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For equal moles of CaCl2 and Fe(NO3)3 dissolved in the same volume of distilled water, how do you expect the conductivities of each solution to compare? Explain your reasoning.
Ascorbic Acid (Vitamin C) contains C, H, and O. In one combustion analysis, 5.24 g ... analysis, 5.24 g of ascorbic acid yields 7.86 g CO2 and 2.14 g H2O. Calculate the empirical formula and molecul
A 47.60 g sample of liquid magnesium at 738.0 °C is poured into a mold and allowed to cool to 28.0 °C. How many kJ of energy are released in this proces
If we wish to prepare a 0.50M solution of NaCl how much water must be added to 1.0 mole of NaCl?
1. Consider treating polyenes, ethylene, butadiene, hexatriene, etc., with the one-dimensional particle-in-the-box model. What length polyene (i.e., number of C atoms) is required to absorb light
If the initial temperature of an ideal gas at 2.250 atm is 62.00 °C, what final temperature would cause the pressure to be reduced to 1.750 atm
what is the experimental value of Avogadro's number. dropper pipet calibration= 68 drops/ml number of drops of oleic acid in the monolayer=16 drops diameter of monolayer = 15.0 cm
What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when 32.0 g of NH4NO2 decomposes at 25 degrees C
Describe the difference between an ionic bond and a covalent bond. Give an example of a compound that exhibits ionic bonding. Give an example of a compound that exhibits a covalent bond.
Which of the following compounds would have the lowest boiling point. a) CH4 b) HF C)K2O D) NO2 E) LiCl
What is the final temperature after 336J of heat energy is removed from 25.0g of Water at 19.6C
A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas (n1), and its volume is 50.0 L (v1). If 0.500 mole of gas leak out, and the pressure and temperat
Consider 4.90 L of a gas at 365 mmHg and 20. degrees celisus . If the container is compressed to 3.00 L and the temperature is increased to 40.degrees celisus , what is the new pressure, P2, inside
2CaH18(g) + 9O2(g) > 2Ca2(g) + 18H2O(g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles
My balanced equation is: 3HBr(aq) + Al(OH)3 (s) ----> AlBr3 (aq) + 3H2O(l) My question is: What are the spectator ions
The initial volume of the balloon is 5.00 L, and the pressure is 760 mmHg. The balloon ascends to an altitude of 20 km, where the pressure is 76.0 mmHg and the temperature is -50 degrees celsius. Wh
A sample of ideal gas is in a sealed container. The pressure of the gas is 695 torr, and the temperature is 27 degrees celsius. If the temperature changes to 84 degrees celsius with no change in vol
Determine the balanced chemical equation for this reaction. CaH18(g) + O2(g) > Ca2(g) + H2O(g) Enter the coefficients for each compound in order, separated by commas
What element within the reactants is oxidized in the following equation, and what element is reduced. I2 + 2 Br - ? 2 I- + Br2
The term water of hydration is applied to which to which of the following. A) water molecules required to dissolve a solid B) water molecules associated with ions in solution
For the reaction NH4CL(aq)=NH3(g)+HCL(aq),delta g=58.8 kJ and delta h=86.4 kJ. Is this reaction favored. If so, how. What would be the entropy change for the reaction of 2.04 moles of NH4CL(aq) at 3
Which of the following is true regarding the solubility of gases in liquids? A) solubility always decreases as temperature increases B) solubility always increases as temperature increases
Mass of silver chloride can be produced from 1.03L of a 0.132M solution of silver nitrate: mass of AgCl=19.4g. I figured out part A, could you please help me with part B? B: The reaction described i
Draw the major organic product of the reaction. Indicate the stereochemistry via wedge/dash bonds, including explicit H and D atoms, at the stereogenic center. Omit byproducts such as salts or metha
A student is preparing a sugar water solution to make rock candy. When the student adds some sugar to the solution a large amount of sugar crystallizes