Start studying Pressure - Volume Relationships in Gases (Boyle's Law). Learn vocabulary, terms ...Select<span> all that apply. V2 = k/P2 V2 = P1V1/P2 ... What </span>two variables<span> are </span>held constant when testing Boyle's Law in a manometer<span>? Temperature hope this helps
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N₂ + 3 H₂ → 2 NH₃
number of moles of N₂ = 38 g / 28 g/mol = 1.357 mol
1 mole of N₂ gives 2 moles of NH₃
1.357 mol of N₂ will give ?? mole NH₃
= 2 x 1.357 = 2.7 mol NH₃
Answer:
When calcium carbonate reacts with hydrogen chloride, it reacts to form calcium chloride, carbon dioxide, and water. If this reaction occurs with 51.6% yield, what mass of carbon dioxide will be collected if 16.93 g of CaCO3 is added to sufficient hydrogen chloride
Answer:
Bq/m3 (becquerels per cubic meter) or pCi/l (picocuries per litre)
Explanation:
The unit of the International System of Units identified to measure radioactive activity is Becquerelio (Bq) and equivalent to one decay per second.
The Curio (Ci) is also a radioactivity unit, which is still being used in some countries. It owes its name to chemists and chemists Pierre and Marie Curie.
It represents the amount of material in which 3.7 × 1010 atoms per second, or 3.7 × 1010 nuclear decays per second, which is roughly the activity of 1 g of 226Ra (isotope of the chemical chemical element).
The equivalence between the two is:
1Ci= 3,7 × 1010Bq
The specific radioactive activity of a radioactive gas such as radon gas is measured per unit volume and measured in Bq/m3 or pCi/l.
In this case the equivalence is:
1pCi/l= 37Bq/m3
Answer:
We have 0.117 moles Mg^2+ and 0.234 moles Cl-
The number of Mg^2+ ions = 7.04 *10^22 ions
The number of Cl- ions = 1.4*10^23 ions
Explanation:
Step 1: Data given
Volume of magnesium chloride = 63.1 mL
Concentration of solution = 1.85 M
Step 2: Calculate moles MgCl2
Moles MgCl2 = concentration * volume
Moles MgCl2 = 1.85 M * 0.0631 L
Moles MgCl2 = 0.117 moles
Step 3: Calculate moles of ions
MgCl2 → Mg^2+ + 2Cl-
For 1 mol MgCl2 we have 1 mol Mg^2+ and 2 moles Cl-
For 0.117 moles MgCl2 we have 0.117 moles Mg^2+ and 2*0.117 = 0.234 moles Cl-
The number of Mg^2+ ions = 0.117 * 6.022 *10^23 = 7.04 *10^22 ions
The number of Cl- ions = 1.4*10^23 ions
