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Question- Suppose you add 18 drops of 0.1 M HCl to 19 drops of 0.1 M NaOH. Phenolphthalein has been added to the HCl. What color do you suspect the resulting solution will be? Why?
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a sample of an ethanol-water solution has a volume of 54.2 cm3 and a mass of 49.6g. what is the percentage of ethanol in the solution?
The pressure of hydrogen fluoride in Agent P's lab is lower than expected and rises more quickly as the temperature is increased than the ideal gas law predicts. Suggest an explanation. Are we dealing with a real or ideal gas
The simplest formula of the compound is NO2 Which could be the molecular formula of the compound?
for the reaction 2a b --gt 2c if b is initially 4.0m and 2min later is 3.0m what is the rate of appearance of
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
The boiling point elevation of an aqueous sucrose solution is found to be 0.39*C. what mass of sucrose molar mass 342.30 g/mol would be needed to dissolve in 500.0g of water? Kb (water) = 0.512*C/m
How many joules of heat are required to heat 143 g of aluminum from 55.0 oC to 66.5oC?
Determine the molar solubility of CuCl in a solution containing 0.050 M KCl. Ksp (CuCl) = 1.0 × 10-6. Answer A. 1.0 × 10-12 M B. 5.0 × 10-7 M C. 2.0 × 10-5 M D. 1.0 × 10-3 M E. 0.050 M
comment on burning diesel fuel as a sustaniable practice both in terms of how things have improved and in terms of
The piece of iron with a mass 102.9g was submerged in a graduated cylinder filled with water. The initial level of water was 20.0 ml. The density of iron is 7.86 g/ml.
Use molar volume to solve each of the following at STP: a) the volume (L) occupied by 2.50 mol of N2; b) the volume (mL) occupied by 0.420 mol of He; c) the number of grams of neon contained in 11.2 L of Ne gas; d) the number of moles of H2 in 162..
In the reaction MnO4- + 8H+ + 5e- ⇔ Mn2+ + 4H20, the manganese in 3.95 grams of KMnO4 is reduced to Mn2+. How many coulombs of charge must have been transferred to the permanganate ion.
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