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a student titrates 0.738 grams of an unknown solid, weak acid with 0.1027 Molarity NaOH. What is the molecular weight of the unknown solid, weak acid?
A proton in a linear accelerator has a de Broglie wavelength of 144 pm. what is the speed of the proton?
An automobile gasoline tank holds 35 kg of gasoline. When the gasoline burns, 88 kg of oxygen is consumed, and carbon dioxide and water are produced.
In the combustion reaction of 149 g of propane with excess oxygen, what volume of carbon dioxide if produced at STP?
How many moles of sulfate ions (SO2-/4) are present in 1.6 moles Al2(SO4)3
25 mL of 0.3 M HCl are diluted to 500 mL. What is the molarity of the resulting HCl solution.
What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C,the volume of the gas is 361 mL. To what temperature must the gas be heated to occupy a volume of 492 mL.
If the methane contained in 4.00 L of a saturated solution at 25 C was extracted and placed under STP conditions, what volume would it occupy?
Normally the alkaline earth carbonates (MCO3; M = Mg^2+, Ca^+2, Sr^+2, Ba+2) are insoluble in water. Why would the method used in this experiment work for calculating the molar mass of the alkaline earth? How would the calculations have to be cha..
Determine the new volume of a 1.3 L balloon if it is taken from room temperature that is twenty five degree celsius and placed into a freezer at the temperature of -11.5 degree celsius.?
If the methane contained in 3.00 L of a saturated solution at 25 was extracted and placed under STP conditions, what volume would it occupy.
The state function to describe a particle on a sphere is given as Ψ=2sin^2(?)+cos?(θ).calculate the expectation value of its angular momentum about the z-axis, energy and the square of the total angular momentum L^2.
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