A mixture contained no fluorine compound except methyl fluoroacetate, FCH2COOCH3 (molar mass = 92.07 ...
[html]A mixture contained no fluorine compound except methyl fluoroacetate, FCH2COOCH3 (molar mass = 92.07 g/mol). When chemically treated, all the fluorine was converted to CaF2 (molar mass = 78.08 g/mol). The m
An unknown metal (M) is electrolyzed. It took 74.1 s for a current of 2.00 amp to plate 0.107 g of ...
[html]An unknown metal (M) is electrolyzed. It took 74.1 s for a current of 2.00 amp to plate 0.107 g of the metal from a solution containing M(NO3)3. Identify the metal
A reaction that absorbs 49.6 kJ from the surroundings in a vessel that undergoes a volume decrease o
A reaction that absorbs 49.6 kJ from the surroundings in a vessel that undergoes a volume decrease of 1.25 L at a constant 4.00 atm pressure has an energy change, ΔE = ________ kJ.
An unknown hydrate of cobalt(II) cyanide, Co(CN)2 • XH2O, is heated to give 32.7
An unknown hydrate of cobalt(II) cyanide, Co(CN)2 • XH2O, is heated to give 32.7% water. What is the water of crystallization (X) for the hydrate? A) 2 B) 3 C) 4 D) 6 E) 10
An aqueous solution contains [Ba2+] = 5.0 10-5 M, [Ag+] = 3.0 10-5 M, and [Zn2+] = 2.0 10-7 M. ...
[html]An aqueous solution contains [Ba2+] = 5.0 × 10-5 M, [Ag+] = 3.0 × 10-5 M, and [Zn2+] = 2.0 × 10-7 M. Sodium oxalate is slowly added so that [C2O42-
The following galvanic cell has a potential of 1.214 V at 25 ∘C: ...
The following galvanic cell has a potential of 1.214 V at 25 ∘C: Hg(l)|Hg2Br2(s)|Br−(0.10M)||MnO4−(0.10M),Mn2+(0.10M),H+(0.10M)|Pt(s) Calculate the value of Ksp for Hg2Br2 at 25 ∘C.
A particular 12V battery is based on a reaction having a standard cell potential, E° = +1.92 V. What
A particular 12V battery is based on a reaction having a standard cell potential, E° = +1.92 V. What happens when the battery "dies"? A) E° = 12 V and E = 0 V B) E° = 0 V and E = 12 V C) E° = +1.92 V and E = 0 V D) E° =
A solution with a hydroxide ion concentration of 4.15 × 10-7 M is ________ and has a hydrogen ion co
A solution with a hydroxide ion concentration of 4.15 × 10-7 M is ________ and has a hydrogen ion concentration of ________. A) acidic, 2.41 × 10-7 M B) acidic, 2.41 × 10-8 M C) basic, 2.41 × 10-7 M D) basic, 2.41 × 10-8 M
Ethanol ( OH) melts at -114C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid ...
Ethanol ( OH) melts at -114C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/gK and 2.3 J/gK, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -125C to liquid ethan
Recently learned that like 80% of humans have microplastics in their blood stream now from just about every type of plastic we've ever used as consumers.
Does there exist nonplastics that can have a lot of the same properties as plast
How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous
How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous Cu2+ ions to produce 3.50 moles of copper metal? A) 0.267 hours B) 0.533 hours C) 1.88 hours D) 3.75 hours
You dissolve 0.100 moles of a certain weak acid “HA” in sufficient water so that the final solution volume is 1.00 liters at 25°C. Once equilibrium is established, the pH of the solution is 3.95. What is Ka for HA?
∆G° for the decomposition of nitrogen dioxide to produce nitric oxide (NO) and oxygen (see balanced chemical equation below) has a value of +69.8 kJ/mol. What will be ∆G for this reaction at 25° C if the reaction is initiated wi
What is the concentration of Pb2+ ions in a saturated solution of PbF2 at equilibrium?
Ksp for PbF2 is 2.7 x 10-8. What is the concentration of Pb2+ ions in a saturated solution of PbF2 at equilibrium (prepared by adding a sufficient amount of PbF2 to water to ensure undissolved PbF2(s) is in the solution)
What is the minimum number of carbon atoms necessary to form an alcohol that is chiral?
Consider all the possible structural isomers that can be drawn for the series of simplest alcohols (one alcohol as the functional group replacing one H of an alkane). What is the minimum number of carbon atoms necessary to form an alcohol that is chi
Citric acid is a ____(i)_____ acid containing ____(ii)____ chiral carbons.
Citric acid (structure below) is a key metabolite formed from the oxidation of glucose in your body. Citric acid is a ____(i)_____ acid containing ____(ii)____ chiral carbons. [url=https://biology-forums.com/index.php?action=gallery;sa=view&
BH+(aq) + OH-(aq)
