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The temperature of 50g of water was raised to 60 degrees C. by the addition of 4100 joules of heat energy. What was the initial temp. of the water in degrees Celcius?
Which of the following is a neutralization reaction?
Given 867 mL of a buffer solution that is 0.532 M methylamine and 0.86 M methylammonium chloride, calculate the pH of this solution after the addition of 1.14 g sodium hydroxide. The Kb of methylamine is 4.4x10-4
what is the final temperature when 125 g of iron at 92.3 degc is dropped into 50.0 g of water at 27.7 degc? the
A reaction has a rate constant of 0.0810 sec-1, how much of the compound (in mol/L) is left after 0.752 min, if there was 0.303 mol/L at the start
Can someone help me solve the problem below? ? for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
Based on the two balanced reaction equations, find the ?G for the complete oxidation of one ethanol to two CO2 molecules.
The decomposition of potassium chlorate (KClO3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 20.7 mol of oxygen?
show the flow of electrons and predict which resonance structure is the major contributor
how many moles of H2SO$ must eb used to produce 6.5 mol of water..?? Someone posted this question before and somehow NaOH
A 2L cylinder of gas contains 2.4 moles of gas at 34 degrees Celsius. What is the pressure?
Suppose you placed 0.500 mol of COBr2 in a 2.00 liter flask and heated it to 73°C. After equilibrium was reached, suppose you added an additional 2.00 mol of CO to the flask at the same temperature
Using a spectrometer and beers law to determine % of copper in a brass sample: what equations are used to determine all.
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