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Explain how many calories are required to heat 256g of water from 20C -99C? Explain how many calories are required to heat the same mass of iron through the same range temperature?
Liquid water at 0oC and atmospheric pressure has a density of 1.000 g/cm3. At this condition, ice has a density of 0.917g/cm3. How much work is done at these conditions by 1 kg of ice as it melts to liquid water
given that 10.0 grams of metal at 99.0oc are placed in 50.0 grams of water at 24.0 oc in a perfectly insulated
Although acetanilide and phenacetin aren't appreciably acidic, acetaminophen(like aspirin) is a stronger acid than water.what problem would you encounter if the unknown component were acetaminophen rather than acetanilide or phenacetin, and you ex..
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
determine the mass of a.30.0 ml of the liquid propylene glycol a moisturizing agent for foods which has a density of
excess aqueous nai was added to 50ml of aqueous cuno3 solution and 19.81g of cui precipitate was formed. what was the
the excess HCl required 5.99 mL of 0.0983 M NaOH for titration. Calculate the percentage of nehohetramine in the sample.
If 20.g of NaCl are used, how many grams of H2SO4 are required for complete reaction? Using the balance equation 2NaCl(s)+ 1H2SO4(aq)= 2HCl(aq)+ 1Na2SO4
A stereoselective reaction is a reaction that yields predominantly or exclusively one stereoisomer when two or more stereoisomers are possible. What reaction is stereospecific but not stereoselective
one mole of s2 gas is held at a pressure of 0.20 atm and a temperature of 800k. two moles of oxygen gas are held at a
what mass of co2nbspdo you introduce into the earths atmosphere by completely burning one tank of gasoline in your
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2), and 12.50 g of acetic acid to enough water to make 500 mL of solution. What is the pH of the buffer?
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