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How much heat is needed to warm 250 g of water from 22 C to 98 C? The specific heat of water is 4.18 J/g . Be sure to include units but do not use scientific notation.
Which metal is associated with the synthesis of cyclopropanes?
what mass of Cu is electroplated by running 20.0A of current through
70g of ice at 0 degrees celcius. is added to 355mL of water at 25 degrees celcius. Find the final temperature of the water when the ice is fully melted
Chlorine gas is known to have a density of 3.17 g/L at standard temperature and pressure. What would be the volume of a 4.6 gram sample of chlorine gas at standard temperature and pressure?
How many moles of gas are there in a gas-filled balloon, which has a volume of 67.0 L at a pressure of 742 mmHg and a temperature of 25.0°C?
The accompanying drawing shows 4 water molecules interacting with glycine. Four dotted lines are labeled with numbers 1 through 4. As labeled by these numbers, which of the dotted lines could represent hydrogen bonds?
What is the equilibrium expression for the following reaction. Please interpret as an equilibrium symbol.
Calculate the molality and molarity of an NH3 solution made up of 37.0 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
what is the volume of the hydrogen gas (at25oC and 100KPA) needed to produce 51.1g of ammonia?
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
The element of interest, P, was precipitated as an insoluble solid determine phosphorus content in plant food. Suppose you wanted to determine iron content in groundwater
Calculate the heat required to convert 25.0 g of C2Cl3F3 from a liquid at 5.00 degress celsius to a gas at 82.00 degrees celsius.
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