced equation for the hydrolysis of each anion. a. CI¹ b. C₂H₂O₂ CO,¹ C.

A:

Q: 2. N₂(g) + 3 H₂ (g) → 2 NH3 (g) (This is LIMITING REACTANT: N2 is the Limiting Reactant) Grams of…

A: A single displacement reaction is a chemical reaction in which one element is replaced by another in…

Q: Calculate AG for the following reaction at 25 °C: rxn 2C₂H₂(g) + 50₂(g) → 4CO₂(g) + 2H₂O (1) 1 Round…

A: This question is from Thermodynamics where we are required to find the standard Gibbs Free energy of…

Q: السلم Br HO 1. NaBH4 (0.25 eq.), H₂O 2. 1. 1. MgBr (1 eq.), CH3CH₂OCH₂CH3 MgBr (xs), Et₂O 2. DCI,…

A: Grignard reagent (RMgX) is used to make C-C bond in organic synthesis

Q: In the laboratory you are given the task of separating Ca2+ and Zn2+ ions in aqueous solution. For…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: Acetaminophen is the chemical name for Tylenol. It has a molecular formula of C8H9NO2. Find the…

A: Firstly we need to find individual component weight and then the percentage. It is given below in…

Q: CaCl2(aq) + Li2SO4(aq) -> 2LiCl(aq) + CaSO4(s) Multiple Choice O single-displacement…

A:

Q: . Which of these three carbon atoms (to the right) has an incomplete octet? b. How many more…

A: To complete the octate, the carbon atom needs it electrons around itself.  There are three types of…

Q: How much phosphorus - 32 remains from a 5.00 g comple after each of the following number of half- @…

A: Given, Initial amount of the sample = 5.00 g How much amount remain after each of the following…

Q: Calculate the [OH−] and the pH of a solution with an [H+]=6.3×10−10 M at 25 °C. [OH−]=     M pH=…

A:

Q: Ph NH CH3 H-OH Ph N=NH H CH3 OH

A:

Q: Dinitrogen tetroxide partially decomposes according to the following equilibrium: N2O4(g)  ⇌  2…

A:

Q: What is the Temperature of  0.043moles of gas in a 472.3mL vessel at 760torr?

A:

Q: D. Chirality 6. Build two models of 2-butanol, a chiral molecule. Are the mirror images of your two…

A:

Q: How many  liters of NH3 that can be produced from 9.912 L of H2 at a constant temperature and…

A:

Q: + N₂ + H₂O CH3 Ph CH3 The Wolff-Kishner reaction involves the reaction of an aldehyde/ketone with…

A:

Q: Draw the starting structure that would lead to this major product under these conditions. Select to…

A:

Q: Lithium carbonate and iron(III) chloride will undergo a double replacement reaction, producing…

A: A double displacement reaction is a type of chemical reaction in which two moleculs react and their…

Q: The AP Biology teacher is measuring out 647.0 g of dextrose (C6H12O6) for a lab. How many moles of…

A:

Q: Consider the reaction below. Which species are conjugate acid/base pairs? HSO3(aq) + HCN (aq) =…

A: Since, Acid-Base pairs are differ by only H+. Thus,

Q: Write the balanced equation for the following situation. List the reaction type. Tell the amounts of…

A:

Q: Condensed Structural Formula (Circle Functional Group) CH3-CH2-NH2 H₂C-CC-CH3 CH3-SH 3=0 HC-C-NH-CH3…

A: The answer to the following question is-

Q: 5. Draw the perspective structure of 1,3-dibromobutane and label any asymmetric carbon atoms with a…

A:

Q: Observations on the esterification reaction of each carboxylic acid test sample. Sample…

A:

Q: Activity 3 Here is another Type 2 problem.  The bullet points “walk you through” how to do it.  ­­…

A:

Q: How many milliliters of water should be added to 3.3 mL of 18.2 MH 2SO4 in order to prepare 0.10 M…

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

Q: Analytical wavelength Analytical wavelength for red dye (nm) Calibration curve Solution 1 2 3 4 5…

A:

Q: A chemistry graduate student is studying the rate of this reaction: 2NH3(g) → N₂(g) + 3H₂(g) She…

A:

Q: 1. How many carbons are in the simplest alkyne? a. C. e. a. b. C. d. e. 1 135 a. C. 5 b. d. 2. Which…

A: Types of hydrocarbons Alkanes (-C-C-): alkanes are the hydrocarbons in which single bond (1σ bond)…

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.