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How much heat is required to warm 231 g of ice from -46.9°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
What exactly is the reduction of alkynes? I just understand that it is a method for synthesizing alkenes. Why are the leaving groups for E2 reactions not as good as E1 reactions?
Calculate the number of molecules in 7.00 moles H2S, Using Avogadros number calculate the number of molecules in 7.00 moles H2S
An aqueous solution is 13.0% by mass ethanol, CH3CH2OH, and has a density of 0.978 g/mL. The molality of ethanol in the solution is?
Calculate the number of moles of an ideal gas in a 250. mL sealed container that has a pressure of 788 torr and a temperature of 72.1 degrees F.
At what temperature will 6.21 g of oxygen gas exert a pressure of 5.00 atm in a 10.0-L container
Yield of Reaction, Propene reacts with hydrobromic acid to yield 2-bromopropane via Markovnikov addition about the double bond of the alkene.
The half-life of 137Ce is 30 years. How many grams of 137Ce must be produced now to have a sample containing 32 g of 137Ce 190 years from now?Answer in units of g
A first-stage recovery of magnesium from seawater is precipitation of Mg(OH)2 with CaO: Mg2+(aq)+CaO(s)+H2O(l)---->Mg(OH)2(s)+Ca2+(aq).
Write the balanced net ionic equations for each of the following compounds with aqueous NH4OH 1. HCl (aq) 2. H2SO4 (aq) 3. HNO3 (aq) 4. NaOH (aq)
A hypothetical molecule, X-Y, has a dipole moment of 1.90 D and a bond length of 169 pm. Calculate the percent ionic character of this molecule.
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 280 mL of 0.250 M NiSO4. How many grams of the precipitate can be formed?
A chemist wants to make 5.1 L of a 0.291 M CaCl2 solution. What mass of CaCl2 (in g) should the chemist use
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