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A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
Oxidation of A with KMnO4 gives CO2 and the keto carboxylic acid D shown below. Propose a structure for A.
Calculate the amount of heat liberated (in kJ) from 405 g of mercury when it cools from 94.0°C to 14.0°C.
Explain what a hydrogen bond is and describe, on the molecular level, how a water and an alcohol molecule can hydrogen bond
Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg. (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)
what are the possible sources of error when finding the density of a liquid and of a solid? what can be done to avoid these errors?
What are some of the differences between water obtained from a river that flows past farmland and water obtained five miles
12.5 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 675 mL of solution. Calculate the molarity of the KCl solution.
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
Determine the empirical formula and draw a possible structure for an organic compound with the elemental composition
If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.
An element has two isotopes with masses of 62.9396 u and 64.9278 u,and 30.83% of the atoms are the heavier isotope. Calculate the atomic mass of this element and give its name and symbol.
How much water must be added to 534. mL of 0.180 M HCl to produce a 0.135 M solution? (Assume that the volumes are additive.)
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