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1. What ions are present in an aqueous solution of NaOH?
2. What ions are present in an aqueous solution of NiCl2?
3. Write a complete, balanced equation for this double displacement reaction. (Hint: the solid is a compound of Ni ions and hydroxide ions.) Don't write the net ionic equation but rather the complete form with neutrally charged compounds with all of the atoms.
The freezing temperature of ethanol is -114.0 oC, the density is 0.789 g/cm3, and Kf is 1.99oC/m. Calculate the new freezing point when 0.100 L of methanol
The specific heat of water is 4.184 J/gxC. Assume the density of th water is 1.00g/mL and there is no heat lost or gained by the calorimeter.
Ethylene epoxide (C2H4O) decomposes to form CH4 and CO. Small quantities of H2 and C3H6O are also formed. The following reaction mechanism has been proposed:
metal a was determined to be 95extracted into methylene chloride with dethizone at ph6 when equal volumes of aqueous
A sample of steam with a mass of 0.550 g and at a temperature of 100C condenses into an insulated container holding 4.50 g of water at 6.0C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
We store fats as triacylglycerides and not free fatty acids. We do this because it would change our pH and the osmotic pressure of the adipose cells.
what volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to make 5.3 L of an NaOH solution with a pH of 10.0
A system at equilibrium contains I2(g) at a pressure of 0.16 atm and I(g) at a pressure of 0.20 atm. The system is then compressed to half its volume
The 1.000 L flask was filled with gas from the experiment at an atmospheric pressure of 30.57 inches of Hg and a temperature of 24 degrees C.
A 20.0 mL sample of vinegar, which is an aqueous solution of acetic acid, , requires 19.5 mL of 0.700 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
What is the pH of the solution after the addition of 80.0 mL of 0.0500 M NaOH(aq) to the buffer. What is the pH of the solution after the addition of 10.0 mL of 1.0 M HNO3(aq) to the initial buffer
Indicate whether the solubility of carbon dioxide gas in water increases or decreases for each of the following. 1.) The temperature of the solution increases
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