MA= output force/ input force
MA= 100N/20N
MA= 50
Answer:
The molar mass of Pb(Cr2O7)2 is 639.2 g/mol.
Answer:
55.18 L
Explanation:
First we convert 113.4 g of NO₂ into moles, using its molar mass:
- 113.4 g ÷ 46 g/mol = 2.465 mol
Then we<u> use the PV=nRT formula</u>, where:
- P = 1atm & T = 273K (This means STP)
- R = 0.082 atm·L·mol⁻¹·K⁻¹
Input the data:
- 1 atm * V = 2.465 mol * 0.082atm·L·mol⁻¹·K⁻¹ * 273 K
And <u>solve for V</u>:
The correct answer is False.
Answer: The elements with properties intermediate between those of metals and nonmetals are called semimetals (or metalloids).
