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hello are my calculations correct especially the amount of
significant figures for the answer
moles of...
can someone please explain how to solve this problem it's slightyly confusing. So far I understand...
can someone please explain how to solve this problem it's
slightyly confusing. So far I understand how to set it up but the
calculations towards the answer is where im lost
thank you
In a typical gas experiment, a student measured the volume and pressure of a gas generated as 37.45 mL and 21.78 torr, respectively. If the temperature for the day was 31.9 °C, what is the volume of this gas at STP? P, 21.78 torr V, 37.45 mL...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mas...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mass of magnesium sample 2. Volume of hydrogen 3. Temperature of hydrogen 4. Temperature of water 5. Barometric pressure 6. Difference in water levels 7. Aqueous vapor pressure CALCULATIONS: SHOW COMPLETE "SET-UPS" (and the rounding off) FOR ALL CALCULATIONS on the back of this aml 30.46mmg 14: 6cm page or on a separate sheet. Report results to the correct number of significant figures...
please answer all, and type please Problems and questions (show all calculations, correct significant figures and...
please answer all, and type please
Problems and questions (show all calculations, correct significant figures and units) 1. Why is it important to test the crucible for cracks before heating it? 2. Write the correct balanced equation for the dehydration (removal of water) of the magnesium sulfate hydrate obtained in Procedure B of this experiment. 3. How many moles are in 70.0 grams of potassium hydroxide? 4. A compound is formed when 0.300 moles of barium combine with 0.600 moles...
Answer all questions using the correct number of significant figures and correct units. Show all work....
Answer all questions using the correct number of significant figures and correct units. Show all work. (a) Write the balanced molecular and ionic equations, indicating the state of each species in each equation, for the reaction between Mg(s) and HCl(aq): 1. MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 2. Using the definitions for decimeter (dm), centimeter (cm), and...
Show your work, include units, and report the correct number of significant figures for all calculations....
Show your work, include units, and report the correct number of significant figures for all calculations. 1. The molal freezing point depression constant (K) for p-dichlorobenzene is 7.10°C/m and its normal freezing point (f.p.) is 53.10°C. When 0.209 g of an unknown solute is dissolved in 4.00 g of p-dichlorobenzene, the f.p. is lowered to 50.20°C. Refer to the Introduction and Data Sheet to solve the following problems. °C. a) The f.p. depression (AT) is b) Calculate the molality (m)...
Please answer with the correct amount of significant figures. Thank you!! A simple pendulum has a...
Please answer with the correct amount of significant
figures. Thank you!!
A simple pendulum has a mass of 0.650 kg and a length of 7.00 m. It is displaced through an angle of 8.0° and then released. Using the analysis model of a particle in simple harmonic motion, calculate the following. (Give your answer to the thousandths place.) (a) What is the maximum speed of the bob? m/s 4.0 (b) What is the maximum angular acceleration of the bob? |...
Calculations: SHOW WORK on separate paper. Use correct number of significant figures and report units with...
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...
63.54 am Submit My Answers Give Up Correct significant Figures Feedback: Your answer 63.543925 amu was...
63.54 am Submit My Answers Give Up Correct significant Figures Feedback: Your answer 63.543925 amu was either rounded differently or used ac t B The astronaut then measures the abundance of magnesium on the new planet, obtaining the follwing results Abundance Mass isotope! (%) lants) Mg 78.99 23.99 Mg 10.00 24.99 Mg 11.01 25.98 What is the atomic mass of magnesium for this planet? Express your anewer to two decimal places, and Include the appropriate units. Hinte 27.439719 amu Incorrect:...
Date Answer all questions using the correct number of significant figures and correct units. Show all...
Date Answer all questions using the correct number of significant figures and correct units. Show all work 1. (a) Write the balanced molecular and ionic equations, indicating the state of each species in cach equation, for the reaction between Mg(s) and HCl(aq): MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 1. Using the definitions for decimeter (dm), centimeter (cm),...
Could someone look over this for me and see if my answers are correct. Thanks. Font...
Could someone look over this for me and see if my answers are
correct. Thanks.
Font Paragraph Styles Data Table 1: Model Air Bag Activity Data and Calculations 1.20 L Volume of 6x 9 inch bag Room temperature RT in K 22273- 295 K 30, . 25.4mm/1.00" * 1.00atm/760mm= 762/760= Room pressure (in atm) 1atm Moles of CO2 required to inflate bag at room temperature and pressure n-(1 atm 1.2L)/ (.0821 .05 moles 295K)-049 Balanced equation for the reaction of...
can someone please explain how to solve this problem it's
slightyly confusing. So far I understand how to set it up but the
calculations towards the answer is where im lost
thank you
In a typical gas experiment, a student measured the volume and pressure of a gas generated as 37.45 mL and 21.78 torr, respectively. If the temperature for the day was 31.9 °C, what is the volume of this gas at STP? P, 21.78 torr V, 37.45 mL...
RECORD ALL DATA IN INK using the correc t number of significant figures and correct units. 1. Mass of magnesium sample 2. Volume of hydrogen 3. Temperature of hydrogen 4. Temperature of water 5. Barometric pressure 6. Difference in water levels 7. Aqueous vapor pressure CALCULATIONS: SHOW COMPLETE "SET-UPS" (and the rounding off) FOR ALL CALCULATIONS on the back of this aml 30.46mmg 14: 6cm page or on a separate sheet. Report results to the correct number of significant figures...
please answer all, and type please
Problems and questions (show all calculations, correct significant figures and units) 1. Why is it important to test the crucible for cracks before heating it? 2. Write the correct balanced equation for the dehydration (removal of water) of the magnesium sulfate hydrate obtained in Procedure B of this experiment. 3. How many moles are in 70.0 grams of potassium hydroxide? 4. A compound is formed when 0.300 moles of barium combine with 0.600 moles...
Answer all questions using the correct number of significant figures and correct units. Show all work. (a) Write the balanced molecular and ionic equations, indicating the state of each species in each equation, for the reaction between Mg(s) and HCl(aq): 1. MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 2. Using the definitions for decimeter (dm), centimeter (cm), and...
Show your work, include units, and report the correct number of significant figures for all calculations. 1. The molal freezing point depression constant (K) for p-dichlorobenzene is 7.10°C/m and its normal freezing point (f.p.) is 53.10°C. When 0.209 g of an unknown solute is dissolved in 4.00 g of p-dichlorobenzene, the f.p. is lowered to 50.20°C. Refer to the Introduction and Data Sheet to solve the following problems. °C. a) The f.p. depression (AT) is b) Calculate the molality (m)...
Please answer with the correct amount of significant
figures. Thank you!!
A simple pendulum has a mass of 0.650 kg and a length of 7.00 m. It is displaced through an angle of 8.0° and then released. Using the analysis model of a particle in simple harmonic motion, calculate the following. (Give your answer to the thousandths place.) (a) What is the maximum speed of the bob? m/s 4.0 (b) What is the maximum angular acceleration of the bob? |...
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...
63.54 am Submit My Answers Give Up Correct significant Figures Feedback: Your answer 63.543925 amu was either rounded differently or used ac t B The astronaut then measures the abundance of magnesium on the new planet, obtaining the follwing results Abundance Mass isotope! (%) lants) Mg 78.99 23.99 Mg 10.00 24.99 Mg 11.01 25.98 What is the atomic mass of magnesium for this planet? Express your anewer to two decimal places, and Include the appropriate units. Hinte 27.439719 amu Incorrect:...
Date Answer all questions using the correct number of significant figures and correct units. Show all work 1. (a) Write the balanced molecular and ionic equations, indicating the state of each species in cach equation, for the reaction between Mg(s) and HCl(aq): MOLECULAR: TOTAL IONIC: NET IONIC: (b) If 0.050 mol magnesium metal reacts with HCl(aq), how many moles of hydrogen gas are formed? Assume hydrogen to be an ideal gas. 1. Using the definitions for decimeter (dm), centimeter (cm),...
Could someone look over this for me and see if my answers are
correct. Thanks.
Font Paragraph Styles Data Table 1: Model Air Bag Activity Data and Calculations 1.20 L Volume of 6x 9 inch bag Room temperature RT in K 22273- 295 K 30, . 25.4mm/1.00" * 1.00atm/760mm= 762/760= Room pressure (in atm) 1atm Moles of CO2 required to inflate bag at room temperature and pressure n-(1 atm 1.2L)/ (.0821 .05 moles 295K)-049 Balanced equation for the reaction of...
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