Answer:
0.246 M
Explanation:
The reaction that takes place is:
- Sr(OH)₂ + 2HCl → SrCl₂ + 2H₂O
First we <u>calculate how many HCl moles reacted</u>, using<em> the given volume and concentration</em>:
- 0.350 M * 21.1 mL = 7.385 mmol HCl
Then we<u> convert HCl moles into Sr(OH)₂ moles</u>, using the <em>stoichiometric coefficients</em> of the balanced reaction:
- 7.385 mmol HCl * = 3.692 mmol Sr(OH)₂
Finally we calculate the concentration of the original Sr(OH)₂ solution:
- 3.692 mmol Sr(OH)₂ / 15.0 mL = 0.246 M
Scholarly research uses credible sources
Answer is: 0,250 atm.
T₁(chlorine) = 27°C = 300K.
T₂(chlorine) = 227°C = 500K.
T₂/T₁ = 1,66.
p1(chlorine) = 0,150 atm.
p2(chlorine) = ?
V(chlorine) = constant.
n(chlorine) = 0,0200 mol.
R - gas constant, R = 0.0821 atm·l/mol·K.
Ideal gas law: p·V = n·R·T.
p = n·R·T÷V.
If temperature was increased 1,66 times, pressure also increase 1,66 times: 1,66·0,150 atm = 0,250 atm.
Answer:
beryllium iodide has a molar mass of 262.821 g mol−1 , which means that 1 mole of beryllium iodide has a mass of 262.821 g . To find the mass of 0.02 moles of beryllium iodide, simply multiply the number of moles by the molar mass in conversion factor form.
Explanation:
The moles of product are formed is 0.0303 mol
The process we are interested in is
3Mg + N2 to Mg3N2.
N(Mg3N2) = n(Mg)/3 = 0.0303 mol moles of product were produced.
<h3>What is Moles ?</h3>
A mole is the mass of a substance that includes 6.023 x 10^23 of that substance's particles. The mole is the SI unit used to measure a substance's quantity. It has the symbol mol. As a result: One mole of carbon-12 weighs 12 grammes and has a carbon atom content of 6.022140857 x 10^23.
- In particular, in terms of mass, it serves as a bridge between the microscopic and the macroscopic. A unit (atom or molecules) has the same mass in grammes as a mole of a substance has in atomic mass units.
Hence, moles of product are formed is 0.0303 mol
Learn more about Moles here:
brainly.com/question/15356425
#SPJ4