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What is the density of gallium in grams per cubic centimeter at 25 C if a 1.00 cube has a mass of 0.2133 ?
Suppose that an excess of propane, C3H8 burns in 320 g of O2. How many moles of H2O will be formed? C3H8 + 5 O2 → 3 CO2 + 4 H2O
A 100 mm diameter silicon wafer is oxidized completely. What is the thickness of the resulting SiO2 wafer? The molecular weight of Si is 28 g/mol and of SiO2 is 60 g/mol.
A 1 L solution of 1.5 M acetic acid and 1.5 M sodium acetate has a ph of 4.74. 10 ml of 0.1 M NaOH were added to the solution followed by the addition of 50 ml of 0.02 M HCl.
Uses of de-Broglie equation in electromagnetic specra - Find the mass of oxygen and decomposed potassium chlorate along with the pressure in the glass bulb.
The total mass of pure metals produced = 0.4684 grams. compute the mass percent of CuCl2, and AgNO3, FeCl3 in the original mixture.
A car travels at 58.0 miles per hour and gets 10.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.00 hour trip.
Compute the expected change in temperature for 1.7 grams of ammonium nitrate NH 4 NO 3 dissolved in 50.0 mili litres of water H 2 O.
7.5g of ammonia at STP is heated to a temperature of 25C and simultaneously compressed to a volume of 8.0L. Calculate the new pressure of the gas.
What substance is in excess? D) How many grams of the excess reactant is leftover (remaining) after the reaction stops
Using the given reduction potential determine what is the voltage for these given electrochemical cell
Determine the boiling point of a 1.5m aqueous solution of fructose.
Bonding in some solids does not fit neatly into one of the four categories. Explain why the bonding in Na2CO3 is not purely ionic.
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