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- S [Review Topics] a. Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.110 g on the average. What would 78 such washers weigh? g Submit Answer b. Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.110 g on the average. How many washers would there be in 240. g of washers? washers Retry Entire Group Show Hint [References] 9 more group attempts remaining Previous Next> Save and ExitWhat is the mass of 1.91 x 10^23 atoms of nitrogen? ____ grams What is the mass of 3.91 x 10^23 molecules of nitrogen? ____ grams What is the mass of 1.10 x 10^24 atoms of oxygen? ____ grams What is the mass of 9.26 x 10^23 molecules of oxygen? _____grams PLEASE ANSWER ALL THE QUESTIONS ITS ACTUALLY ALL IN ONE SINGLE QUESTION, THANK YOU!2. As of today Gold is trading at $1841.94 per ounce. Recall that 1 ounce = 28g. If we have 28.56g of Gold (III) Chloride, how much money is the gold worth on todays market? %3D
- 7 Calculate the mass (in g) of oxygen in a 76.9 g sample of Ni(BrO4)2 (MM = 346). Report your answer to 3 significant figures. Type your answer.... Previous2. Discussion Questions: a. How would you measure the mass of a solid if it existed as a powder or crystals? What can you use to contain the crystals on the balance? b. Compare the precision of the analytical balance to the top-loading balance. Do more precise instruments give more or less significant figures for measurements? Which would be the better balance to use for experiments?The first box is the key. The second box represents.... 00 00 00 00 00 0 00 OO OO Atom Y: O Atom Z: • A Mixture A Pure substance An Element O Compounds 8:8
- a) An acetaminophen suspension for infants contains 80 mg/ 0.80 mL suspension. The recommended dosage is 15 mg/kg body weight. How many mL of this suspension should be given to an infant weighing 6.5 kg? b) A runner wants to run 10.0 km. She knows that her running pace is 3.5 m s- 1. How many minutes must she run?If Mass of 10 bolts = 64.567 g Mass of 10 nuts = 20.321 g1. What is the mass of 225 bolts?2. What is the mass of 450 nuts?3. If you have 625 grams of bolts, what is the mass of the same number of nuts?5. Given your experience in mass determinations and with volumetric glassware, which factor used - mass or volume - is likely to be measurable with greater precision? in calculating the density Explain. red with greater
- The mass of 4.375 x 1016 molecules of compound with the molecular formula C3H9N is ______ g. Report your answer in scientific notation and to 3 s.f. For example, if your answer was 1.076 x 10-10 you would report it as 1.08e-10.1a) A children's liquid medicine contains 100 mg of the active ingredient in 5 mL. If a child should receive 200 mg of the active ingredient, how many milliliters of the medicine should the child be given? For the purposes of this question, assume that these numbers are exact. 1b)The package states that one teaspoon (tsp) is approximately equal to 5 mL. Calculate the number of teaspoons that the child should receive. Use the given approximation as your conversion factor.Question 2. You have decided to try a new video game called World of Alchemist Hordes (WoAH) and created a character named Artemis. Part a) You are able to mine several types of ore in the game. You accumulate 29 chunks of iron, 15 chunks of silver, and 17 chunks of platinum in your bag. Round your answers to 2 significant figures. What percentage of your ore is iron? (please show work so I can understand going forward) Part b) Rank the following numbers from largest to smallest? Show your work by converting all numbers to standard or scientific notation. (Please show work so I can understand going forward) 3.4 × 10^4; 4.71 × 10^−4; 0.000093