DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!!
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!! QUESTION 7 Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 0.5 points Save Answer A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 °C to 68.9...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
1) the kinetic energy of a 15.2 kg object traveling at 8.49 m/s is ___ J. 2) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. The specific heat of the substance is ___ J/g oC. 3) A 437.2 g sample of an unknown substance requires 8460 J to increase its temperature from 19.3 oC to 68.9 oC. According to table 5.1 in the text, the sample may...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!! QUESTION 1 Save Answer Calculate the density of freon -12 (CF2Cl2) at 26.3 °C and 0.695 atm. density = _ g/L QUESTION 2 Save Answer What volume of O2 (at 0.916 atm and 20.3 °C) is produced by the decomposition of 4.52 kg of Hgo? 2 HgO(s) --> 2 Hg(1) + O2(g) V= __L
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!! QUESTION 3 2 points Save Answer Automobile airbags are inflated by the rapid decomposition of sodium azide (NaN3). 2 NaN3(s) --> 2 Na(s) + 3 N2(g) What volume of N2 gas, at 0.984 atm and 20.3 °C, is produced by the complete decomposition of 127.6 g of sodium azide? V= __L QUESTION 4 1 points Save Answer What is the...
DO ALL PARTS OF THE QUESTION AND USE SIGNIFICANT FIGURES!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU!!!! QUESTION 5 2 points Save Answer Calculate the pressure of a 0.00126 mol of CCl4 vapor that occupies 24.7 L at 20.1 °C if the vapor is treated as a van der Waals gas. (a = 20.4 atm L2 mol-2, b = 0.1383 L mol-1, p= _ Torr QUESTION 6 1 points Save Answer the kinetic energy of a 18...
please write clearly and use significant figures. thanks in advance 3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/gºC. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling...
DO ALL PARTS AND SHOW ALL STEPS CLEARLY NO BAD HANDWRITING. USE SIGNIFICANT FIGURES. IF YOU DON'T DO THIS I WILL DOWNVOTE YOU QUESTION 4 1 points Save Answer A fixed sample of gas exerts a pressure of 640 Torr at 322 K. What will the pressure be (in atm) if the temperature is reduced to 162 K(assuming the volume is held constant)? p = __ atm QUESTION 5 Save Answer A fixed sample of gas occupies 18.6 L at...
DO ALL PARTS AND SHOW ALL STEPS CLEARLY NO BAD HANDWRITING. USE SIGNIFICANT FIGURES. IF YOU DON'T DO THIS I WILL DOWNVOTE YOU QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S gas can be generated from 14.4 mL of 0.447 M HCl and an excess of FeS? V=_ml
DO ALL PARTS AND SHOW ALL STEPS CLEARLY NO BAD HANDWRITING. USE SIGNIFICANT FIGURES. IF YOU DON'T DO THIS I WILL DOWNVOTE YOU QUESTION 6 1 points Save Answer How many moles of gas are contained in a sample of gas that occupies 20.3 L at 0.87 atm and 320.4 K? QUESTION 7 2 points Save Answer H2S (g) can be generated by the following reaction: 2 HCl(aq) + Fes(s) → FeCl2(aq) + H2S(g) What volume (at STP) of H2S...