Perform the following calculation: -0.0060 cm3 + 1.0042 cm3 What is the answer to the calculation above with the correct units and significant figures? O 1.0 –9 0.99820 0.9982 0.998 Questlon 9 Perform the following calculation: (-0.0030-o *275 °C)- 1.0042 x 27 °C x cm³ g °C+1.0042 -9 cm3 What is the answer to the calculation above with the correct units and significant figures? O 0.9960–9 O 1.0–9 cm3 0.996–9 0.99595 –9
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- Which is the higher temperature, 15C or 4F?Perform the following calculation: g g cm³ + 1.0042 8 cm³ What is the answer to the calculation above with the correct units and significant figures? O 0.995 g cm³ O 0.99520 O 0.9952 O 1.0 g cm³ g cm³ g cm3 -0.0090 JPerform the following calculation: (-0.00030-c xem x 27.5°C) + 1.0042 °C xcm3 What is the answer to the calculation above with the correct units and significant figures? O 1.0- cm3 0.9960 cm3 0.99600- cm3 0.996- cm3
- Perform the given calculation. You must round correctly and report the answer with the proper number of significant figures. 1.012×10−3 J/(0.012456 g)(298.3682−298.3567)KCalculate 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. -12Washington, D.C. has an average January temperature of 34.9 degrees Fahrenheit. What is this average if temp is expressed in Celsius? (Round to two decimal places.) [Hint: Conversion between Fahrenheit and Celsius is a linear transformation: Fahrenheit = Celsius*1.80 + 32, or Celsius = Fahrenheit*(1/1.80) - (32/1.80)]
- A student calibrated a 10-mL graduated cylinder using water. The empty graduated cylinder weighed 24.378 grams. When it was filled with 9.89 mL of deionized water, it weighed 33.826 grams. The temperature of the water was 21.8oC. What is the density of water, based on these measurements?© Macmillan Learning Perform the calculation and report the answer using the proper number of significant figures. Make sure the answer is rounded correctly. 1.012 × 10-³ J = (0.016456 g) (298.3682 298.3567) K g. KWhat is the boiling point of the unknown substance Xin K(Kelvin)? X(t) = X(g) AH-(kJ mol1) S°J mol1K1) X(g) -82.0 238 | X({) | -101 144 Express your answer in decimal notation rounded to three significant figures.
- Calculate the amount of heat needed to boil 11.8 g of hexane (CH4), beginning from a temperature of 57.0 "C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 XConsider a two-level system with €1 = 1.75 x 10-22 J and 2 = 3.50 x 10-21 J. Part A If 92 g2 Express your answer in kelvins. VGI ΑΣΦ T= Submit Part B 291, what value of T is required to obtain n2/m₁ = 0.200? T= = Submit C X Incorrect; Try Again; 4 attempts remaining Previous Answers Request Answer What value of T is required to obtain n2/n₁ = 0.820? Express your answer in kelvins. VE ΑΣΦ www Request Answer www ? ? K K47°F Mostly sunny ||| O MEASUREMENT AND MATTER Setting up a one-step unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. 20. mol kg Explanation = ? mol bll 7J8P3jH-lvWyv8WYLP6W0cqJcWJdIACROQwyw24GWHInZ2eqevgU6zfMwCeR1mXWLcvAsgD6uviUyW_5q27jYjsF Check Q Search x10 0.0 X н 3 L Ś 8 K © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Pr O