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Calculate the concentration of a solution prepared by dissolving 10.0 grams of NaNO3 in enough water to give 250.0 mL of solution
calculate the osmotic pressure associated with 50.0 grams of an enzyme of molecular weight 98,000 g/mol dissolved in 2600 mL of benzene at 30 celsius
What volume of gas, measured at 690 torr and 40 degrees celcius, is required to form 29g of NaCl?
Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. My answer was 2SO2+O2? 2SO3
Assuming that the heat capacities don't change with temperature, how much energy in kilojoules is needed to heat 5.25g of Hg from a temperature of -59.5C to 43.0C
A certain metal crystallizes in a face-centered cubic arrangement. If it rearranges to a simple cubic structure, what will happen to the density of the metal
Large quantity of ammonia are burned in the presence of platinum catalyst to give nitric oxide as d first step in the preparation of nitric acid.
How many covalent bonds with other atoms will a sulfur atom with 6 electrons in it's outer shell most likely make, and why
A gas occupying a volume of 246 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm.
Protein Quantification :why did you choose one standard curve over the other for analysis of your unknown?
Magnesium oxide decomposes into magnesium and oxygen. If 12.09 of magnesium oxide decomposes to form 7.29 of magnesium, what mass of oxygen gas is also released in the reaction?
A 0.50g sample of vegetable oil is placed in a caloriemeter. When the sample is burned 18.9kj are burned off. What is the caloric value in kcal/g of the oil? I am not sure how to set this problem up. Please help
Consider the following data and select the best buffer system below to make a buffer with a pH of 10.00.
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