Need answers for red/yellow highlighted boxes / Please round to correct sig figs

8. There are 7.11x10 "molecules in 100.0 cm' of a certain substance. a. What is the number of molecules in 1.09 cm3 of the substance? 7.75 X10 2 b. What would be the number of molecules in 2.24 x 10" cm' of the substance?_X10 c. What number of molecules are in 9.01 x 10"" cm of the substance? x10 9. The number of transistors on a particular integrated circuit is 3 578 000, and the integrated circuit measures 9.5 mm x 8.2 mm. a. What is the arca occupied by cach transistor? X10 b. Using your answer from (a), how many transistors could be formed on a silicon sheet that measures 353 mm x 265 mm?|x10 10. A solution has 0.0501 g of a substance in 1.00 L. Express this concentration in grams per microliter. 501 x10 -s 1 1. Cesium atoms are the largest of the naturally occurring clements. They have a diameter of 5.30 x 10710 m "m. Calculate the number of cesium atoms that would have to be lined up to give a row of cesium atoms 2.54 cm (1 in.) long. 472 X10 7 12. The neutron has a volume of approximately 1.4 x 10 * m' and a mass of 1.675 x 10"* g. Calculate the density of the neutron in g/m'. What is the mass of 1.0 cm of neutrons in kilograms? 12 X10 13. The pits in a compact disc are some of the smallest things ever mass-produced mechanically by humans. These pits represent the Is and Os of digital information on a compact disc. These pits are only 1.6 x 10" m deep (1/4 the wavelength of red laser light). How many of these pits would have to be stacked on top of each other to make a hole 0.305 m deep? 1.9 x10 7 14. 22 400 mL of oxygen gas contains 6.022 x 10- oxygen molecules at 0"C and standard atmospheric pressure. a. How many oxygen molecules are in 0.100 mL of gas? 269 X10 |18 b. How many oxygen molecules are in 1.00 1 of gas? 26 X10 18 c. What is the average space in milliters occupied by one oxygen molecule?_x10 15. The mass of the atmosphere is calculated to be 5.136 x 10) kg, and there are 6 500 000 000 people living on Earth. Calculate the following values. a. The mass of atmosphere in kilograms 1X10 b. The mass of atmosphere in metric tons per person c. If the number of people increases to 9 500 000 000, that is the mass in kilograms per person? |x10 16. The mass of the sun is 1.989 x 10 * kg, and the mass of Earth is 5.974 x 10- kilograms. How many Earths would be needed to equal the mass of the sun? X10