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What would happen to the calcium ion concentration in a saturated solution of Ca(OH)2 if the hydroxide ion concentration is increased by dissolving solid NaOH? What is the name of this effect?
In many cases, patients require medication to be infused on a continual base. Paramedics will receive orders to administer a certain number of units (usually milligrams or micrograms) of a medication per minute to a patient through an IV. Known as..
the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
What is the freezing point of a solution containing 5.43 grams of butane (molar mass = 58.8 g/mole) dissolved in 50.0 grams of octane? The freezing point of pure octane is 25oC and the freezing point depression constant kfp is 3.42 oC/m.
Calculate the volume of 8.0g of oxygen gas if it has a temperature of 552 K, and a pressure of 5 atmosheres
Solid aluminum reacts according to the balanced equation. If a total of 830 kJ of heat is produced in the reaction as written, how many moles of Al2S3 are produced?
A 89 L sample of dry air is cooled from 134°C to -18°C while the pressure is maintained at 2.85 atm. What is the final volume?
To what volume must 518 mL of 13 M Ca(OH)2 solution be diluted to make a 3 M Ca(OH)2 solution?
A reactor is used to decompose toxic H2S gas (that was removed from natural and petroleum gas). The reaction is given as:H2S (v) = 2H2 (v) + S2 (l)
Does pH have an effect on the cell potential (Ecell) for the following oxidation-reduction reaction? 5Fe^2+(aq) + MnO4^-(aq) + 8H^+(aq) ---> 5Fe^3+(aq) + Mn^2+(aq) + 4H20(l)
The equilibrium constant Kc for the formation of ammonia: N2(g) + 3H2(g) -> 2NH3(g), is 3.6 x 10^8 at 25 C. What is the concentration of ammonia, when the equilibrium concentrations [N2] = 5.4 x 10^-3 M, and [H2] = 2.1 x 10^-3
The brominated product of acetanilide is disubstituted aromatic ring( 2 groups on the benzoering)draw any constitutional isomer that has a monosubtituted aromatic ring and the compound should not have any formal charge
Alpha helices are a type of secondary structure in proteins. What is the length of a 23-kDa single-stranded ?-helical protein segment
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