a cup contains 100g of water at 10°c. if 100 g of 50 degrees celsius water is added, what will the temperature of the mixture be?
a cup contains 100g of water at 10°c. if 100 g of 50 degrees celsius water...
An aluminum cup of unknown mass contains 200 g of water and a 100 g copper stirrer, all at 20 degrees Celsius. A 600 g sample of silver at an initial tempreature of 100 degrees Celsius is placed in the water. The stirrer is used to mix the water until the mixture reaches thermal equilibrium at 30 degrees Celsius. A. How much heat does the water absorb? B. How much heat does the copper stirrer absorb? C. How much heat...
A solution contains 110 g of KNO3 per 100 g of water at 50 degrees Celsius. Is the solution saturated, unsaturated, or supersaturated? The graph in the previous problem may be helpful.
if 300 g of a metal at 98 degrees Celsius is mixed into 500 g of water in a 200 g aluminum cup (cup and water both at 10 degrees celsius) and the final temperature of the mixture is 14.3 degrees celsius, what is the specific heat capacity of the metal? what is the metal?
7. A 100g mass of tungsten at 100 degrees C is placed in 200 mL of water at 20 degrees C. The mixture reaches equilibrium at 21.6 degrees C. Calculate the specific heat of tungsten. Ok, I tried working it out but I got q= 100g x 4.186 j/g*degrees C * (21.6 degrees C- 20.0 degrees C) which equals to 1.6. So q= 100g * 4.186 j/g*deg C * 1.6 I got a very high number. I am stuck what...
aluminum chloride has a solubility of 48.6 grams per 100g of
water at 80 degrees Celsius what is the maximum possible molality
of an aqueous AlCl3 solution at 80 degrees Celsius
S. Aluminum chloride has a solubility of 48.6 grams per 100 g of water at 80°C. What is the maximum possible molality of an aqueous AICl3 solution at 80°C? Show your work.
a 20.94-g sample of an unknown metal is heated to 99.4 degrees Celsius in a hot water bath until thermal equilibrium is reached. The metal is quickly transferred to 100 mL of water at 22.0 degrees Celsius contained in a styrofoam cup. The thermal equilibrium temperature of the metal plus water mixture is 24.6 degrees Celsius. What is the Specific heat capacity of the metal?
A student performs the following experiment : a coffee cup calorimeter contains 50.0g of water at 20.0 degrees Celsius. A student pours an unknown amount of warm water at 55.0 degrees celcius into this cup. The final temperature of the combined water is 34.6 degrees celsius. a. calculate the amount of heat absorbed by the cool water including the sign of q b. calculate the amount of heat released by the WARM water, including the sign of q c. calculate...
A cup of water at Temperature of 21 degrees Celsius with .5 [kg] of water is sliding on a table. It starts sliding at 20 [m/s] and slows to a halt. Assuming that the cup itself is (almost) massless, and that all the energy has gone into heat, what is the final temperature of the water?
A mass m_u = 100 g of liquid water sits in an insulated cup at temperature T_w = 10 degree C. Ice at temperature T_i = -10 degree C is added, and the mixture comes to thermal equilibrium when exactly half of the ice has melted. Find the mass of ice added, m_i. Solve this for the general case of any substance where the solid form of the substance is added to the liquid form. Follow the steps below: Specify...
The autoionization of water, at 50 degrees celsius is 5.47 x 10^-14. What is the pH of the water at the temperature? What is the [OH-]? What is the pH of neutral water at 50 degrees celsius?