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Calculate the volume of a sample of carbon monoxide at -60.6°C and 801 torr if it occupies 29.4 L at 372 K and 189 torr.
Ions B and C react to form complex BC. If 20.0mL of 1.25M B is combined with 20.0mL of 1.25M C, 0.00650 mol of complex BC is formed. Determine the equilibrium constant for this reaction.
The Kb of methylamine is 4.4*10^-4. What is the pH of a 0.35 M solution of methylamine? a. 10.19 b. 3.81 c 12.09 d. 1.91 e. 11.56
Calcium hydroxide reacts with carbon dioxide to form calcium carbonate. The reaction for this process is: Ca(OH)2(s) + CO2(g) ? CaCO3(s) + H2O(g), ?H = -69.1 kJ What is the enthalpy change if 380 g
A gas has a mass of 0.305 g, volume of 25 ml at 2 ATM and 0 degrees Celsius. The gas consists of bromine and fluorine. What is the molecular weight and the chemical formula
The mercury level in the open end of the manometer is 22 mm below that in the side connected to the argon. What is the pressure of argon, in mmHg
Consider the following reaction: Xe(g) + 2 F2(g) ? XeF4(g) Kc = 1.58 × 10-8 A reaction mixture initially contains 2.24 atm Xe, 4.27 atm F2, and no XeF4. If the equilibrium pressure of Xe is 0.
Balance the following ionic Lewis structures by placing the appropriate coefficients. Leave a target blank to indicate the absence of a coefficient
In the presence of a tungsten catalyst at high temperatures, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature is 3.7*10
Calculate the volume of carbon dioxide at 20.0 degrees C and 0.910 atm produced from the complete combustion of 5.00 methane. Compare your result with the volume of CO2 produced from the complete co
What is the PH of the buffer that results when 12.0 g of NaH2PO4 and 8.00 g of Na2HPO4 are diluted with water to a volume of .50 L? (Ka of H2PO4=6.2*10^-8, the molar masses are 120.0 g/mol and 142.
If 4.21*10^-3 moles of Ca^2+ react with excess PO4^3- to form calcium phosphate, how many moles of the solid will form.
What is the pH of a solution of 0.700 M K2HO4, potassium hydrogen phosphate? b)What is the pH of a solution of 0.450 M KH2PO4, potassium dihydrogen phosphate
If 15.00mL of 1.00M HCl solution is mixed with 25.00mL of a 0.250M NaOH solution in a process that produces 273 mg of NaCl, what is percent yield
According to valence bond theory, the triple bond in ethyne (acetylene, C2H2) consists of A) three sigma bonds and no pi bonds B) two sigma bonds and one pi bond C one sigma bond and two pi bonds
explain the difference in boiling point between the isomers 1-chlorobutane and 2-methyl-2-chloropropane in terms of structure.
How does electron configuration work. If I have [Ar]3d^5 as an example how do I know what it actually equals
Construct a delta H and delta S table, including the four possibilities associated with the two possible signs for each of delta H and delta S. Discuss the resulting sign of delta G and the spontane
What is the optical purity, or enantiomeric excess, of the 2-octanol produced in this reaction? 10% S. What is the ratio of enantiomers of 2-octanol in the product mixture
Calculate q, w, ?E, and ?H for the process in which 80.0 g of nitrous oxide gas (N2O) is cooled from 162°C to 53°C at constant pressure of 5.00 atm. (See Table 9.1.) N2O Cv J/K mol = 30.38 C
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E,
The amount of nut burned was 0.9905g. How many of these nuts would a 64kg person have to eat to obtain enough energy to bike (racing)for 30min. The amount of bicycling (racing) is 0.127
For the following battery: Cd(s) | CdCl2(aq) || Cl-(aq) | Cl2(l) | C(s) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) From wh
which are hybrid orbital the carbon at the following molecules a, H3C-CH3 b, H3C-CH= CH2 c, CH3-C Tripl bond C-CH2OH d, CH3CH=O