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Q. What volume of 0.200M Hydrochloric acid must combined to 250mL of 0.300M C8H7NaO3 to produce a buffer of solution with a pH of 3.37?
Q. Compute the pressure of 2.00 gram of hydrogen gas at 16.0 0 C with a volume of 3.54 liters.
How many gms of H2O must be combined to 519.5 gms of methanol at 20°C to have an osmotic pressure of 408 mm of Hg? Methanol density = 0.8921 g/mL.
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].
Compute the molarity of a solution prepared by dissolving 15.2 grams of CaCl2 in H2O with a solution volume equal to 5.00 x 10² millimeters.
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
Determination of the partial pressures of the gases - Find the partial pressure of each of these gases in the final product mixture.
Find the rate of the reaction - What is the rate of the reaction?
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
We are asked to explain the pH and how to find hydrogen ion concentration - Find the pH of an acidic substance of your choice.
Find the volume of oxygen gas required to react completely with iron and Calculate the volume of oxygen gas at STP that is required to completely react with 61.0 g of iron.
A rectangular beam made using concrete with f'c = 6000 psi and steel with fy=60000 psi has a width b= 20 in. The concrete modulus of rupture fr=530 psi. The elastic moduli of the concrete and steel are, respectively,
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