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To make a 325 mL solution of 0.150 M NaCl, how many grams of NaCl need to be weighed out?
Calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate( Ca(NO 3 ) 2 ) to form sodium nitrate (NaNO 3 ) and calcium phosphate?
Write down the Empirical Formula if aA Compound Is 21.20% nitrogen, 6.06% Hydrogen, 24.30% sulfur , And 48.45% Oxygen?
What was the volume occupied by the sample under the new conditions - Determine what volume of 3.00M HCl in liters is required to react
Magnesium has three isotopes, Mg-24, Mg-25, and Mg-26. The percentage abundance of each in order is 78.70%, 10.13%, 11.17%.
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m
Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel.
If a solution containing 17.76 g of mercury(II) perchlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfate, how many grams of solid precipitate will be formed.
How long would it take for 1.50 mol of water at 100.0 0C to be converted completely into steam if heat were added at a constant rate of 19.0 J/s?
a steel sphere has a radius of 1.58in. If this steel sphere has a density of 7.88g/cm3, what is the mass of the sphere in grams?
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
What mass of this substance must evaporate in order to freeze 170 of water initially at 23? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
A situation with an industrial input of arsenic directly into the lake at 10kg/Day. The lake volume is 1.2 x 10^8 m^3, and the average depth is 10m.
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