Answer:
Number of moles = 0.12 mol
Explanation:
Given data:
Mass of carbonate = 6.5 g
Moles of carbonate = ?
Solution:
Number of moles = mass / molar mass
Molar mass of carbonate = 60 g/mol
Now we will put the values in formula:
Number of moles = 6.5 g/ 60 g/mol
Number of moles = 0.12 mol
Answer:
the answer is solid change into liquide.
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Answer:
Your question is missing some information.
But in most of the systems, potential energy and kinetic energy are inversely proportional
Answer: 287.8 cm3
Explanation:
Given that:
Initial volume of gas V1 = 350 cm3
Initial pressure of gas P1 = 740 mmHg
New volume V2 = ?
New pressure P2 = 900 mmHg
Since, pressure and volume are involved while temperature is constant, apply the formula for Boyle's law
P1V1 = P2V2
740 mmHg x 350 cm3 = 900mmHg x V2
V2 = (740 mmHg x 350 cm3) /900mmHg
V2 = 259000 mmHg cm3 / 900mmHg
V2 = 287.8 cm3
Thus, the gas will occupy 287.8 cubic centimeters at the new pressure.
