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
1956203
Questions Asked
3,689
Active Tutors
1428349
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Cost-Reduction Initiatives: Identify cost-reduction initiatives and state how you would operationalize them within the healthcare environment
My PICOT question is, in older adults in the hospital setting, how does implementation of a nurse-led fall prevention program compared to a traditional f
Public health informatics uses public health knowledge to broaden the public health knowledge base through learning. improve population health in daily practic
In Brazil people use to take this medicine called "Dipirona". What is it's ingredient and what equivalent options do we have here in Australia?
An ill or injured patient may have suffered from damaged tissues that the cell cycle, including mitosis, won't naturally repair or replace.
Public health informatics is used to create programs such as CDC's Flu View and the COVID.19 Data Tracker to represent data visually.
Cost-Reduction Initiatives: Identify cost-reduction initiatives and state how you would operationalize them within the healthcare environment.