The density of water at O°C is 1.00 g/mL. At 30°C the density of water is...
1. how many milliliters of water at 15 degrees C with a density of 1.00 g/ml must be mixed with 75 mL of instant coffee at 100 degrees C so that the reuslting combination will have a temperature of 60 degrees C? Assume that coffee and water have the same density and the same specific heat. 2. a cylinder has a mass of 3262.6 mg. a graduated cylinder filled with water had an initial volume of 1.42 L. when the...
When 1.10 g of a salt dissolves in 252 mL of water (density = 1.00 g/mL) in a coffee-cup calorimeter, the temperature rises from 16.1°C to 24.5°C. Determine q for the solution process, assuming that Ccal ≈ Cwater.
Canvas Question 12 The density of water at 3.98 °C is 1.00 g/mL. What is the density in g/cm3? O 16.4 g/cm3 O 3.98 g/cm3 O 2.54 g/cm3 O 624 g/cm3 O 1.00 g/cm3
The density of mercury is 13.5 g/mL and the density of water is 1.00 g/mL. If a mercury barometer reads 787 mmHg, what is the barometric pressure in centimeters of water (cmH2O)?
Calculate the final temperature when 30 mL of water at 75 °C are added to 65 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. VO AP R O 2 ?
1. 5.00 g of urea, (NH2)2CO is dissolved in 250.0 mL of water(density = 1.00 g/mL) at 30.0oC in a coffee cup calorimeter. When this is done, 27.6 kJ of heat is absorbed. (5 points) a) Is the solution process exothermic or endothermic? c) What is qwater? d) What is the final temperature of the solution(specific heat constant of water is 4.18 J/g.OC)? Please show all the work!! thank you very much :)
The density of mercury is 13.5 g/mL and the density of water is 1.00 g/mL. If a mercury barometer reads 751 mmHg, what is the barometric pressure in centimeters of water (cmH,O)? barometric pressure: cmH20
When 50.0 mL of 1.00 M HCl and 50.0 mL of 1.00 M NaOH are mixed in a constant-pressure calorimeter, the temperature of the solution increases from 21.0°C to 27.5°C. Calculate the enthalpy change of the reaction per mole of HCl assuming the solution has a total volume of 100.0 mL and a density of 1.000 g/mL. The specific heat of water is 4.184 J/q°C Asoln = 2720
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90 g/ml, and that of the liquid is 6.10 g ml. a Does solid gallium expand or contract when it is melted? contracts Explain The same amount of mass occupies space in the liquid phase than in the solid phase. 6. What is the change in volume when 6.10 mL (cm) of solid gallium is melted? Volume by mi Reference Lt 30.0°C.Calculate the change in...
1.00 mL of water at 25 C is heated to 100 C, at which point it boils at an atmospheric pressure of 1 atm and is vaporized. What is the difference in volume (in mL) when this happens? (At 25 C, liquid water has a density of 0.997 g/mL.)