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1. Ethylene glycol, C2H6O2, is an ingredient of automobile antifreeze. Its density is 1.11 g/cm3 at 20 °C. If you need 500. mL of this liquid, what mass of the compound, in grams, is required?
2. A piece of silver metal has a mass of 2.365 g. If the density of silver is 10.5 g/cm3, what is the volume of the silver?
Which of the following has the greatest buffer capacity. a) 0.40 M CH3COONa/0.20 M CH3COOH, b) 0.40 M CH3COONa/0.60 M CH3COOH, and c) 0.30 M CH3COONa/0.60 M CH2COOH.
when 7.00 moles of gas A and 3.00 moles of gas B are combined, the total pressure exerted by the gas mixture is 1.0 atm. What is the partial pressure exerted by gas a in this mixture
Problem- How could I differentiate between Acetic Acid 99.9% and .1 M Acetic Acid based on electrical conductivity
if you used 8900 kilojoules you expend in energy in one day to heat 49000g of water at 19 C what would be the rise in temperature.
Explain what is the molarity of an HCl solution whose density is 1.13g/cm3 as well as that contains 25.7% HCL wt/wt
Problem- A newly discovered atom, Unk, is found to form a polar covalent bond with the comparatively more electropositive Phosphorus, P, with a bond energy of 450 kJ/mol. Bond energy: P-P = 490 kJ/mol; Unk-Unk = 347.0 kJ/mol. Determine the electro..
The slope of an arrhenius plot between ln k and 1/t for a reaction is -0.66x10^4 K, and the y intercept is 11.25. what is the activation energy and the frequency factor of the reaction respectively?
What would be the product of triphenylbromomethane with water if it was reacted in acetone/methanol
A solution is prepared with 3.85 grams of an unknown compound in 100.0 grams of cyclohexane. The solution had a freezing point of 4.18 degree celcius (277.33 kelvins). What is the molar mass of the unknown compound?
In general, oxides of elements further to the left on the periodic table are basic, moving toward acidic on the right. For nonmetallic oxides, when the oxidation number of the element other than oxygen is high, the oxide tends to be acidic. When t..
In the neutralization reaction: HCl (aq) + NaOH (aq) = NaCl (aq) +H20, 25.0 mL of 0.212 M NaOH is neutralized by 13.6 mL of an HCl solution. The molarity of the HCl solution is ?
A gas weighing 33.62 g occupies a 10.00 liter flask at 27oc and 730 torr of pressure. what is the molar mass of the gas?
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