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Hydrogen and oxygen react vigorously to form water. If 120 hydrogen molecules are reacted with 200 oxygen molecules in a closed container define how many hydrogen, oxygen and water molecules will remain after the reaction is complete?
0 hydrogen + 80 oxygen + 120 water
20 hydrogen + 0 oxygen + 100 water
80 hydrogen + 0 oxygen + 400 water
0 hydrogen + 0 oxygen + 400 water
0 hydrogen + 140 oxygen + 120 water
How many grams of sodium formate, NaCO2H are needed to prepare 100 ml of a formic acid, sodium formate buffer
Draw the structure for the major product formed when cyclohexanone reacts with each of the following- hydrazine, then hot, fused KOH
If the sample contains a combined total of 1.75 grams per mole and has a total mass of 51.0 grams, what are the percentages of CO2 and Ne in the sample by mole?
The formula of a complex formed by a reaction such as M + nX = MXn can be determined by the method of continuous variations. The absorbances of a series of solutions of varying composition are measured at the wavelength at which the complex shows ..
The U.S Food and Drug Administration (FDA) recommends the you consume less than 2.4 g of sodium per day. What mass of sodium chloride (in grams) can you consume and still be within the FDA guidelines
A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0% HNO3 by mass. What mass of HNO3 is present per liter of solution
The likely formula for the compound is Ni(N2H4)2(ClO4°2 where the hydrazine is a neutral ligand and the nickel is +2. If 10g of this compound reacted completely into its component elements, how many liters of gas would be produced at 298K and 1atm..
Given the values of So given below in J/mol K, calculate the value of DSo in J/K for the combustion of 1 mole of ethane to form carbon dioxide and liquid water.
Since there are that many Moles of KOH there must be equal moles of the acid. So 4.14*10-3moles/.05L= X M of initial acid== .0828M?
Calculate the pH of this solution. B) A 150 mL of 0.15 M NH3 is slowly added to 25 mL of 02 M HCl. What is the pH of the resulting solution
a articular brand of beef jerky contains 0.0552 sodium nitrite by mass and is sold in an 8.00 oz bag. what is the mass
Explain the standard molar free energies of formation of NO2(g) and N2O4(g) at 25 degrees C are 51.840 and 98.280 kJ/mol respectively. Explain what is the value of Kp for the following equilibrium at 25 degrees C 2NO2(g)= N2O4(g)
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