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Be sure to put your answer into the proper number of significant digits. > Question 22...
D Question 20 4 pts You have 3.00 L of a 11.6 M solution. How many liters of solvent do you need to add to create a solution with a concentration of 0.172M? Report your answer to the proper number of significant digits. D Question 21 4 pts You fill a container with 37 moles of Ng. If the container is held at STP, calculate the volume (L) of the N2 in the container. Be sure to put your answer...
correct answer with significant figures QUESTION 19 The correct answer (reported to the proper number of significant figures) to the following is 12.75 x 1.3621 = 17.40 17.0 17.4 17.367 17.37 QUESTION 20 Il Proctorio is sharing your screen electrons, There are neutrons in an atom of 54 Xe. protons, and 70 79.54
The vapor pressure of methanol at 25 °C is 16.85 kPa. Calculate the vapor pressure in atm. Be sure your answer has the right number of significant digits. atm X 5 ?
The vapor pressure of methanol at 25°C is 0.1663 atm. Calculate the vapor pressure in Pa Be sure your answer has the right number of significant digits X 5 ?
What's the answer of this question?(Remember the correct number of significant digits ) Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaoH) to produce aqueous sodium bromide (NaBr) and liquid water (H,0) Suppose 57. g of hydrobromic acid is mixed with 49.1 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits
Please only answer this if you know how to do it for sure, I don’t want to risk getting it wrong and redoing the topic. Thank you Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its reaction with oxygen produces only nitrogen and water y transported. An industrial chemist studying this reaction fills a 500. mL. flask with 3.0 atm of ammonia gas and 3.0 atm of oxygen gas at 30. °C. He then...
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 answer all parts. Report your answer with the proper number of significant figures. Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation, and electrolysis. How many kilograms of magnesium can be obtained from 7.00 km3 of seawater if the initial Mg2+concentration is 0.15% by mass? (d of seawater = 1.04 g/mL) I got 1.06 x 10^14 not right
Convert the following units. Make sure that your answer has the proper number of significant figures. a. 4.8 g/cm3 to kg/m3 b. 941 µm to km. Use scientific notation for your answer. (µ is the prefix "micro" and 1 µm = 1 x 10−6 m) c. The speed of light is 2.9989 x 108 m/s. Convert to miles/hour. Use scientific notation in your answer. d. 782 kg to µg. Use scientific notion for your answer.
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...