If 100.0 mL of a 0.5 M aqueous solution of HCl is diluted to…

If 100.0 mL of a 0.5 M aqueous solution of HCl is diluted to a final volume of 500.0 mL, what is the concentration of the diluted solution?  Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the number of the problem clearly and show your work. Enter the concentration in the box below.   Answer _____________ M

Answer the following questions using the simplified solubili…

Answer the following questions using the simplified solubility rules below: Cations that are always soluble: Compounds of Group 1 cations (Na+, K+, etc.) and ammonium (NH4+) Anions that are always soluble: Nitrate (NO3−) Halides: Compounds of the halides (Cl−, Br−, I−) are soluble except for silver(I) (Ag+) and lead(II) (Pb2+). Sulfate: Compounds of sulfate (SO42−) are soluble except for Group 2 cations (Ca2+, Sr2+, Ba2+) and lead(II) (Pb2+). Everything else: Most other compounds not listed as soluble in rules 1–4 are assumed to be insoluble.

The value of the universal gas constant is 0.082 (L atm)/(mo…

The value of the universal gas constant is 0.082 (L atm)/(mol K) or 8.31 J/(mol K) and 1.00 atm = 760 mmHg or 760 torr. When a sample of H2O2 is decomposed, 350 mL of O2 gas is collected at 20°C and at a partial pressure of 695 torr. How many moles of O2 gas were collected? Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work. Enter your answer in the text box below.

Your team is managing the launch of a new wood pellet grill…

Your team is managing the launch of a new wood pellet grill as part of JZ’s Pellet Project. The launch involves multiple activities, each with varying durations. You need to determine the probability of completing the project within a specific timeframe. The activities and their respective optimistic (a), most likely (m), and pessimistic (p) time estimates (in weeks) are as follows: Activity Predecessor(s) Optimistic (a) Most Likely (m) Pessimistic (b) A – 2 4 6 B A 1 3 5 C A 2 5 8 D B, C 3 6 9 E C 1 2 3 F D, E 2 3 6 What is the probability that the project will be completed within 17 weeks? Report you answer in decimal form to the nearest hundredths place.