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What is the net ionic equation of the reaction of \rm ZnCl_2 with \rm NaOH
Write a mechanism for the reaction. Include arrows to show electron flow. Number and write out each step individually.
calculate the number of kilograms of refrigerant that must be evaporated to freeze a tray of 17 one ounce ice cubes starting with water at 15C, Heat capacity of water is 4.184 j/gC deltaH of fussion
The heated iron metal is poured in to a calorimeter with 100 ml of water at room temperature and the calorimeter is closed. The recorded temperature of the calorimeter is 28 degrees C.
Calculate the binding energy for Cf-253 if one atom of this nuclide has an atomic mass of 253.08249. Express your answer in units of picojoules/nucleus where 1 picojoule = 1x10-12 joule.
The first steps in the radioactive decay of 257Uuh involves the rapid and successive emission of 4 alpha particles.
What is the most significant intermolecular attraction in a pure sample of CH3F
Which type of mutation is expressed when a DNA sequence changes from GGA TCA CCG GAA
As pH increases, hydronium ion concentration increases. As pH increases, hydroxide ion concentration increases
A solution is prepared by adding 20.0 mL of 0.100 M KI to 20.0 mL of 0.100 M AgNO3. The potential of the solution is measured with a silver indicator electrode with respect to the saturated calomel
What do salads turn into chemically formula andhow does it get into your bloodstream. What are some healthy foods for cognitive health? Like for concentration and studying. Give me like a list of 15
What would the potential of the iron solution be if it were measured with respect to a saturated silver/silver chloride electrode. With respect to the standard hydrogen electrode
Consider a Ag/AgCl reference electrode that includes a saturated KCl solution as the filling solution. Calculate the activity of Cl- in the filling solution.
The activity of an isolated sample of gas obtained from a basement containing radon-222 was found to be 8 pCi/L. This isotope has a half-life of 3.8 days. If no additional radon-222 entered the samp
What polypeptide would be synthesized from the following template strand of DNA:3' CGG AGA CGG ACG 5'. What is the amino acid sequence that is coded by mRNA sequence 5' AAG GCU AGU GGC 3'
Write balanced equations for the following reactions: preparations fo the semicarbazone of cyclopentanone, preparations of the 2,4-DNP of benzaldehyde, tollen's test for formaldehyde, idoform reacti
Predict the order of melting point, from low to high, for the following compounds, based on intermolecular forces: CaF2 H2O H2S CH2Cl2 N2
What is the pH halfway to the equivalence point for the titration of 0.20 M CH3NH2 with 0.20 M HCl? (Kb of CH3NH2 = 4.4 x 10-4)
Is it believed that two carbon-12 nuclei (mass 12.0000 amu) can react in the core of a supergiant star to form sodium-23 (mass 22.989767 amu) and hydrogen-1 (mass 1.007825). Calculate the energy in
A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode immersed in an NaCl solution, with Cl2 gas bubbled around the e
write the formula and structure of potassium hydrogen phthalate used to standardize the solution of NaOH. calculate the molar mass of KHP
Which plot would not have a slope from which the indicated quantity for the reaction A ? Product(s) could be determined
Use bond energy values to estimate the reaction enthalpy for the formation of ammonia from nitrogen gas and hydrogen gas. Note that N2 contains a triple bond. You will need structural formula.
In some cases a Br-Br bond can be broken by the absorption of photons of light energy. Br-Br bond energy is 192 kj/mol determine the photon energy and the wavelength (in nanometers) associated with