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50 grams of sodium chloride to 500 grams of water, what will the freezing points be of the resulting solution? kf(H2O)=1.86 C/m
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For the molecule allene, H2 C = C = CH2, give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?
1. Consider the reaction when aqueous solutions of nickel(II) bromide and sodium carbonate are combined. The net ionic equation for this reaction is: 2. Net ionic equation for the reaction that occurs when aqueous so ...
What is the chemical name for S6O and what is the chemical name for S7O2?
How much will the temperature change when 3.0 g of tooth enamel (specific heat = 0.18 cal/g C) absorbs 0.80 cal of heat energy?
A student weighed out 1.74 grams of sodium hydroxide pellets and added them to 48.0 grams of water in a calorimeter. Extrapolating back to the time of mixing yielded a temperature change at the time of mixing equal to 9. ...
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
Nitro glyerine is an explosive used by the mining industry. It detonates according to the following equation: 4C 3 H 5 N 3 O 9 (l)→ 12CO 2 (g) + 6N 2 (g) +10H 2 O(g) + O 2 (g) What volume is occupied by the gases produce ...
2K3PO4(aq)+3MgCl2(aq) → Mg3(PO4)2(s)+6KCl(aq) The molecular equation you determined in Part B is shown above for your convenience. Examine each of the chemical species involved to determine the ions that would be present ...
You react 100.0 ml of a 1.01 M HBr(aq) solution with 99.1 mlof a 1.05 M KOH(aq) solution. The density of each solution is 1.04g/ml. The heat capacity of the calorimeter is 7.0 J/C. You observea ΔT of 6.3 C. Assume a 4.18 ...
15 grams of NaCl is dissolved completely in a beaker containing 200mL of water. What is the Na+ concentration in moles/liter in the final solution?
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