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1. How many joules of heat are required to raise the temperature of 550 g of water from 12.0 °C to 18.0 °C?
2. How much heat is lost when a 640 g piece of copper cools from 375 °C, to 26 °C?
3. If 4786 Joules of heat are transferred to a 89.0 gram sample of an unknown material, with an initial temperature of 23.0 °C. What is the specific heat of the material if the final temperature is 89.5 °C?
4. How many joules of heat are necessary to raise the temperature of 350ml of water from 1.00 °C to 5.00 °C?
5. Find the mass of a piece of copper when 8000.0 J of heat are applied, causing a 45 °C increase in temperature.
that the density of all solutions is 1.00 g/mL, and the volumes are additive. calculate the q for the reaction and calculate q for the neutralization of one mole of NaOH
the volume of blood in the body of a certain deep-sea diver is about 6 l. blood cells make up about 55 of the blood
A solution containing 0.750 g of an unknown substance in 30.0 g of cyclohexane was found to freeze at 3.1 C. What is the molar mss of the unlown substance?
water in a coffee-cup calorimeter (see above figure) the temperature rises from 24.00 oC to 40.03 oC. Calculate H in kJ/mol FeCl3 for the solution process.FeCl3(s) Fe3+(aq) + 3 Cl-(aq)
The melting points of NaF, NaCl, NaBr and NaI are 988, 801, 755 and 651 degrees Celsius, respectively. Are these data consistent with ideas developed in Section 12-5
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 8.0×10-2 M NaOH. A:lactic acid
Calculate the mass/volume percent, % (m/v), for the solute in each of the following solutions. Express the answer using 2 sig figures.
The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
how you will prepare 3-methly-1-butanol from a grignard reagent and any needed aldehyde or ketone.
Calculate thePH at the equivalence point in titrating 0.100 M solutions of each of the following with 9.0×10^ 2 M NaOH... calculate the ph for HCLO2
The carbon dioxide will be generated by reacting solid sodium bicarbonate (NaHCO3) with a solution of acetic acid (CH3COOH) as follows: NaHCO3(s) + CH3COOH(aq) ? H2CO3(aq) + CH3COO-(aq) + Na+(aq)
A gas system has initial volume and temperature of 8160mL and 467.0K. If the temperature changes to -151C, what will the resultant volume be in mL
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