Caffeine molecules
How many grams of caffeine (C8H10N4O2) are present in one cup of coffee that contains 8.98 × 1021 caffeine molecules?
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A 155 gram sample of copper was heated to 150 degrees Celsius then placed into 250 gram of water at 19.8 degrees Celsius. Calculate the final temperature of the mixture.
A 12 kN force is exerted on a rocker arm. The moment of inertia (I) of the crosssection with respect to the neutral-axis is 43.3x10-9 m4.
A spring has a natural length of 26 cm. If a 26 N force is required to keep it stretched to a length of 30 cm, how much work W is required to stretch it from 26 cm to 37 cm? (Round your answer to the nearest hundredth.)
How many liters of water can be made from 55g of oxygen gas & an excess of hydrogen at a pressure of 12.4 atm & a temp of 85 degrees C?
What is the value of the equilibrium constant for the neutralization of acetic acid with sodium hydroxide? The Ka for acetic acid is 1.8 x 10-5.
A reaction has an activation energy of 123 kJ/mol and a rate constant of 0.200 s-1 at 311K. At what temperature will the rate constant be double that at 311 K?
Suppose that 3 J of work is needed to stretch a spring from its natural length of 26 cm to a length of 42 cm. (a) How much work W is needed to stretch the spring from 39 cm to 43 cm? (Round the answer to the nearest hundredth.)
When silver metal reacts with bromine at 298 k, a spntaneous redox reaction takes place. calculate E initial and calculate the wquilibrium constant.
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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