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Question- Calculate the molarity of the resulting solution if 25.0 mL of 1.50 M HCl solution is diluted to 500 mL
Please illustrate work as well as walk me during the problem so that I can follow and understand it.
the solubility of a gas in water depends on a nature of the gas b temperature c pressure of the gas d all of the
where a is constant and -infinity
How much heat is required to warm 1.3kg of sand from 30 degree Celsius to 100 degree Celsius? (According to my notes- specific heat capacity of sand is .84 J/(g x Celsius)
when two grams of sodium hydroxide were dissolved in 149 grams of h2owater in a calorimeter at twenty four degree
Some second-order reaction has an activation energy of 1,151 kJ / mol. This reaction has a constant speed of 0.0796 M-1s-1 to 737 ° C. The temperature at which the reaction will have a constant speed of 0.0815 M-1s-1
What is the length of a cubic lose-packed unit cell of an element, in picometers, if the atomic radius is 187.0pm
calculate the molality, molarity, and mol fraction of HF in a solution made by dissolving 5.0g of HF in 250g of water
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the weak acid HClO2 (aq) and the strong base NaOH (aq)
Problem- Use the henderson-hasselbalch equation to calculate the pH of a buffer containing .250 M sodium propionate and 0.350 M propionic acid. The Ka of propionic acid is 1.34 *10^-5.
A 28.6 g sample of ethylene glycol, a car radiator coolant, loses 700. J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)
A) Colloids are homogeneous solutions. B) A true colloidal particle will not settle out of the dispersing medium. C) Colloidal particles can usually pass through a semipermeable membrane.
A 100-watt lightbulb radiates energy at a rate of 100 J/s.(The watt, a unit of power, or energy over time, is defined as 1 J/s.) If all of the light emitted has a wavelength of 525 nm, how many photons are emitted per second
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