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A gas at 763 mmhg and 31 degrees C occupies a volume of 4.98 L. Calculate its volume at STP in g/mole
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of calcium cyanamide are required to react with 417.8 g of water
determine the volume of a cube 10,62 cm, give an example of four sets of measurements that illustrate an imprecise and inaccurate data
A certain substance has a heat of vaporization of 44.76 KJ/mol. At what kelvin temperature will the vapor pressure be 4.00 times higher than
A studet determined the percentage KHP in an impure sample of KHP . a 3.150g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.1) calculate the number of moles of NaOH required for this titration
In an experiment, 0.32 mol H2 and 0.32 mol I2 are mixed in a 1.00-L container, and the reaction forms HI. If Kc = 49. for this reaction, what is the equilibrium concentration of HI?I2(g) + H2(g) 2HI(g)
Elements in the first short period are limited by the octect rule whereas those in the higher period can expand their valence shells. Describe what this means, account for this phenomenon and give an example of each.
A 250 gram sample of water at the boiling point had 64.0 kJ of heat added. How many grams of water were vaporized. Heat of vaporization for water is 40.6 kJ/mole
What is the rate law and rate constant for the decomposition of HF at 25 degrees Celcius
How would I name the organic compound with a 5 carbon chain, one double bond between 3,4 carbons and 2 Br groups on the 2,4 carbons
What is the maximum possible number of electrons in a ground-state carbon atom that have ml = 0
Get a glass and fill it with cold tap water. Observe the water in the glass as it warms to room temp. What effect does temp have on the amount of gas that can remain dissolved in water? Can you use this information to explain boiling?
Calculate the weight of precursor salt needed to make 500 ml of a 2 M aqueous solution of the metal ion from each salt.
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