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Consider the following generic chemical equation. A+3B=C What is the limiting reactant when each of the following amounts of A and B are allowed to react? 1)1mol A, 4mol B 2)2mol A, 3mol B 3).5mol A, 1.6mol B 4)24mol A, 75mol B
A student wants to prepare exactly 1000 mL of a 0.500 M aqueous potassium hydroxide solution. What mass of potassium hydroxide should the student dissolve in the solution?
1. calculate the four values of ph poh h and oh- for a 0.100 m of hcl.2. calculate the four values of ph poh h and oh-
gasohol is a fuel containing ethanol c2h5oh that burns in oxygen o2 to give co2 and water. how many moles of o2 are
a sample of steam with a mass of 0.550 g and at a temperature of 100c condenses into an insulated container holding
In a titration, 25.0 mL of 0.154 M HCl was added to 45.0 mL of 0.213 M ammonia (NH3). What is the pH at this point? (Kb of NH3 = 1.8 × 10-5 )
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
A 20 degrees Celsius, the solubility of potassium nitrate is 30g in 100g of water. A 35 gram solution of potassium nitrate in water was determined to contain 10 grams of KNO3
A photomultiplier tube detects photons by amplifying the current generated by the photoelectric effect. Which metal, lithium, calcium, aluminum or gold would you choose if you were trying to make a photomultiplier tube sensitive to the largest por..
calculate the weight and number average molecular weights as a function of conversion for the linear polycondensation
What is the concentration of phosphate ions in this saturated solution? options: 0.00240 M 0.0216 M 0.00360 M 0.00720 M
XH2O is heated and the mass of water lost is 1.42 g. Determine the formula of thehydrate.
Which of the following would be expected to have a tetrahedral shape?
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