Calculate the mass of one atom of helium
Calculate the mass of one atom of helium (atomic mass=1.01 amu). Calculate the wavelength of this atom if it is traveling at .8c
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Determine the lime and soda ash dose in mg/L as CaCO3 to soften the following water to a final hardness of less than 120mg/L as CaCO3.
Ca(s) + Cl2(g) = CaCl2(s) ΔH = -796 kJ mol-1 What will be the enthalpy change (to 2 significant figures) for the reaction when 4.0 g of calcium metal reacts with chlorine gas at constant pressure? The relative atomic mass of calcium is 40. &Del
A certain mass of oxygen was collected over water when potassium chlorate was decomposed by heating. The volume of the oxygen sample collected was 720. mL at 25.0 oC and a barometric pressure of 755 torr. What would the volume of the oxygen be at
Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C · g.
Calculate the mass of nitrogen dissolved at room temperature in an 80.0 {rm L} home aquarium. Assume a total pressure of 1.0 {rm atm} and a mole fraction for nitrogen of 0.78.
In writing the Lewis Structure, when we do not have to worry about electrons distribution in each atom alone, and when we have to assign to each atom its particular no of valence electrons?
How much heat will be released when 6.44 grams of sulfer reacts with excess oxygen according to the following equation? Is this reaction endthermic or exothermic? 2S+3O2--> 2SO3 H= -791.4kj
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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