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Calculate the moles of H2 present in this gas sample. . 9. 1.0 gram of water at 25 C is heated to 100 C, at which point it boils at an atmospheric pressure of 1 atm and is vaporized. (Assume the density of water is 1.0, which means the volume of liquid water at 25 C is 1.0 mL). A. What is the volume of water vapor produced? B. What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?
What is the volume of a balloon that contains 34 moles of calcium bicarbonate?
What is the pH of a buffer solution containing 0.155 mol dm-3 of benzoic acid and 0.315 mol dm-3 sodium benzoate.
Calculate the amount of heat liberated (in kJ) from 417 g of mercury when it cools from 64.0°C to 12.0°C.
dissolved .31 grams of KHP in 25 ml of water and it required 15.5ml of NaOH to reach end of titration, how many moles of KHP were originally present before the addition of the NaOH?
You are told to buy 5 packages of deli turkey, 3 loaves of bread and one jar of pickles. Our question is: how many sandwiches can we make?
How many moles of bromine will react with 0.0500 mole of C2H2 in the reaction C2H2 + 2 Br2 -> C2H2Br4?
How much heat is needed to melt 22.4g of ice at zero degrees celcius to form liquid water at zero degress celcius?
Draw a doagram to show the changes in potential energy that occur from the rotation around the C1-C2 bond of 1-bromopropane
One of the lines of the hydrogen line spectrum has a wavelength of 434.1 nm. It is known that all of the visible lines of the hydrogen spectra result from an electron
if you used 8900 kilojoules you expend in energy in one day to heat 49000g of water at 19 C what would be the rise in temperature.
If the pressure exerted by ozone in the stratosphere is 3 x 10^-3 and the temperature is 247 , how many ozone molecules are in a liter?
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