How many grams of water were in the sample
A 45- piece of ice at 0 is added to a sample of water at 20. All of the ice melts and the temperature of the water decreases to 0. How many grams of water were in the sample?
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In a controlled greenhouse at 30.0C and 1.0 atm a crop of seeding tomato plants was found to consume 380 L of carbon dioxide gas during photosynthesis. Assuming 100% yield what a mass of glucose was produced for the growing plants?
How many 10 liter helium balloons could be filled from the tank assuming no change in the temp and a pressure in the balloons of 1.05 atm?
Calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius. assume ideal gas behavior.
Write separate oxidation and reduction half reactions for the procedure used in the test for nitrate ions. 3 NO3-(aq) + 8 Al(s) + 5 OH-(aq) + 18 H2O(l)->.
Water, 1-butanol, and catalytic sulfuric acid, a simple distillation is required. what impurities are removed by this distillation?
If we add CO2 to increase its concentration to 0.25 mol/L, what will the concentrations of all the gases be when equilibrium is reestablished?
A bottle containing 315 g of cleaning solution is used for carpets. If the cleaning solution has a specific gravity of 0.850, what volume of solution was used?
How many atoms is 3.87 moles of lithium? how many molecules is 0.342 moles of phosphorus pentachloride? How many moles of oxygen atoms are in 0.634 moles of nitrogen dioxide?
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