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Covers the nature and composition of matter, solutions, chemical reactions, equilibria, thermodynamics, and electrochemistry with engineering applications.
Atomic number plus the number of neutrons is referred to as:
Which of the following can increase the pressure of a gas?
Elements are arranged in the periodic table in order of increasing atomic number.
Compute the area given the following measurements: 2.0546 cm and 4.3 cm. Express the answer in significant figures.
AB4+2C2->AC2+2B2C. If 100 grams of AB4 reacts with excess of C2, it will produce 100 grams of AC2.
The internal energy of a system increases when heat is applied of work is done into it.
Dalton's law of partial pressure states that constant temperature and volume, the total pressure of a gas is ____________ proportional to the number of moles of gas present.
The number of electrons and protons are equal in number.
Which gas law states that at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature?
What is the mass number of an atom that has 2 protons, 2 electrons and 4 neutrons?
Given the percent composition by mass of all the elements in an unknown compound, we can always determine its molecular formula.
Partial pressure is defined as the amount of pressure exerted by each component gas in a mixture, which is independent of the pressure exerted by the other gases.
Using the periodic table, which element is in Group 4A period 6?
Which of the following statement is not true regarding kinetic molecular theory?
How many significant figures are in 0.0054
If 2 moles of AB4were made to react with 2 moles of C2, 1 moles of AC2 will be produced.
Which ion is not correctly named?
Resveratrol, C14H12O3 is a compound usually found in grapes and some berries. The molar mass of this compound is 228.26 g/mol. How many moles of resveratrol are in 600 grams of sample?
Suppose 20.50 g of Al reacts with excess O2, how many grams of Al2O3 is produced? (Molar Mass of Al2O3 is 101.96 g/mol)
Which of the following statement is true regarding Dalton's atomic theory?
How many grams of Carbon are in 600 grams of Resveratrol?
Ideal Gas Law is expressed as PV=nRT.
Which of the following is the correct formula of sulfurous acid?
Which of the following statement is correct?
Which of the following statement is not true according to Dalton's atomic theory ?
Pressure is defined as the effect of a force applied to a surface and can be measured by means of a barometer or manometer.
According to the kinetic molecular theory, average kinetic energy of gas molecules is proportional to absolute temperature. At any given temperature, gas molecules have exactly similar average kinetic energy.
What is the name of the compound that has 2 sulfur and 10 fluorine?
Which of the following statement is true regarding atoms?
Which of the following statement is true regarding balancing chemical equations?
What is defined as the amount of heat needed to raise the temperature of 1gram of the substance by 1K or 1C?
How many significant figures are in 0.000187?
Which of the following statement is not correct?
Which gas law states that at at constant temperature and pressure, volume of gas is directly proportional to the number of moles of gas present.
Elements can be decomposed into smaller substances.
The empirical formula of an unknown compound was determined to be CH2O. A separate analysis to determine the molar mass was done. Results show that the molar mass is 360.36 g/mol. What is the molecular formula of the unknown compound?
How many moles of Al is needed to produce 4 moles of Al2O3
Positive ΔH means that heat is lost from the system into its surroundings, while negative enthalpy ΔH means that heat is absorbed by the system from its surroundings
Molar heat capacity is the amount of heat needed to raise the temperature of 1 mole of a substance by 1K or one degree celsius.
How many significant figures are in 0.00002?
Which of the following statement is true regarding matter?
What is the name of the compound that has 2 nitrogen and 4 oxygen?
What is the mass number of an atom that has 5 protons, 5 electrons and 6 neutrons?
What is an example of endothermic process?
A percent yield of 100% is impossible to attain in the laboratory.
What is the mass percent of Hydrogen, H, in resveratrol?
As the mass or speed increases, kinetic energy decreases.
Which of the following increases as work increases?
The percent composition by mass of ferrous sulfide, FeS, is 50% Fe and 50% S.
One mole of Phosphorus, with atomic mass of 30.97 amu, has greater number of atoms than one mole of Boron, with atomic mass of 10.81 amu.
Iron, Fe, has an atomic mass of 55.85 amu therefore, the molar mass of Fe is 55.85 g/mol.
In a balanced chemical equation, the number of atoms of an element on the left side is always equal to the number of atoms on the right side.
Kinetic energy is expressed as:
Which of the following statement is true regarding the periodic table?
The -ium ending on the name of hydronium indicates that it is a cation from metal atoms.
Accuracy is a measure of how closely individual measurements are to the actual or true value, while precision refers as to how closely individual measurements are to one another.
Aluminum oxide, Al2O3, is synthesized by the reaction of aluminum, Al, and oxygen gas, O2. Which of the following equations correctly represent the reaction?
How many significant figures are in 4.0300 x 103 g?
As long as we use stoichiometric amounts of reactants in a reaction carried out in the laboratory, we are guaranteed to get the theoretical yield of the reaction.
Dalton's law of partial pressure states that constant _____________ and volume, the total pressure of a gas is directly proportional to the number of moles of gas present.
Gases take up volume and shape of its container, are considered the least compressible state of matter and have the lowest density compared to solids and liquids.
______________ are elements located in rows, while ________ are elements located in columns
Which gas law states that at a constant temperature, the volume of a fixed amount of gas is inversely proportional to its pressure?
The difference between the mass number and the atomic number equals the number of ________________ in an atom.
Suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 35.48 grams of Al2O3 is produced. What is the percent yield of Al2O3?
Which of the following statement is true regarding Ideal Gas Law?
One mole of N2 contains 2*6.022 x 1023 molecules.
Higher temperature in gas means higher ____________.
Charle's Law states that at a constant pressure, the volume of a fixed amount of gas is inversely proportional to its absolute temperature
How many significant figures are in 5.070 x 103 g?
Copper, Cu, has two stable isotopes, 63Cu with atomic mass of 62.9 amu and 65Cu with atomic mass of 64.93 amu. The average atomic mass of Cu is 63.54. What are the percent abundances of the two isotopes?
Using the periodic table, which element is in Group 2A period 5?
Which of the following statement is true regarding Gas Laws?
How many atoms of oxygen are in 1 mole of Resveratrol?
Which of the following is true regarding specific heat?
___________________ is a combination of Boyle's, Charle's and Avogadro's laws.
In reference to item 13, suppose synthesis of Al2O3 is done in the lab using 20.50 g of Al and excess of O2. Upon purification, 30.33 grams of Al2O3 is produced. What is the percent yield of Al2O3?
Compute the area given the following measurements: 3.7552 cm and 1.7 cm. Express the answer in significant figures.
What is defined as the described as the sum of the internal energy and product of pressure and volume in a system?
Convert 35.6 degrees Celsius to Fahrenheit
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