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A solution is prepared by adding 0.100g of solid NaCl to 50.0mL of 0.100 M CaCl2. What is the molarity of the chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL
what is a given and how much water must be mixed with concentrated hydrochloric acid to prepare 50 cubic cm of 6 molar hydrochloric acid solution?
What mass of silver is needed to absorb 50.0 cal of heat if the tempature of the sample rises from 24 c to 36.4 c Specific heat of silver
Gaseous C2H4 reacts with O2 according to the following equation: C2H4(g) +3O2(g) --> 2CO2(g) + 2H2O(g). What volume of oxygen at STP is needed to react with 1.50 mol of C2H4
What potential issues might arise if the pH of your buffer is too close to the pI of your protein of interest? Why might an extreme buffer pH ( 9) be unsuitable?
How would you estimate the number of atoms in a gram of iron, using the mass in grams of an atomic mass unit
What mass of silver bromide will form when 25.00 mL of a 0.0675 M MgBr2 solution is combined with 30.00 mL of 0.100M AgNO3
Which is the electrophilic site in the following compounds. A. CH3Cl B.H3C-O-CH3 with two lone pairs around O C. BH3. What is the nucleophilic site in each of the following molecules.
An electron is confined to a one dimensional box of length L. It falls from the second energy level to the ground state, and releasee a photon with a wavelength of 322 nm
For 1-Chloropropane, draw 3 eclipsed, 2 gauche, and 1 anti conformations. Assume a chloro is the same size as a methyl group.
0.497ml sample of HClO4 has a pH of 0.2251. If 647ml of distilled water was added to the HClO4 solution, what would be the new pH of solution be
What is the length of the side of the unit cell for iron and what is the atomic radius?
It takes 10 microliters of solution to produce a spot 1 cm in diameter. If the co(no3)2 solution contains about 6g co2+ per liter, how many micrograms of co2+ ion are there in one spot
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