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Problem- Give the chemical equation (including phases) that describes the combustion of butene, C4H8(g)Show all work, use additional paper if necessary.
a solution containing ethylene glycol and water has a vapor pressure of 7.88 torr at 10oc. pure water has avapor
Consider the figure that shows the distillation apparatus. Describe the practical reasons behind the direction of the flow of water through the condense. It will not let me upload the picture of the figure. It keeps saying that there is an error? ..
(a) What is the molecular weight of the drug? (b) What is the boiling point of the solution? (c) What is the osmotic pressure of the solution?
A student determines the mass of a bone to be 23.3751g. A 50 mL graduated cylinder contains 30.3 mL of water. When the bone is placed in the water-filled cylinder,
Some solid PbI2 is placed in distilled water and allowed to come to equilibrium. The equilibrium concentration of I- was found to be 0.00782 M. What is the equilibrium concentration of Pb2+ in the solution
What weight of glucose in grammes is required to make 675 ml of a 750 mM solution. Glucose Mr = 180.16
at a certain temperature 0.200 moles of no 0.300 moles of cl2 and 0.500 moles of clno were placed in a 25.0 l vessel
Check all of the samples that will have ion dipole forces. You may want to review your notes in chapter 4 to make sure you understand the difference between strong electrolytes and non-electrolytes. HCl (aq) NH4Cl (aq) H2O (l) CO2 (g) KCl (aq) CH3..
Write a complete mechanism of reaction of 2,4-dinitrophenylhydrazine with acetaldehyde.
A 50.0 mL sample of 0.155 M HNO2(aq) is titrated with 0.100 M NaOH(aq). What is the pH of a solution after the addition of 25.0 mL of NaOH. (Ka of HNO2 = 4.5 ´ 10-4)
13.00 g of sodium surface is dissolved in water to make a solution. What volume of solution in L is produced if the amount of concentration is 0.45 mol/L
A solution is prepared by adding 34.5 g of Ca(OH)2 and 15.l3g of KOH to 1500ml volumetric flask and adding water to the mark. What is [OH-],[H30+],[pH]
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