A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Mg, g Final buret volume, mL Pbarometric, in Hg 0.039 39.4 29.29 PH20, torr 17.5 T, °C 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal.
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- a .ull Asiacel| 10 N 141 N O A box with a volume (V=0.05 m³) lies at the bottom of a lake whose water has a density of (1*10³ kg/m³). How much force is required to lift the box, .if the mass of the box is (1000 kg) 9319.5 N O 9313.9 N O 9391.5 N O 9315.9 N O A future rectangular ship filled with oil. If the dimensions of the ship are (250 m) long, (80 m) wide, and (80 m) high. Determine how far the bottom of the ship is below the sea level? (Consider the total mass of the ship with the oil is (10.2*108 kg), and the .sea density is (1024 kg/m³))4.35 L He/1 x 1 mole He/22.4 L He. When we solve this problem we get 0.19419642. Apply the significant figure rules to the final answer. Then explain why the final answer makes sense using the example answer attached to help.A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Mg, g Final buret volume, mL Pbarometric, in Hg PH20, torr T, °C 0.04 40.75 29.91 17.5 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal. Question 6 4.5 pts र F6 F8 F9 P
- A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Mg, g Final buret volume, mL Pbarometric, in Hg PH20, torr T, °C 0.035 42.34 27.1 17.5 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal.A student performed the same experiment as you. The following data was recorded in their lab notebook. Mass of Final buret volume, Mg, g Pbarometric, in Hg PH20, torr T, °C ml 0.037 37.52 28.62 17.5 20.0 Calculate the student's experimental value of R. Round your answer to four places after the decimal. 1.20 RE F6 FB F9 DID 8Calculate the electrostatic force of repulsion for two protons separated by 93.0 pm. The charge of a proton is q = 1.6 x 10-1⁹ C. Express your answer to two significant figures and include the appropriate units. Fel = μA 2.7.10 6 Submit N Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remaining Use the equation Fel = K(Q₁ Q₂/d²) to find the electrostatic force between the two particles. Q₁ and Q2 are the charges on the particles (charge of a proton here), and d is the distance of separation. The constant is given in the introduction and has the units Nm²/C². This means that the distance must be converted from picometers to meters using the relation 1 pm = 1 × 10¯ m. -12
- Inbc X (531 X Con X I Bala X Ans X Inbc X CHE X 101 Che X С Ч-С х b My x Unk X Sea X E I ma X app.101edu.co/# Bryant's Gmail Cascadia Canvas Lo... T GSBA Scholarship L... HOMEGROWN TRA... Learn Touch Typing... C The Science of Well... Investor360° ® Login ClickUp Reading list >> Question 7 of 40 Submit Which of the following compounds can form intermolecular hydrogen bonds? A) CH4 B) H2Se C) NH3 D) H2 E) All of these compounds can form hydrogen bonds. 10:36 AM e Type here to search 64°F 小 8/26/2021 (8)How many grams F in 650.1 g Br,F,? Put the answer in the box in regular (non-scientific) notation. Use one figure past the decimal.How many grams Fin 650.1 g Br F? Put the answer in the box in regular (non-scientific) notation. Use one figure past the decimal.
- A garage manager must determine the number of metal ball bearings (BBs) in a stock container by mass measurements. He counts out 5 BBs and finds their total mass to be 1.9 g. He also finds the total mass of the stock container and the BBs to be 239.3 g and the mass of an identical, empty stock container to be 115.8 g. The store manager then uses his data to calculate the number of BBs in the stock container: Average mass of one BB = 1.9/5 = 0.4 g Mass of BBs in container = 239.3 g - 115.8 g = 123.50 g Number of BBs in container = 123.50/0.4 g= 300 BBs (a) Evaluate the manager’s calculations with regard to significant digits. If necessary, rewrite any steps, recalculating with the adjusted quantities. For any step that you have to rewrite, explain why the manager’s calculation is in error. (b) Should the manager regard the answer to the calculation in (a) as a perfect measure of the number of ball bearings in the container? (c) How could the manager have changed his procedure to…Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 64. g of hexane is mixed with 200. g of oxygen. 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. I keep getting this problem wrong because of the sig. digits, dont round till the end because if it is off by 0.1, it will be incorrect.The mass of magnesium used in this experiment is critical to determining the moles of hydrogen gas generated. The analytical balances used in Chemistry 1A labs are very sensitive to point that touching materials with your fingers before measuring them can affect the measurements. The balances are sensitive enough to detect dirt and oils from your fingers transferred to the magnesium. Would your experimental value of R increase or decrease if the mass of magnesium measured was artificially high due the touching it with your hands? Increase Decrease