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Chapter 6 conversions: your answer needs to have the correct number of significant figures How many...
Question 42 pts Type your calculations for possible partial credit. Your answer needs to have the correct units, in addition to a number. Your answer also needs to have the correct number of significant figures. 4.9 moles of a gas fills a 6.5 L container at a constant pressure. How many moles of that gas can fill a 10.5 L container? HTML Editor D Question 42 5 pts Type your calculations for possible partial credit. Your answer needs to have...
Carry out the following conversions. Report your answer to the correct number of significant figures. (a) 102 m/s to ft/min × 10 ft/min (Enter your answer in scientific notation.) (b) 74.6 cm3 to in3 in3 (c) 47.4 g/mL to lb/in3 lb/in3
1.) Complete the following conversions using the correct number of significant figures, if applicable. 2 Moles of NaOH into molecules of NaOH 29.3 grams of Mo into moles of Mo 5.6 x 1024 molecules of Ag into grams of Ag 2.) If you are combusting 2.5 grams of ethane with 2 moles of O2 in the reaction: 2C2H6 + 7O2 à 4CO2 + 6 H2O Determine the limiting reagent. For the limiting reagent, determine the mass of the leftover material....
Show your work. Use the correct number of significant figures in your answers. Aluminum metal reacts with chlorine gas to form solid aluminum chloride. 1. Write the balanced equation including states of matter. 2. If 70.0 grams of aluminum reacts with excess chlorine gas, how many grams of aluminum chloride will form? 3. How many grams of chlorine will react completely with 85.6g of aluminum? Sodium hydroxide reacts with sulfuric acid to produce water and sodium sulfate. 4. Write the...
Question 41 5 pts Type your calculations for possible partial credit. Your answer needs to have the correct units, in addition to a number. Your answer also needs to have the correct number of significant figures. At 329 K, a constant amount of gas exerts 0.895 atm of pressure in a 35.0L container. At what temperature would that gas exert 1.25 atm of pressure in a 20.5 L container? HTML Editor BIV AA- IK EE311xx TT12pt Paragraph
Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is: Fe20. (s) + 2Al(s) – 2Fe (1) + Al O2 (s) a. How many moles of iron (III) oxide must react in order to produce 3.5 mol of Fe? (1.25pts) b. What mass of iron (III) oxide reacted in order to...
Show ALL work, answer to correct number of significant figures, and don't forget your UNITS. 1) A patient has a body temperature of 38.5 °C. Express this temperature in degrees Fahrenheit. 2) A doctor orders 2.0 mg of morphine. The vial of morphine on hand is 10. mg per 1.0 mL. How many milliliters of morphine should you administer to the patient?
Calculations: SHOW WORK on separate paper. Use correct number of significant figures and report units with answers where required. 1. Find the number of moles in 25.0 grams of each of the following: Find the a. Ni b. C.H. c. Ca(OH)2 Find the mass of 0.750 moles of each of the following: Brz b. P.010 CuS 3. Find the number of particles in 35.0 grams of each of the following: a. Ag b. CF4 C. CHO Find the mass of...
How many Significant figures does each answer have? explain why did you consider that number? exact number or measured? ow many SignticanT fiqure has Rach answer a 8 moles X 3.5 L 4 mol b) 20.0 Lx 50 C 25 с c) V 30.0 L 2 2
if 3 significant figures is required, correct answer: 0.123 wrong answers: 0.12, 0.13, 0.1234; if 3 decimal places is required, correct answer: 0.456, wrong answer: 0.45, 0.4, 0.4564; if question asking for molar mass of H20, correct answer: 18.015 g/mol; wrong answer: 18.015. You will lose all credit if you dont write correct unit in your answer. What is the mass percent of O in MgCO3? A. 14.2% B. 19.0% C. 28.8% 56.9% What is the mass of 8.04 x...