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A solution is prepared by dissolving 13,0 g of KOH in enough water to make 105.0 mL of solution. What is the molarity of this solution?
Which solution will have the larger change in its freezing point: a 0.75 molal solution with water as the solvent or a 0.75 molal solution with naphthalene as the solvent. Calculate delta T for water and delta T napthalene
a weather balloon at earths surface has a volume of 3.9 l at 275 k and 775 mm hg. if the balloon is released volume
A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.
Titrated with 0.10 M HBr. Determine the pH of the solution after the addition of 400.0 mL HBr.
describe the components and internal systems that enable the dental porcelain furnace to operate successfully.discuss
Problem- Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element.
A 5.45 g sample of a weak acid with Ka = 1.3 times 10^ - 4 was combined with 5.20 mL of 6.00 M NaOH and the resulting solution was diluted to 750 mL. The measured pH of the solution was 4.15
What are the general methods for preparation of cycloalkane
What's the name of the product when 2(4-methoxybenzaldehyde) reacts with cyclopentanone in the presence of NaOH and ethanol.
The most two most abundant elements in the crust are oxygen (4.55 X 10^5 g/t, where t stands for metric ton; 1 t=1000kg) and silicon (2.72 X 10^5 g/t), and the two rarest non radioactive elements are ruthenium and rhodium, each with an abundance o..
What is the pressure of dry H2 in mmHg. In atm. d. Assuiming ideal gas behavior, how many moles of H2 has were collected.
Calculate the melting point at 100,000 atm if ?vfus and ?hfus are constant at 2.30 x 10-7 m3 mol-1 and 15.5 kJ mol-1, respectively.
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