Temperature of water and measuring amount of gas produced
What are the variables (dependent, independent and control) in this experiment?
Ca+2H2O----->Ca(OH)2+H2
Changing the temperature of water and measuring the amount of gas produced.
And how can I explain the aim of the experiment and hypothesis?
Expected delivery within 24 Hours
One hundred grams of water is saturated with NH4Cl at 50°C. According to Table G, if the temperature is lowered to 10°C, what is the total amount of NH4Cl that will precipitate?
In an experiment, 201 mL of wet H2 is collected over water at 27 oC and a barometric pressure of 733 torr. The vapor pressure of water at 27 oC is 26.74 torr. The partial pressure of hydrogen in this experiment is_______atm.
Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product smells vile. Calculate the standard enthalpy change for this reaction using standard enthalpies of formation.
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC.
A patient needs to take 875 mg of ibuprofen twice daily. The pills in the bottle are each 250. rm mg. How many pills does the patient need to take each time she wants the 875 mg dosage? Assume that these pills are scored and can be cut in half if
The heat released by this reaction is sufficient to ignite paper. How much heat is released when 27.5 g of calcium oxide reacts?
Suppose a solution contains aqueous Hg2(NO3)2 . Write complete ionic equation to show the reaction of aqueous Hg2(NO3)2 with aqueous sodium chloride to form solid Hg2Cl2 and aqueous sodium nitrate. Express your answer as a chemical equation.
A student mixed 75.0 mL of water containing .75 mol HCL with 75.0 mL of water containing .75 mol of NaOH at 25C in a foam cup calorimeter. The temperature of the resulting solution increased to 35C. How much heat in kilojoules was released by this
1944232
Questions Asked
3,689
Active Tutors
1421116
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
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