Show numbers plugged into the formula for all math problems. Make sure to have the correct unit and significant figures in your each answer.

Calculate the new pressure when a constant volume of gas at 1.21 atm is heated from 15.0°C to 30.0°C.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

Light waves can move through , but they travel fastest when they move through a(n) .