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Determine the number of moles of water (H2O) are in 39.6 g of sodium sulfate hydrate, Na2SO4 •10H2O? And also find out the moles of phosphorus, P, are in 39.0 moles of calcium phosphate, Ca3
Calculate the ml of HNO3 solution that should be made when an experiment needs 2.033 g of HNO3 dissolved to make a 6.00 NHNO3 solution to neutralize a base.
The difference among the atomic radii of NA and K is relatively large compared to the difference between the atomic radii of Rb and Cs. Why?
If the equilibrium partial pressure of NO2(g) is 0.228atm, and the equilibrium partial pressure of N2O4(g) is 0.451atm. Find out the equilibrium constant for this reaction?
Explain how much AlCl3 can be obtained from 8.35g chlorine and 2.55g aluminum? Pertain to the reaction: 2Al + 3Cl2 ----->2AlCl3
The molar mass of carbon is 12.00 gmol-1. The volume of the nucleus of a carbon atom is about 9.9 *10-39 mL. Find out the density of the carbon nucleus? Covert using this: 6.022 * 1023/ mol
Determine the molarity of the NaOH solution. During the standardization of a NaOH solution, you record that it takes 23.85 mL NaOH solution to reach the titration endpoint of an aqueous solution co
Calculate the acetic acid concentration in vinegar solution when a 25.00 mL sample of vinegar is titrated with 0.1072 mL NaOH and it takes 41.27 mL NaOH solution to reach the endpoint.
Explain how much energy would it take to totally dissociate the U-235 nucleus (M=235.043923) into its component neutrons and protons?
A mixture of SiO2, NaCL and CaCO3 is separated following the procedure in this experiment. Specify how the following procedural changes would affect the amount of specified substance recovered
Calculate the mass of chlorine that reacted with the calcium when A crucible weighs 35.032 g. A calcium sample weighing 0.401 g is placed in the container.
State the molecular weight of K2Cr207 with the correct number of significant figures and finds its uncertainty.
Calculate the molarity of the sodium ion in the Great Salt Lake when The Great Salt Lake, located in the state of Utah, is approx.
If 4.0 mL of 0.30 M KI is mixed with 1.0 mL of buffer solution, 1.0 mL of deonized water, 3.0 mL of H2O2 and 1.0 mL of 0.02 MNa2S2O3, Discuss the initial molar concentration of I- (at time = 0,
Determine the numbers of moles of I2 are generated in the reaction during the time lapse of the rate measurement?
How this compound could be distilled without decomposition when a liquid compound has a boiling point of 150 C and unfortunately it is not thermally stable and decomposes at 110 C.
Why a Vigreux column should be more efficient than an empty column of the same length. Explain in detail.
Conclude the formula of the hydrate when heated, hydrates lose water and an anhydrous substance is left, when 1.83g of a hydrate of aluminum sulfate was heated, .94g of anhydrous salt was acquired.
Locate the nodal planes and the angular nodes of each of the 3d orbtal of a hydrogenic atom of atomic number Z. to locate the angular nodes, determine the angle that the nodal plane makes with z-ax
Identify the values of the quantum numbers n, l, ml , s, and ms for each of the valence electrons in the ground state of a nitrogen atom?
Explain what atomic terms are possible for the electron configuration np1nd1 and also discuss which terms are likely to lie lowest in energy
A mixture known to contain NaBr and AlBr3 was analyzed by reaction with AgNO3 to precipitate the entire bromide ion as AgBr(s). Calculate the weight percent of AlBr3 in the mixture if a
Write down the IUPAC substitutive name of the major organic product when the 3-methylpentane reacts with molecular bromine (Br2) under the conditions of heat and light.
Explain how would you expect the yield strength of polycrystalline aluminum to compare with the yield strength of a single crystal?
When given the specific heat capacity of ice as 2.01 J/g * C, and the heat of fusion of ice as 6.01 kJ/mol. Calculate the mass of ice that remains when 100.0 g of ice at 0 C is added to the