Answer:
Explanation:
The solubility of sodium chloride at 60 degree in water is 37.04 gm / 100 mL
or 37.04 gm / 100 gm of water
So 50g of NaCl can not be dissolved in 100 g of water.
Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.
Gay- Lussacs law states that the pressure of a gas is directly proportional to temperature for a fixed amount of gas at constant volume.
therefore P/T = k
where P - pressure , T - temperature and k - constant

parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
T1 - temperature in kelvin - 110 °C + 273 = 383 K
T2 - 65.0 °C + 273 = 338 K
substituting these values in the equation

P = 19.9 psi
new pressure is 19.9 psi
Answer:
a magnifying scope
Explanation: you get a close up view of the target and because of that there is a lower margin of error