A 76.00-pound flask of mercury costs $128.00. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values.
i. What is the price of one pound of mercury?
ii. What is the price of one gram of mercury?
iii. What is the price of one cubic centimeter of mercury?
iv. What is the price of one cubic inch of mercury?
b) It takes 3.350 cubic inches of mercury to make one manometer. Find the price of the mercury used to make 11 manometers by first calculating the cost of mercury for one manometer.
i. What is the price of mercury used to make one manometer?
ii. What is the price of mercury used to make 11 manometers?

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

since electrons are negative the answer is neagtaive