The sum of the percentage abundance of these two isotopes of the new synthetic element should be equal to 100. If we let x be the percent abundance of the second isotope, we have the equation, 43 + x = 100The value of x = 57
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Answer:
The mass of helium in the balloon is 1.125 grams
Explanation:
Step 1: Data given
Volume of helium = 6.3 L
Molar mass of helium = 4.0 g/mol
Step 2: Calculate moles helium
1 mol gas = 22.4 L
6.3 L = 0.28125 moles
Step 3: Calculate mass of helium
Mass = moles helium * molar mass helium
Mass = 0.28125 * 4.0 g/mol
Mass = 1.125 grams
The mass of helium in the balloon is 1.125 grams
Answer:
when infectious agents get into the human body your body responds by raising the core body temperature causing a fever