Part A Estimate the time needed for a glycine molecule (see Table 13-4 in the textbook) to diffuse a distance of 20 um in Water at 20 "Cif ts concentration varies over that distance from 1.05 mol/m' to 0.42 mol/m Express your answer to two significant figures and include the appropriate units. ? 312 Submit Previous Answers ReauestAnswer

1. We have 500 in³ of nitrogen at 1640 psi gauge pressure at 85°F. What is the volume at 1250 psi gauge pressure at 40°F? Show working equation with answer. Answer must be in in^3.

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Directions: Solve the following problems. Use g = 9.80 m/s? and assume all numbers are accurate to 3 significant figures unless otherwise indicated. 1. A cylinder that has a 41.0-cm radius and is 50.0 cm deep is filled with air at 29.5°C and 1.00 atm shown in figure (a). A 21.0-kg piston is now lowered into the cylinder, compressing the air trapped inside as it takes equilibrium height hi as shown in figure (b). Finally, a 21.5-kg dog stands on the piston, further compressing the air, which remains at 29.5°C as shown in figure (c). What is the value Ah? Ah 50.0 cm h;

Can you please answer this question and all of the sub problems show all of the steps to the solution

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1 please need help, keep in mind the 7 basic units and watch the sig figs. Please write in standard form need to see all the numbers in solution thank you so much