Identify each of the following as a measured number or exact number: 5 books 0.035 kg 12 beakers 1000 mL = 1 L 9.25 L 100 cm in 1 m 59.067 g 8.03 mL

Q: For the reaction2CO2(g)+ 5H2(g)C2H2(g) + 4H2O(g)H° = 5 kJ and S° = -125 J/KAt standard conditions, t...

A: Given that delta S is -125J/K and the value of delta H is 5kJ. Thus, the value of delta G in appropr...

Q: Duncan knows that it takes 36400 cal of energy to heat a pint of water from room temperature to boil...

A: From the given, 1 pint requires 36400 calories of energy to boil from room temperature.0.750 pint re...

Q: According to the following equation, how many moles of carbon dioxide are produced by completely com...

A: The balanced chemical reaction is shown in equation (1).According to balanced chemical equation 1 mo...

Q: In a battery, the following oxidation-reduction reactions are taking place:  Mn2O3 + ZnO → 2MnO2 + Z...

A: Redox reactions include oxidation and reduction reactions occuring simultaneously. Reduction is said...

Q: what does (98% wt/wt) mean?  The question I'm being asked is "what is the mass of 10.57 mL of acetic...

A: Weight by weight percentage (wt/wt %) is defined as the ratio of weight of a solute to the total wei...

Q: A 4.0 m H2 S O3 solution would have what mass percent of H2 S O3 in this solution? The molar mass of...

A: Mass percent of H2SO3 need to calculate with the help of molality of given solution.

Q: An adult eats food whose nutritional energy totals approximately 2200 Cal per day. The adult burns 2...

A: The amount of energy which is accumulated as fat in one day is 2200cal – 2000cal = 200cal.  The numb...

Q: I have a question on conversions. I need like a step by step run down. The question states: Convert ...

A:

Q: A water heater contains 54 gal of water. How many kilowatt-hours of energy are necessary to heat the...

A: Step 1-We have to calculate the value of energy in kilowatt hours necessary to heat the given water ...

Q: 1. You are given a substance that is equally soluble in water and hexane (two immiscible solvents). ...

A: Water is a polar solvent while hexane is non-polar in nature. Due to this, the two solvents are immi...

Q: Determine the pH of a 0.025M aqueous solution of a strong acid (e.g.HClO4).

A: The dissociation of perchloric acid in aqueous solution is given as

Q: 70% iPad 11:35 PM 51_Kinetic_Homework.pdf Chem 51 Homework 1 (Kinetics) 1. Consider the following re...

A: We will answer the first question since the exact one was not specified. Please submit a new questio...

Q: Consider the reaction:2HBr(g)H2(g)+ Br2(l)Using standard thermodynamic data at 298K, calculate the f...

A: Using standard thermodynamic data at 298K, the standard Gibbs free energy of formation of the produc...

Q: Glycolysis, A. is the breakdown of glucose to two pyruvic acid molecules. B. requires the input of t...

A: The term glycolysis refers to the metabolic pathway in which glucose gets converted to pyruvate mole...

Q: Provide the structure of the major organic product in the reaction shown below. 5. Br 1. Mg, Et20 2....

A: Grignard Reaction is an organometallic reaction in which different alkyl, aryl-magnesium halides add...

Q: Question 4 A and B

A: The average density can be calculated using the following data by adding the values of the given den...

Q: Please solve B.   thank you

A: Given that the decomposition follows a second order and has a rate constant of 7.02 x 10-3 M-1s-1.Th...

Q: imagine attached for question

A: Analysing the given compound, there are three chiral carbons present which are labelled with asteris...

Q: How many grams of boric acid, B(OH)3 (FW 61.83), should be used to make 2.50 L of 0.4300 M solution?

A: Molarity can be calculated using following equation.

Q: Provide the major organic product of the reaction below. 2. OCH3 1. CH,CH2CH,MgBr (2 eq) 2. H30* HyC

A: The given reaction contains reactant with one ester group in presence of Grignard reagent and hydron...

Q: For the reaction2NO(g)+ O2(g)2NO2(g)ΔG° = -73.5 kJ and ΔS° = -146.5 J/K at 278 K and 1 atm.The maxim...

A: The temperature for the given reaction is not changing and it required to calculate maximum amount o...

Q: 4. Which molecule is polar? a. C2H4 b. CS2 c. CH6 d. SO2 e. CF4

A: If a molecule has a dipole moment, it is termed as a polar molecule. Symmetrical molecules are non-p...

Q: The equilibrium constant for a system at chemical equilibrium at 318 oC is 3.4 x 10-3.  Calculate th...

A: The standard free energy change for the system is given by the expression given in the equation (1) ...

Q: Please calculate the mass in grams of one mole of each of the following:    a. atoms of carbon-12 (1...

A: (a)One mole of any substance contain 6.022*10^23 atoms. Therefore, mass of one mole of atoms of carb...

Q: CH4(g) + 2O2(g) CO2(g) + 2H2O(l)   Your answer was: -8.18 x 105 The actual value: -8.180 x 105 ...

A: The standard free energy change of the reaction is related to the equilibrium constant by the expres...

Q: The carbon dioxide you breathe out comes from A. glycolysis. B. the electron-transport chain. C. ana...

A: This biochemical reaction occurs inside human bodies are mainly sugars, carbohydrates, fats and prot...

Q: Anaerobic respiration occurs in the _____________ of oxygen and produces _____________ energy (ATP) ...

A: Anaerobic respiration: Anaerobic respiration is the process where cells that do not take up oxygen p...

Q: Conversion Factors: A rattlesnake is 2.44-m long. How long is the snake in cm? Note:  We just learne...

A: Given,2.44 m1 meter = 100 centimetres.

Q: Consider the reversible reaction at equilibrium at 392oC:2A(g) + B(g) C(g)The partial pressures are ...

A: The equilibrium constant for given reversible reaction is calculated as,

Q: What is the temperature in Kelvin if it is 84.2 °F outside?

A: The unit of temperature can be converted from Fahrenheit to Kelvin using the given formula.

Q: In going from room temperature (25.0°C) to 10°C above room temperature, the rate of a reaction quadr...

A: Rate of reaction is the product of rate constant and the concentration of reactants raised to power,...

Q: 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately 10...

A: The reaction between NaOH and KHP can be shown as,

Q: Which of the following is TRUE of hydrophobic molecules? They have limited solubility in water....

A: Answer is all of the above.Since hydrophobic molecules are non-polar and water is polar, they are sl...

Q: A molecule that moves electrons from the citric acid cycle to the electron-transport chain is A. tRN...

A: NADH and FADH2 releases high energy electrons that moves along electron transport chains .  The elec...

Q: A metal "X" is used as a “sacrificial” anode on hulls of salt water vessels made of iron. The effect...

A: The voltage of a reaction in the electrochemical cell is expressed in terms of the electrode potenti...

Q: The boiling point of pure benzene (C6H6) is 80.1C, a sample of 93.7mL of benzene is used to dissolve...

A: When chlorocyclohexane is added to benzene there will be an elevation in boiling point.The change in...

Q: A sunscreen preparation contains 2.50% by mass benzyl salicylate. If a tube contains 4.0 ounces of s...

A: It is required to calculate the mass of benzyl salicylate in kg required to manufacture 325 tubes of...

Q: For the reaction shown, at 25° C, dleta S  is0.00300 kJ/(mol K). Calculate the delta G for this reac...

A: The equation given below helps us to calculate the change in free energy in a system.

Q: What is an extensive property? What is an extensive property of oxygen?

A: Extensive property is the property which depends upon the amount of matter or mass. Mass, volume, am...

Q: 2+ 6. (a) List the formula for each observed Cu(EN),ion, its max and its color.

A: The coordination complexes can be defined as the complex compounds which have coordinate linkage bet...

Q: The role of oxygen in aerobic respiration is to A. form water that is the medium of all chemical rea...

A: The role of oxygen in aerobic respiration is to provide transport of electrons from the cystol acros...

Q: 4. The maximum value of n in [Cu(EN),,J for a Cu2+-EN solution is the key to a gravimetric method fo...

A: Coordination compounds are formed by the coordinate bonding of central metal and ligand. In this typ...

Q: Pentane (C5H12) is a liquid with a density of 0.626 g/mL near 25°C. Use the equation below to find t...

A: A liquid with low density has different mass in air and vacuum , this is due to the bouyancy of air....

Q: For the reaction2NO(g)+ O2(g)2NO2(g)G° = -73.5 kJ and S° = -146.5 J/K at 278 K and 1 atm.The maximum...

A: The reaction of NO gas with oxygen gas results in the formation of nitrogen dioxide gas. The corresp...

Q: Consider the reaction:C2H4(g) + H2O(g)CH3CH2OH(g)Using standard thermodynamic data at 298K, calculat...

A: The standard thermodynamic data for the given reactants and products at given temperature is,

Q: 5. Write a flow chart to show how you could separate the following pairs of compounds by using acid-...

A: Step1:By using acid base extraction, from a given mixture separation of pure compounds depends on th...

Q: A 10 mL graduated cylinder has a height of 7.12 inches.  Make the following conversions  height in c...

A: It is given that the height of a 10 mL cylinder is 7.12 inches. The height can be converted to cm by...

Q: The boiling point of methanol is 72.2 oC. The molar boiling point elevation constat for methanol is ...

A: Moles of acetic acis is 0.8333 mol.

Q: How do you write the chemical symbols for three different atoms or atomic cations with 21 electrons.

A: The below are the atoms and ions containing 21 electrons,Sc:Atomic number of Sc is 21, which means i...

Q: How to to solve a problem in solution stoichiometry.

A: Solution stoichiometry involves the calculation of concentration of solutions in the given condition...

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.