Determine the mass in grams of C,H10 that are required to completely react to produce 8.70 mol of CO, according to the following combustion reaction: 2 C.H10(g) + 13 02(g) > 8 CO:(g) + 10 H20(g)

Q: The number 8.588682 rounded to 2 significant figures is: The number 701.9951 rounded to 3…

A: Significant figures are the digits of the number that contribute to accuracy. They are all…

Q: 58. Use prefix multipliers to express each measurement without exponents. a. 12.1 x 108 g b. 45.9 x…

A:

Q: Take a look at this sketch, and then answer the questions below about the mass, volume and density…

A: Density of a substance is given by the ratio of mass to that of the volume.

Q: 29. When a measuring scale is used properly to the limit of preci- sion, the last significant digit…

A: The value which is close the measurement to each other is known as precision.

Q: Convert 135.5 μg to dg. Write your answer in the textbook below with the correct number of…

A: 135.5 μg. We need to convert 135.5 μg to dg.

Q: 2 21. dL 0.70 L = ?

A: The "Multiplication and Division Rule" is a concept used in dimensional analysis or unit conversions…

Q: Can you tell me how to arrange numbers of scientific notation in order from largest to smallest?

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: What is the correct volume reading for this buret, using the proper number of significant digits?

A: Steps to read the measurementStep 1: When a transparent liquid is placed in glass ware (like…

Q: Round 329.2258 to 2 significant digits

A: Significant figures are meaningful digits which are known with certainty. There are certain rules…

Q: What is the numerical value of a conversion factor ?why must this be true ?

A: Numerical value of a conversion factor is answered in the next step.

Q: what is the literature value for the density of water to four significant figures?

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: The highest recorded body temperature that a person has survived is 320. K. Part A You may want to…

A: Temperature describes the energy state of a matter. The temperature can be expressed in Kelvin,…

Q: What is the formula weight of the compound? (Mg = 24.31 amu, Cl = 35.45 amu, O = 16 amu, H = 1.01…

A: Formula:  MgCl2.H2O Mass of Mg = 24.31amu Mass of Cl = 35.45amu Mass of H = 1.01 amu Mass of O = 16…

Q: So why do we use counting words instead of numbers?

A: Counting words instead of numbers have either advantages or compulsions.  Counting words like pairs,…

Q: Rewrite this number in nonscientific notation, to the correct number of significant figures. 5.15 x…

A: The nonscientific notation of the above number is given below

Q: 23.14 mg to grams

A: We have to convert 23.14 mg to grams

Q: Can you explain to me about the significant figures addition and subtraction rule? Example of the…

A:

Q: Round each number to two significant figures  233.356       0.002353.   can you please…

A: Interpretation : We have to count number of significant figures.

Q: Rounded 17,997 to tow decimal places

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with…

Q: 1.65 meters to cubic mililiters

A: As known unit conversion:

Q: C,H,0 2738 2820 1703 4000 3000 2000 1000

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: Identify the prefix that defines each power of ten. 10%: 10%: 10-² 10-³ 10-6:

A: Prefixes are easier to write and pronounce than powers of 10.

Q: An object measuring 25.0 inches will have a length of _____centimeters.  round your answer to the…

A: We will use the inch-cm relation: 1 inch = 2.54 cm

Q: 17. Divide these measurements and round off if necessary: 235 divided by 62

A: The given question is an example of division and the answer is shown below.

Q: As a whole number what is 4.13x10-7

A: Given:- 4.13 × 10-7 write whole number -

Q: is its answer in its correct significant digits placement?

A: The  pH of a 0.325M solution of NH4CI --> pH = 4.87  This is the correct significant figure…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.