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A nurse administered 4.90 mL of a radioisotope solution that has an activity of 155 μCi/mL . What total dose of the radioisotope did the patient receive?Express your answer to three significant figures and include the appropriate units.
Write an equation showing stereochemistry of starting material and the product,for the reaction of (S)-1-bromo-2-methylbutane with sodium iodide in acetone.what will be the configuration (R or S)of the product
What is the SUM of all of the coefficients in the reaction. 2 C8H18 + 25 O2= 16 CO2 + 18 H2O
IF a black precipitate remaining from the separation of Cr3+ as well as Fe2+ ions from Ni2+ ion is dissolved in HCl and HNO3. A few NH3 is added, followed by several drops of dimethylglyoxime. (1) Explain a colorless solution results.
Calculate the molar enthalpy change ?H~rxn for the dissolution of KNO3 in water. Calculate in the error in ?H~
A student find out the mass percent of Ni is 29.7%, NH3 is 34.4%, and Cl is 35.9% in a compund containing Nickel, ammonia, and chlorine. The empirical formula of the compund is
What is the ion, charge on the ion and hybrid orbitals used by Sn
The subsequent four numbers are estimates of the mass of an object- 4.30 g, 5.82 g, 5.79 g, and 5.47 g. Explain what is the standard deviation to two significant figures
For each of the following orbitals, provide a perspective sketch of the orbital in the Cartesian x, y, z coordinate system. Determine the number of angular nodes and the number of radial nodes in the orbital, and describe where any angular nodes a..
A white solid, soluble in water and alcohol but not in toluene, does not melt when heated to 250°C. However, upon prolonged heating of the solid a colorless gas evolves and the amount of solid "shrinks". The solid appears in the list of pure subst..
Why is sodium bicarbonate used instread of sodium hydroxide for the initial extraction
Question- Arrange the following in order of decreasing reactivity toward nitration. Fully explain and be clear in your answer(PLEASE). (a) acetanilide, (b) acetophenone, (c) bromobenzene, (d) toluene
If 10.00 mL of 0.250 M NaOH solution is added to 100.00 mL of the above original buffer solution (described in part 1 of this problem), what is the new pH of the solution?
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