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A 2.50 g sample of french fries is placed in a calorimeter with 500.0 g of water at an initial temperature of 21.0 °C. After combustion of the french fries the water has a temperature of 48.0 °C. What is the heat content in kJ/g of the french fries?
Determining the volumes of your solid samples( rubber stopper , cork stopper, and pennies) by measuring their dimensions and calculating it mathematically would be more or les
Consider the isoelectronic ions Cl- and K+. Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constan
The Haber process involves a synthesis reaction. The two reactants are H2 (g) and N2 (g), and the products are ammonia NH3 (g) and heat. The reaction takes place in a reaction
If the density of gasoline is 0.66 g/mL , how many kilocalories of energy are obtained from 2.2 gal of gasoline?Express your answer using two significant figures.
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0035 M.Calculate the number of molecules inside the cell, which is 3.5um long and 1.0um ?
The objective of part A in an experiment is to determine the pH of several common household items with both an indicator and pH paper. Which is more accurate? What about part
The ability to read a scale is becoming a lost art. Our Abbé refractometers use just such an old fashioned scale. With a line of people behind you waiting to use the instrumen
An important reference quantity in science is that the standard atmospheric pressure is equivalent to 760 torr or 101.3 kPa. Explain via the aid of a diagram and a calculation
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