Show your work for everything Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and à natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a

Q: 1. A compound X containing carbon, hydrogen and oxygen only have the following composition by mass: ...

A: Given, Compound X containing Carbon, Hydrogen and Oxygen % of Carbon (C) = 54.5 % = 54.5 g % of Hydr...

Q: Three buffers are made by combining a 1M solution of acetic acid and a 1M solution of sodium acetate...

A:

Q: 4. Write a chemical equation for the following reactions: a. The acid-catalyzed hydrolysis of propyl...

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

Q: A displacement reaction is an oxidation-reduction reaction in which a free element reacts with a com...

A:

Q: Define the following terms: j. Foundation and vanishing Cream k. Night and massage cream o. Barri...

A: The terms define below.  

Q: 1.46 g Potassium hydrogen phthalate requires 34.3 mL of 0.145M NaOH for neutralization, what percent...

A: Given : Mass of Potassium hydrogen phthalate = 1.46g  

Q: 1.7 Calculate the molar volume of chlorine gas at 350 K and 2.30 atm using (a) the perfect gas law a...

A: Given data :- Temperature (T) = 350 K Pressure (P) = 2.30 atm

Q: What is the summation of the deviation? If the best measured value is 5.25cm + 0.075cm. Complete the...

A:

Q: A certain gas is present in a 13.0 L cylinder at 4.0 atm pressure. If the pressure is increased to 8...

A:

Q: How many grams of potassium dichromate (K2Cr207) are required to prepare a 250 mL solution concentr...

A: We will use molarity expression to calculate mass of potassium dichromate required.

Q: Determine the molecular formulas to which the following empirical formulas and molar masses pertain....

A:

Q: Using titration reaction employing normality concentrations, what is the design instrument mathemati...

A: Answer: In the titration with the help of the solution of known concentration, we find out the unkno...

Q: Name: Date: Section: Prelaboratory Assignment: Determination of the Hardness of Water 1. A 0.512 g s...

A: Find out moles of CaCO3 in the given mass of CaCO3 using mass and molar mass and find out its molari...

Q: A solution of oxalic acid dihydrate (H:C:O++2H:0) with a known concentration of 0.400 M H:C2O 2HO is...

A: Given :  Concentration of H2C2O4.2H2O = 0.400 M  Concentration of NaOH = 0.333 M  Volume of H2C2O4.2...

Q: a. Choose the item that correctly describes the oxidizing agent and the reducing agent in the reacti...

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and t...

Q: thermometer A sample of glass, which has a specific heat capacity of 0.670 J·g contains 200.0 g of w...

A:

Q: 10 mL of an aqueous sample is diluted with 90 mL of water, and then 1 mL of that diluted sample is d...

A: Aliquot volume (Vi)= volume of aqueous sample  Diluent volume = volume of water  Vf = final volume  ...

Q: Give the significance of Chromic Acid test? 2. Give the significance of Lucas test? 3. Give the sign...

A: Chemical tests are so much useful to detect the presence anything that we want.  These tests are so ...

Q: What is the concentration of an aqueous HI solution that has a pH of 2.26?     1.82 x 10-2 M     ...

A: Given that, pH = 2.26  Then, [HI] = ?

Q: What is the freezing point of a solution in which 20.0 grams of sucrose (C12H22O12) is dissolved in ...

A: Given, mass of sucrose = 20.0 grams Molar mass of sucrose = 342.3 g/mol Mass of solvent = 400 grams ...

Q: What is the freezing point of a solution in which 20.0 grams of sucrose (C12H22O12) is dissolved in ...

A: When a non volatile solute is dissolved in a solvent, the freezing point of the solution decreases k...

Q: Give the general formula of the following: 1. Alcohols 2. Phenols 3. Ethers What is the nomenclature...

A:

Q: What is the boiling point in C° of a solution of a 2.15 m aqueous solution of glycerol? (Kb = 0.512°...

A:

Q: Which sugar has 3 chiral centers? сно H он он но H но ČH3 В. Rhamnose CH,OH но H ČH,OH C. Erythrulos...

A: If carbon is attached with four different groups and two structures are nonsuperimposable mirror ima...

Q: 06 ml of a standard NaOH was consumed in the titration of 5.0 mlL CHyCOOH sample. Calculate for the ...

A: Given: 1.0 mL of NaOH is equivalent to 0.1071 g of KHP. Volume of NaOH solution required = 9.6 mL. V...

Q: An error due to temperature, humidity and wind. A Instrument Error B Personal Error (c) External Err...

A: Errors occurs in labs while measurements and taking readings.  Errors are categorised into Systemati...

Q: Which test can be used to differentiate ribose and glucose? Molisch Test O Barfoed's Test O Sliwanof...

A: 1. Hydronium ion is H+ ion which is given by strong acids.

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of...

A:

Q: A 0.001 m solution of a weak electrolyte ionizes into 4 ions freezes at -0.06C. What is the apparent...

A: Given: Molality of weak electrolyte = 0.001 m And the freezing point of the solution = -0.06 oC  

Q: CHOH CHCH A CHOH CHOH 1 CHOH `CH 3 CH-OH CH OH B (CH 2 If this were a portion of a polysaccharide, w...

A: Given structure of the polysaccharides is :  Options are :

Q: )0.0100 M in HCl and 0.0320 M in benzoic a ) 0.0100 M in NaOH and 0.075 M in Na,CO )0.0100 M in NaOH...

A: We are given different solutions of mixtures of acids in acids ( part a and b) and mixtures of bases...

Q: K! Play Kahoot!-Enter ga x O Chapter 4.1 W OLogin Greek god personality Bell Ringer 2/28/22 isd.inst...

A: Atomic number of Krypton=36 Atomic mass of Krypton=84 The number of subatomic particles inside and o...

Q: 1. In each pair of aqueous systems, which will have the lower vapor pressure? A. pure water or 1.0 M...

A: Since you have posted multiple questions, we are entitled to answer the first only.  

Q: A compound contains only C, H, and N. Combustion of 35.0 mg of the compound produces 51.3 mg CO2 and...

A:

Q: A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is th...

A:

Q: 1-10. 4.35 L of a gas is at 1.16 atm. What pressure is obtained when the volume is 9.3 L? 11-20. A g...

A:

Q: Write a short note on Chees Reaction?  Please write at your own words

A: cheese reaction occurs when food and alcoholic beverages containing tyramine and other indirectly ac...

Q: Calculate osmotic pressure for 0.10 M Na3PO4 at 20°C

A: Answer: Osmotic pressure is the pressure, that is required to be applied on the solution side stop t...

Q: How many enantiomeric pairs are possible for an aldohexose? O 8 O 2 O 16

A: In a aldehecoses there are 4 chairal carbon. The general rule for enetiomer is 2n-1,where n is no of...

Q: Question 27 он CHOH он CHOH HO I ACNH II OH он CH3 HO HO III но

A:

Q: Define the following terms: a. Humectant b. Emollient c. Occlusive d. Skin Rejuvenator e. Ceram...

A: a) Humectant - Humectant is a substance that promotes retention of moisture. Humectants are hydrosc...

Q: Consider Table 1, which lists the volumes of the Fe3+ and SCN- solutions used for the continuous var...

A: Given: Concentration of KSCN = 0.00200 M Concentration of Fe(NO3)3 = 0.00200 M Volume of Fe(NO3)3 so...

Q: WHICH FORM OF IRON WILL YIELD A HIGHER DENSITY : FCC OR BCC? IRON HAS AN ATOMIC RADIUS OF 0.124 NM

A:

Q: он CHOH он CHOH но- I ACNH II ^OH CH3" он HO III но What is the glycosidic linkage between monosacch...

A: Glycosidic bonds are covalent bond . It formed between sugar molecule or carbohydrate and OR group.....

Q: . Choose the item that correctiy describes the oxidizing agent and the reducing agent in the reactio...

A:

Q: он CH OH OH CHOH но- I ACNH O II OH CH3 HO HO III но

A: This is a reducing sugar as there is a present of free -OH group adjacent to the ring oxygen atom , ...

Q: Packing Efficiency Since the layering pattern in all of the lattices leaves empty space between the ...

A: We have total three types of crystal systems in Solid state  1)  Simple cubic 2) face center cubic (...

Q: If a strong acid is added in a buffered solution, the hydronium ions react with the conjugate base/s...

A: Consider a buffer solution of weak acid (HA) and A-(salt).   

Q: Flammable liquids burn only when their vapor is mixed with air in the appropriate concentration. Whe...

A: Question 3  Flammable liquids catches fire when their vapours are mixed with air.  Several precautio...

Q: Which of the following is the complete IUPAC name of the disaccharide shown? OH но- HO. OH HO C HO O...

A: We have to predict the iupac nomenclature of given compound.  

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.