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Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 8.30 moles of magnesium perchlorate Mg(ClO4)2
Determine the molecular formula of the compound at the temperature of 120 degrees celsius and Pressure 750 mm hg, if 1 l of the gaseous compound weighs 2.3 grams? '
if a container can hold 2.0 gallons and 5.0 liters of water are added, how many more liters of water can be added to completely fill the 2.o gallon container? [ 1 gallon = 4 qts]
gaseous hydrocarbon required 50 mL of oxygen for complete combustion. If 30 mL of CO2 gas were evolved, what is the molecular formula of the hydrocarbon?
When 25mL of a 120mL stock solution containing 2M AlCl3 is diluted to 80mL, how many moles of Al3+ are in the new solution.
How many milliliters of a 0.56 M HCl solution do you need to obtain 0.0046 mol of HCl?
Write equations for the half-reactions that occur in the electrolysis of molten potassium bromide.
A Sprinter set a high school record in track and field, running 200.0 m in 21.4s. What is the average speed of the sprinter in kilometers per hour? Express your answer numerically in kilometers per hour.
For the following aqueous reaction complete and balance the molecular and write a net ionic equation for copper (II) nitrate + hydrosulfuric acid
urea at 25c are 0.605 atm and 0.245 amt respectively. calculate the van't hoff factor for the CaCl2.
Calculate the number of grams of sulfuric acid in 0.460 of battery acid if the solution has a density of 1.27 and is 37.8 sulfuric acid by mass.
Calculate the percent ionization of 0.10 M butanoic acid (Ka = 1.5 x 10-5) in a solution containing 0.050 M sodium butanoate.
At 7645 oC, Keq = 1.12 for the reaction: 1/2 N2(g) + 1/2 O2(g) ? NO2(g) (a) What is the value of Keq for the reaction NO2(g) ? 1/2 N2(g) + 1/2 O2(g)? Keq = . (b) What is the value of Keq for the reaction N2(g) + O2(g) ? 2 NO2(g)? Keq = . (c) What ..
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