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conversion of 0.75 g of liquid water to steam at 100 celcius requires 1.7 kJ of heat. calculate the molar enthalpy of evaporation of water at 100 celcius?
How many mL of .150M bacl2 are needed to react with 35mL of .200M na2so4? How many grams of BaSO4 will be formed?
A 48.1 mL sample of gas in a cylinder equipped with a piston is warmed from 22 degrees C to 90 degrees C. what is the volume at final temperature?
what effect does changing from room temperature to 37 have on the activity of the enzyme? 5 what does copper II sulfate to do the enzyme
If equal volumes of 0.15 NaOH and 0.10 NaH2PO4 are mixed what type of system is formed? A) Buffer Ka2 B) amphiprotic C) Buffer Ka3 D) strong base
If the same amount of heat is added to identical masses of each of these substances, which substance attains the highest temperature? (Assume that they all have the same initial temperature.)
Consider a piece of gold jewelry that weighs 9.78 g and has a volume of 0.680 cm3. The jewelry contains only gold and silver, which have densities of 19.3 g/cm3 and 10.5 g/cm3, respectively.
Write structures for all the structural isomers of double-bonded compounds with the molecular formula C5H10. Of the compounds
Question1. Describe the movement of gas particles. ; Question2. Compare the shape and volume of a solid and a gas.; Question3. Gases are easily compressed.
The vapor pressure of water at 26 degrees C is 25.209 mmHg. How many moles of gas were collected?
A 28.0-g sample of water at 290. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Explain in detail why these bacteria don't begin to excrete this metabolite before using up the phenylalanine in the medium.
The cooling water enters the condenser at 70°F and its temperature cannot increase more than 25°F as it passes through the condenser.
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