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Problem- Calculate the pH of a solution in which 1.3 g of potassium oxide is dissolved in enough water to make up 1.750 L of solution. Hint: first write a balanced equation that describes the reaction that occurs.
Write solution with complete explanation of required steps
Calculate the final temperature of 204 mL of water initially at 35 degrees C upon absorption of 18kJ of heat.
If your unknown is soluble in water as well as doesn't produce bubbles with 5% NaHCO3 what steps would you follow to find out if your unknown is an amine
What volume of gas (H2 and O2 combined) at STP is released by decomposition of 93.405g of H2O? 2H2O (l) 2H2(g) + O2(g)
A polypeptide chain is a linear polymer of L-amino acids. when a polypeoptide chain adopts its mature 3D structure, it does so because of the van der Waals intermolecular forces of hydrogen bonding, dispersion forces, dipole/dipole and ion/dipole,..
A solution is prepared by diluting 0.0342 mol acetic acid with water to a volume of 8.39 L. What is the pH of the solution
Using the Balmer-Rydberg equation, calculate the wavelength in nm, when n=2 in the Lyman series. (R=1.097*10^-2 nm ^-1
Question- A 0.610 g sample of aspirin prepared in the laboratory is dissolved in 100% ethanol, diluted with water and tite ayes to the phenolphthalein endpoint with 25.0ml of a 0.135 m naoh solution
Solid potassium nitrate is decomposed by heating to give potassium nitrite and oxygen gas. If 1.00g of potassium nitrate is heated, what is the milliliter volume of oxygen gas at STP
The volume of a mass of gas is 300ml at 25 degree celcius and 685 torr.
Assuming no O2 dissolved in the water over which it was collected, calculate the volume of O2 collected under standard conditions (O degress Celsius and 760 mm Hg).
Problem- If 3.49 moles of an ideal gas have a pressure of 8.56 atm, and a volume of 64.53 L, what is the temperature of the sample
Subsequent to the sample has been dissolved in hot water and then cooled explain why would one scratch the sides of the flask?
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