Multiply the following and express your answer in appropriate scientific notation, and a correct number of significant figures. (1.9 x 10-38) × (1.8 × 10-48) product

Q: Give the empirical formula of each of the following compounds if a sample contains the following qua...

A: The emperical formula can be calculated as follows

Q: uawssassY Directions : In a long bond paper, answe 1. How will you classify phot 2. Calculate the AE...

A: In photosynthesis reaction CO2 and H2O reacts to form glucose.  2. q = 250 KJ  Work done = - 170 KJ ...

Q: An adult female goes on a diet that provides 1200  kcal per day with no more than 25% from fat and n...

A: Total Calories = 1200 kcal/day       

Q: 5. Empirical formula for C4Hsl4N2 Is. a) CH2IN b) C2H42N c) C2H2LN2 d) none of all

A: Empirical formula is the simplest whole number ratio of atoms present in a compound. Where as the mo...

Q: the section in your e Text. Part B Identify the equilibrium-constant expressions for the following r...

A:

Q: ill salt solution freez lecular weight of Na NaCl is a strong ele tively.

A: Solution is made up of solute and solvent Solute isresent in small amount and solvent is present in ...

Q: 100 90 80 70 50 40 30 20 10 3500 3000 2500 2000 1500 1000 500 Wave number (cm -1) Band Intensity W o...

A:

Q: Provide the answer if the compounds will react. 1. Which compound/s will react with Br2 in water un...

A: A substitution reaction is a reaction where one group is substituted for another group in a single s...

Q: - the AH value

A:

Q: Draw the products of the following Diels-Alder Reactions. Remember to show the correct stereochemist...

A: In Diels alder reaction, diene react with dienophile to form 4+2 cycloaddition  product.  

Q: NO2 NO 2 H N. +

A: This is a type of aromatic substitution reaction. Resonance and electron withdrawing groups supports...

Q: The toluene proton NMR spectrum, consisting of two peaks due to the methyl and aromatic protons, has...

A: Use formula ν1v2 = B1B2 Where v1 = 55 MHz and v2 = 500 MHz are frequencies at magnetic field B1  = 1...

Q: The activation energy of an uncatalyzed reaction is 95 kJ/mol. The addition of a catalyst lowers the...

A:

Q: Which of these molecules contains fewest high energy electrons (i.e. in which of these molecules is ...

A: The carbon becomes more oxidized when it is the carbonyl(C=O) carbon.  

Q: What is the rate of reaction when the transition state free energy is 22.84 kJ/mol? What is the rate...

A:

Q: You were given a sample of virgin coconut oil and solutions of the following: A- Ethanol B- NaOH C- ...

A: Solution - According to the question - Given - Ethanol , chloroform ,octane  set of solutions will b...

Q: Determine: 2 Fe203(s) + 3 C(s) → 3 CO2(g) + 4 Fe(s) Given Enthalpy (K/mol) 3 -833.8 O2(g) Fe203(s) 2...

A:

Q: Explain why the [Fe(CN)6]3- ion has one unpaired electron, while the [Fe(NCS)6]3- ion has five unpai...

A:

Q: 1. Rank the following compounds from most to least acidic at the indicated hydrogen, and explain you...

A:

Q: 3. This H spectrum exhibits resonances at the following chemical shifts, and with these integrated a...

A: This Question is based upon NMR Spectroscopy.

Q: u um Magnitude of the Equilibrium Constant I Review | Con Part B For a reaction The industrial produ...

A: The given chemical reaction is a reversible reaction and the reaction is as follows: CaCO3s ⇌ CaOs +...

Q: Analysis of Common Anions and Their Salts 1. Why do the preliminary tests not help in the identifica...

A: A Nitrate Test is a substance test used to decide the presence of nitrate particle in arrangement. T...

Q: 3. A solution is 0.0500 M in NH.Cl and 0.0250 M in NH3. K. (NH) = 5.70 x 10-10 Calculate the pH of t...

A:

Q: how to prepare this buffer TES (Sigma-Aldrich) infiltration buffer (10 mM TES, 10 mM MgCl2, pH 7.5) ...

A: TES, having the molecular formula C6H15NO6S, is widely used to prepare buffer solution. A TES buffer...

Q: When 372.4 mL of 1.149 M AGNO3 is added to 300.8 mL of 1.383 M NH,CI, how many grams of AgCl are for...

A:

Q: 1) Outline reasonable synthetic schemes to convert pentane to 1-tritio-1-butyne 2) Draw a reasonable...

A: Here we have to synthesize 1-tritio-1-butyne from pentane by multistep reactions.  

Q: s this compound E on 2 '?

A:

Q: Please sort each of the following bases from least (top of the list) to most (bottom of the list) ba...

A:

Q: For the rearrangement of cyclopropane to propene at 500 °C (CH2)3 CH3CH=CH2 the following data have ...

A:

Q: What is the density of a piece of nickel that has a mass of 49.2 g and a volume of 7.9 cm³? The dens...

A:

Q: Which of the following will be soluble with water?   Group of answer choices Vegetable Oil Desi Ghee...

A: The solubility of a compound mainly depends on the following factors; Temperature Nature of solute ...

Q: Potassium hydrogen phthalate, KHP, is often used as a primary standard for the standardization of so...

A:

Q: What is the change in the internal energy of the system if the surroundings releases 300J of heat en...

A:

Q: Iron ore is converted to iron metal in a reaction with carbon. 2 Fe2 O3 (s) + 3 C(s) →4 Fe(s) +3 CO2...

A:

Q: Experiment name: Heat of solution (KNO3 and Tris) in Calorimetric Thermometer. Q.1 Purpose of experi...

A: Purpose of experiment in a lab report or experiment tells us about what we are gonna be exploring or...

Q: hat is the percent ionization in a 0.530 M solution of formic acid (HCOOH) (Ka = 1.78 × 10⁻⁴)

A:

Q: How much concentrated 18 M sulfuric acid is needed to prepare 250ml of a 6.0 M solution?

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute...

Q: consider the following equilibrium. CrO4(aq) + 2H(aq) Cr2O7(aq) + H2O(l) (yellow)                ...

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: Explain how TLC and column chromatography can be used together to ensure the perfect separation of t...

A: Chromatography is a technique for the separation of a compound from the mixture. The column chromato...

Q: Explain why the behavior of H2 (positive deviation) is different from the behavior of CH4 and NH3, (...

A: A question based on intermolecular forces that is to be accomplished.

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 291. kJ during a ...

A:

Q: The reason that x-rays show bones so well Ca it absorbs x-ray much better than surrounding soft tiss...

A:

Q: 3-(a) Write out the full electron configuration of Calcium (Ca). (b) How many electrons are in the n...

A:

Q: Set up the following reactions. Each reaction has to be balanced. a) Ethane reacts with Oxygen in a ...

A:

Q: Cholesterol is a component of the plasma membrane.  Explain the importance of cholesterol in the cel...

A:

Q: 6. Draw CrCl2(OH2)4 + , CrCl(OH2)5 2+, and Cr(OH2)6 3+ by hand indicating the correct 3D geometry. ...

A:

Q: volume

A:

Q: A salt composed of the cation of a weak base and the anion of a strong acid gives an aqueous solutio...

A: Strong acids are those acids which dissociates completely into ions.  Weak acids are those acid whic...

Q: What would happen to the cells if a hypertonic solution was injected directly to the bloodstream? ex...

A: Solution is of three types:-  Hypertonic  Hypotonic  Isotonic

Q: A 4.200 g sample containing impure CuCl2- 2 H20 was heated to constant mass. The sample mass after h...

A: Mass of impure hydrated sample = 4.200 g  Mass of sample after heating = 3.362 g   We need to find m...

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.