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Calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H2O. Assume that the calorimeter absorbs no heat.
Calcium metal has a density of 1.55g/cm3 and crystallizes in a cubic unit cell with an edge length of 558.2pm. a. how many Ca atoms are in one unit cell?
magnesium hydroxide is 54.87 oxygen by mass.How many grams of oxygen are in 175 g of the compound?How many moles of oxygen is in this.
Suppose your thermometer read consistently 1.0 o C lowered throughout both parts in the colligative properties lab. What effect would that have on your experimental value for the molar mass of your unknown solute?
Define Bonding and Molecule formation, Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Peri..
The component of structure responsible for holding the 4 chains of hemoglobin together is a. primary
A sealed-end water manometer attached to an air duct reads 1598 cm. An open-end water manometer attached to the same duct reads 556.2 cm.
0.60 g of hydrogen chloride (HCl) is dissolved in water to make7 L of solution. What is the pH of the resulting hydrochloric acid solution.
If the methane contained in 2.00 L of a saturated solution at 25 degrees C was extracted and placed under STP conditions, what volume would it occupy.
In the tin oxide laboratory activity, what was the color of the vapor emitted when the nitric acid was added to the tin.
what is the minimum amount of ice at 0C that must be added to the contents of a can of diet cola (340mL) to cool it from 20.5C to 0C?
Why do some scientists have concerns have regarding further increases in bio fuel production. giving chemical reasons explain why is is expensive to manufacture ethanol from cellulose.
A 2.914-g sample gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 C in a crucible until a constant mass is reached.
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