B. False
It was created in 1869
Answer:
Explanation:
To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.
Use the molar mass as a ratio.
Multiply by the given number of grams: 118
Flip the fraction so the grams of argon will cancel each other out.
The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.
For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.
There are about <u>2.96 moles of Argon</u> in 118 grams.
Answer:
Adakah benar anda tidak boleh mencuci rambut, minum air sejuk dan
makan ais krim atau bersukan semasa haid? Terangkan jawapan anda.
Tidak, ini tidak benar, melakukan semua ini baik-baik saja. Seperti, tidak ada yang dapat mempengaruhi kita, kerana tidak bersambung dengan sistem kita. Juga, mohon maaf jika bahasa itu salah kerana saya menggunakan terjemahan Google.
Semoga ini membantu :)
Neon-22
Depending on the type of notation the question wants but that is generic term for it.
Question:
Ammonium perchlorate NH₄ClO₄ is a powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen N₂ gas, chlorine Cl₂ gas, oxygen O₂ gas and water vapor, releasing a great deal of energy. Calculate the moles of water produced by the reaction of 2.5 mol of ammonium perchlorate. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.
Answer:
The number of moles of water produced by the reaction of 2.5 mol of ammonium perchlorate is 5 moles (of H₂O).
Explanation:
To solve the question, we are required to know the amount of each reagent and products there are in the balanced chemical reaction as follows
2 NH₄ClO₄ → N₂ + Cl₂ + 2O₂ + 4H₂O
From the chemical reaction stoichiometry, it shows that 2 moles of ammonium perchlorate, NH₄ClO₄ produces 4 moles of H₂O
Therefore 2.5 moles of ammonium perchlorate will produce moles of H₂O or 5 moles of H₂O.