Molecular weight of the unknown
The solvent benzene has a normal freezing point of 5.5 C if 1.00 g of an unknown dissolves in 20.0 g of benzene gives a solution with a freezing point of 4.2 what is the molecular weight of the unknown?
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The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain after 7,500 years?
HCL acid solution is standardized using 0.502g of sodium carbonate. Find the molarity of the acid if 30.5mL are required for the titration.
Assume that we have a 100.g sample of this compound. What are the subscripts in the empirical formula of this compound?
If the reaction Fe2N (s) + 3/2 H2 (g) -> <- 2Fe(s) + NH3(g) comes to equilibrium at a total pressure of 1 atm, analysis of the gas shows that at 700 K and 800 K pNH3/pH2 = 2.165 and 1.083, respectively, if only H2 was present initially with
Calculate the specific heat of molybdenum metal in {rm J/(g cdot ^circ C)}. The specific heat of water is 4.184{rm J/(g cdot ^circ C)}.
What is the hybridization of the central atom in SO2Cl2?
Which one of the following cell combinations would best be used to set up a cell with a potential of 0.50V by adjusting the half-cell ion concentrations?
Metallic aluminum reacts with at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent. Find the theoretical yield (in grams) of manganese from the reaction of 260 of this mixture.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult