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Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) --> Ca(OH)2(s). In a beaker, 1.45 g of H2O is added to 1.50g of CaO. How many grams of Ca(OH)2 is expected to be formed?
In the reaction of sodium benzoate with hydrochloric acid to form benzoic acid, if 1.53 g of benzoic acid were formed, how many mmol of sodium benzoate
what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25'C.
Calculate the number of molecules inside the cell, which is 3.6um long and 1.2 um in diameter.
Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+H2SO4(aq) 2HCl(g)+Na2SO4(s) How many grams of HCl can be prepared from 2.00 mol H2SO4 and 150g NaCl.
A 270 mL stock solution contains 0.9 M Ca(CN)2. When 103 mL of the stock solution is diluted to 130 mL, how many moles of CN- ions will be contained in the dilute solution?
The lead contained in a 0.2000 g sample is precipitated as PbCrO4. The precipitate is filtrated, washed and re-dissolved in acid to give lead ions and dichromate.
Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.79 g of adrenaline in 33.5 g
What percent of bacetrial cell wall will be hydrolyzed at the end of 3 minutes assuming product formation is in 1st order of reaction? b) What will be a concentration of hydrolyzed product at the end of 4 minutes?
draw Lewis Structures for the following FIVE elements.
Determine the theoretical and percent yields of ethanol if 684 g sucrose undergoes fermentation and 349 g ethanol is obtained?
What is the mole fraction of methane in the mixture? (Assume that the water produced by the combustion is in the gaseous state.)
A sample of water is collected over water at a total pressure of 616.8 mmHg at 300 C. The vapor pressure of water at 300 C is 31.8 mmHg.
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