Methyl salicylate, C8H8O3, is prepared by heating salicylic acid, C7H603, with methanol, CH3OH, according to the reaction C7H603 + CH3OH ---> C8H803 +
H20 In an experiment, 2.1 g of salicylic acid is reacted with 13.20 g of methanol.
Calculate the amount, in grams, of water produced in this experiment.

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.