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calculate the [OH] in a 1.0M NaOH solution and in a buffer containing 1.0 M NH3 and 1.0 M NH4Cl. Briefly comment on the differences in these two concentrations.
if you have 380.00 ml of water at 25.00 degrees celcius.and add 130 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 5.17 moles of CO2 react completely?
What was the volume occupied by the sample under the new conditions - Determine what volume of 3.00M HCl in liters is required to react
what statement about alcohols, ethers, and amines is not correct? a- ethyl group is represented by C2H5 b- CH3 is known as methyl group c- there are primary, secondary, tertiary classifications for alcohols
There are several slip systems that can be active in olivine (orthorhombic). Dislocation glide is easiest at high temperature in the (010)[001] slip system
a student titrates 0.738 grams of an unknown solid, weak acid with 0.1027 Molarity NaOH. What is the molecular weight of the unknown solid, weak acid?
The density of helium gas at 273K and 1.00 atm is 1.76E-4 g/mL. What is the volume (in L) of a balloon containing 9.24 g of helium under the same conditions?
Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg. (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)
The lipid formed an emulsion when mixed with oil and water, reacted with aqueous sodium hydroxide to form soap, did not react with bromine, and gave a positive result for the ammonium molybdate test. Describe a lipid structure consistent with thes..
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
3.24 x 10-3 g of a protein was dissolved in water (total vol. of 5.00 mL). Given the osmotic pressure of the solution was 1.50 x 10-3 atm and the temperature is 298.0K, calculate the molar mass of the protein.
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
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