I think it’s 79.5 g don’t thank me and sorry if you get it wrong
Phenolphthalein turn pink in basic solutions.it turn colourless in acid solution.
Hence options(1)is correct
The number of moles present in 29.5 grams of argon is 0.74 mole.
The atomic mass of argon is given as;
Ar = 39.95 g/mole
The number of moles present in 29.5 grams of argon is calculated as follows;
39.95 g ------------------------------- 1 mole
29.5 g ------------------------------ ?

Thus, the number of moles present in 29.5 grams of argon is 0.74 mole.
<em>"Your question seems to be missing the correct symbol for the element" </em>
Argon = Ar
Learn more here:brainly.com/question/4628363
Hydrogen as it has only 1 proton and therefore only an atomic mass of 1...
A. Solar Energy
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