Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
What happens to the kp in th reaction 2NOBr(g)<--->2NO+Br2...when temperature is increased
When two gases are mixed, they follow Dalton's law of partial pressures. -It is impossible to compress a gas enough so that it takes up no volume. -CO2 gas becomes dry ice (solid CO2) at 1 atm and -
The decomposition of nitrosyl bromide is shown below (Kp=2.3*10^-3) if .25 atm of wach gas is initially present is the reaction at equilibrium. If not explain the direction the reaction must proceed
FeCl3 and Mg3(PO4) to give FePO4 and MgCl2 I need to know what are the : Molecular Equation? Ionic Eq? Net Ionic Eq? What is the name of this type of reaction. Which ions are spectator ions
Identify the group of elements that corresponds to each of the following generalized electron configurations and indicate the number of unpaired electrons for each:
3.45 g of an unknown gas at 41 °C and 1.00 atm is stored in a 1.25-L flask. What is the density of the gas. What is the molar mass of the gas.
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
which gas has particles with the slowest average speed at 28 C? 1- Carbon dioxide 2- Sulfur trixoide 3- Sulfur hexafoluride 4- Hydrogen choride 5- Helium
(Calculate using the given masses.) lighter isotope amu heavier isotope amu (c) Determine the average molecular mass of a Br2 molecule. amu (d) Determine the average atomic mass of a bromine atom. a
Arrange the following 0.1 M solutions in order of increasing conductivity and explain why you chose this order: 0.1 M FeCl3, 0.1 M MgCl2, 0.1 M NaCl, 0.1 M glucose (C6H1206)
How much energy is evolved in the transition from the n = 2 to the n = 1 level for 0.5 mole hydrogen
A welder uses 20 gallons of gaseous acctylene (C2H4). What volume of O2 gas measured at the same conditions is consumed Given the following equation
write the reaction that occurs when ammonia and acetic acid are mixed. b. Although ammonia and acetic acid are weak electrolytes, a mixture of these two solutions behaves as a strong electrolyte.
In each case indicate whether the reaction is spontaneous at 298 K under standard conditions. P4O10(s) + 16H2(g) -> 4PH3(g) + 10H2O(g) Gibbs free energy for P4O10(s) is -2675.2 kJ/mol Gibbs free
Use values of ksp and kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3M in OH-
Assign an oxidation state to each element in each compound. Express all answers as a signed integer. 1. Na3PO4 2. Hg2S 3. Fe(CN)3 4. NH4Cl
Use oxidation states to identify the oxidizing agent and the reducing agent in the following redox reaction. Express both answers as chemical formulas. 1. 2Na(s)+2H2O(l)--->2NaOH(aq)+H2(g)
Assign an oxidation state to each atom in each polyatomic ion. Express answers as a signed integer. 1. CrO4^2- 2. Cr2O7^2- 3. PO4^3- 4. MnO4^-
Rank the following nitrogen compounds in order of decreasing oxidation number for nitrogen. Rank from highest to lowest oxidation states. N2,NO2,NO2-,NH3,NO^-3,NO
When the Vmax and the Km of an enzyme are not known, it is essential to determine the enzyme's initial velocity (Vo) at different [S]. To determine the initial velocity, one would have to: Select on
What is the oxidation number of the monoatomic ions of the following elements. Sr,Rb, Na, Al,O,Se, Ba,I, Fr, Cl, N
For each reaction, identify the substance being oxidized and the substance being reduced. Express answers as chemical formulas for oxidized and reduced answers. 1. 2Sr(s)+O2(g)----->2SrO(s) 2. C
If an automobile air bag has a volume of 12.2 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact. Assume STP conditions. 2NaN3(s) --> 2Na(s) + 3N2 (g)
Calculate the pH of the solution formed by the addition of 55.5 mL of 0.100 M NaOH to 49.2 mL of 0.100 M H3PO4.
Calculate the potential of a hydrogen ( p= 1.02 atm) electrode in an aqueous solution of HBr (0.05 m ) at 298 K A) assuming ideal solute behavior. B) using the Deby- Huckel equation.