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1. Which one of...
Choose the one alternative that best completes the statement or answers the question. 1 kilogram =...
Choose the one alternative that best completes the statement or answers the question. 1 kilogram = 1000 milligrams 10,000 1 times 10^-6 1,00,000 1,000 None of the above. Of the objects below. ______ is the most dense. an object with a volume of 139 mL, and a mass of 93 g an object with a volume of 13 cm^3, and a mass of 1.29 times 10^3g an object with a volume of 2.5L, and a mass of 12.5 kg An...
i need help answering the table by tonight for my test!! thank you!! Trial 1 Prelaboratory...
i need help answering the table by tonight for my test!! thank
you!!
Trial 1 Prelaboratory Assignment 1. What is the primary standard used in this experiment? What is the molar mass of the primary standard? 2. Use the chemical formula for the primary standard to write the chemical reaction for the standardization of potassium permanganate. 3. What will indicate the endpoint of the titration? 4. A 0.495 g sample of iron containing salt required 20.22 mL of 0.0194 M...
please explain and help calculate the orange cirlced ones L in volume at STP 1. One...
please explain and help calculate the orange cirlced ones
L in volume at STP 1. One mole of an IDEAL GAS occupies a) 12.2 6) 22.4 c) 23.6 d) 40 (2What are the units for the molar volume of a gas? -a) Moles/liter -b) Liters/mole Grams/mole d) Moles/grams What is the gas produce in this experiment CaCO3+ HCI? a) O2 b) CO2 c) NO2 d) H2 e) Natural gas on: 2:23 los molhoz 4 When CaCO3 react with HCI, calculate...
Please help explain how to get these answers! I have a big test tomorrow and need...
Please help explain how to get these answers! I have a big
test tomorrow and need help. Please write clear. Thanks!!
Problem 4: Gases & Solids (26 pts) Around 100 km above the surface of the Earth, the pressure is a low 3.2 x 104 mbar, while the temperature is an unexpectedly comfortable 300 K A balloon containing this sample is 40,582 L under these conditions. What is this balloon's volume (in ml) at Earth's surface-around 298 K and 1...
please show me how to get the correct answers in preperation for my upcoming exam 8.)...
please show me how to get the correct answers in preperation
for my upcoming exam
8.) A 9.) D
8. A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at 28°C and 810 mm Hq. Calculate the number of CO molecules in the flask. The vapor pressure of water at 28°C is 28.3 mm Hg. A. 5.0 x 1022 B. 5.2 x 1022 C. 3.8 x 1023 E. 3.8 x 1025 D. 5.4...
Can I have help with finding the equilibrium concentration in the following question: (can you please...
Can I have help with finding the equilibrium concentration in
the following question: (can you please go step by step through the
answer)
A19. The equilibrium constant, Ke, for the decomposition reaction of nitrogen monoxide is 2.5 x 103 at 2010 K. 2N0(g) = N2(g) + O2(g) At this temperature, the equilibrium concentration of N2 is 0.28 mol L and of O2 is 0.38 mol L. Calculate the equilibrium concentration of NO (A) 1.8x 10 mol L-1 (B) 4.3×10-5 mol...
Can I please have a detailed explanation of Question a and c only ( Please clear...
Can I please have a detailed
explanation of Question a and c only ( Please clear handwriting
)
Question 1 (no working required in parts (a) and (b)) (a) Consider the following formulae for a volume V in terms of lengths x and Other qu antities are dimensionless : Write down which one of the above is not dimensionally homogeneous b) Write down which one of the following is in units of pressure: (A) J m-2 (B) Pa m-2 (C)...
Explain how you get the answers for 1,2,3,4 1. Which of the following solubility product expressions...
Explain how you get the answers for 1,2,3,4
1. Which of the following solubility product expressions is incorrect? d. Aul, K, = [AT][I-] 2. At 25°C, 1.4x 10-mole of Cd(OH) dissolves to give 1.0 liter of saturated aqueous solution. What is the solubility product for Cd(OH)2? a. 1.7 x 10- b. 2.9 x 10 C. 1.1 x 10-4 d. 5.8 x 10-1 e. 4.1 x 10-2 3. IfX the molar solubility (mol/L) of Ni(OH)a, which of the following represents the...
please explain how you got your all your answers 5. Which one of the following conditions...
please explain how you got your all your answers
5. Which one of the following conditions is always TRUE for a titration of a WEAK ACID with a STRONG BASE? a. A colored indicator with a pka less than 7 should be used. b. Equal volumes of weak acid and strong base are required to reach the equivalence point. c. The equivalence point occurs at a pH equal to 7. d. The equivalence point occurs at a pH greater than...
please show me how to get the correct answer in preperation for my upcoming exam 1.)...
please show me how to get the correct answer in preperation for my
upcoming exam
1.) B 3.) D 4.) C
Chemistry 1171 Practice Exam 3 (Chapter 5 & 6) 1. If 30.0 L of oxygen are cooled at constant pressure from 200°C to 1°C, what is the new volume of oxygen? A. 0.150 L B . 17.4 L c . 23.0L D. 51.8 L E. 6.00 x 10 L 3. At what temperature will a fixed amount of gas...
Choose the one alternative that best completes the statement or answers the question. 1 kilogram = 1000 milligrams 10,000 1 times 10^-6 1,00,000 1,000 None of the above. Of the objects below. ______ is the most dense. an object with a volume of 139 mL, and a mass of 93 g an object with a volume of 13 cm^3, and a mass of 1.29 times 10^3g an object with a volume of 2.5L, and a mass of 12.5 kg An...
i need help answering the table by tonight for my test!! thank
you!!
Trial 1 Prelaboratory Assignment 1. What is the primary standard used in this experiment? What is the molar mass of the primary standard? 2. Use the chemical formula for the primary standard to write the chemical reaction for the standardization of potassium permanganate. 3. What will indicate the endpoint of the titration? 4. A 0.495 g sample of iron containing salt required 20.22 mL of 0.0194 M...
please explain and help calculate the orange cirlced ones
L in volume at STP 1. One mole of an IDEAL GAS occupies a) 12.2 6) 22.4 c) 23.6 d) 40 (2What are the units for the molar volume of a gas? -a) Moles/liter -b) Liters/mole Grams/mole d) Moles/grams What is the gas produce in this experiment CaCO3+ HCI? a) O2 b) CO2 c) NO2 d) H2 e) Natural gas on: 2:23 los molhoz 4 When CaCO3 react with HCI, calculate...
Please help explain how to get these answers! I have a big
test tomorrow and need help. Please write clear. Thanks!!
Problem 4: Gases & Solids (26 pts) Around 100 km above the surface of the Earth, the pressure is a low 3.2 x 104 mbar, while the temperature is an unexpectedly comfortable 300 K A balloon containing this sample is 40,582 L under these conditions. What is this balloon's volume (in ml) at Earth's surface-around 298 K and 1...
please show me how to get the correct answers in preperation
for my upcoming exam
8.) A 9.) D
8. A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at 28°C and 810 mm Hq. Calculate the number of CO molecules in the flask. The vapor pressure of water at 28°C is 28.3 mm Hg. A. 5.0 x 1022 B. 5.2 x 1022 C. 3.8 x 1023 E. 3.8 x 1025 D. 5.4...
Can I have help with finding the equilibrium concentration in
the following question: (can you please go step by step through the
answer)
A19. The equilibrium constant, Ke, for the decomposition reaction of nitrogen monoxide is 2.5 x 103 at 2010 K. 2N0(g) = N2(g) + O2(g) At this temperature, the equilibrium concentration of N2 is 0.28 mol L and of O2 is 0.38 mol L. Calculate the equilibrium concentration of NO (A) 1.8x 10 mol L-1 (B) 4.3×10-5 mol...
Can I please have a detailed
explanation of Question a and c only ( Please clear handwriting
)
Question 1 (no working required in parts (a) and (b)) (a) Consider the following formulae for a volume V in terms of lengths x and Other qu antities are dimensionless : Write down which one of the above is not dimensionally homogeneous b) Write down which one of the following is in units of pressure: (A) J m-2 (B) Pa m-2 (C)...
Explain how you get the answers for 1,2,3,4
1. Which of the following solubility product expressions is incorrect? d. Aul, K, = [AT][I-] 2. At 25°C, 1.4x 10-mole of Cd(OH) dissolves to give 1.0 liter of saturated aqueous solution. What is the solubility product for Cd(OH)2? a. 1.7 x 10- b. 2.9 x 10 C. 1.1 x 10-4 d. 5.8 x 10-1 e. 4.1 x 10-2 3. IfX the molar solubility (mol/L) of Ni(OH)a, which of the following represents the...
please explain how you got your all your answers
5. Which one of the following conditions is always TRUE for a titration of a WEAK ACID with a STRONG BASE? a. A colored indicator with a pka less than 7 should be used. b. Equal volumes of weak acid and strong base are required to reach the equivalence point. c. The equivalence point occurs at a pH equal to 7. d. The equivalence point occurs at a pH greater than...
please show me how to get the correct answer in preperation for my
upcoming exam
1.) B 3.) D 4.) C
Chemistry 1171 Practice Exam 3 (Chapter 5 & 6) 1. If 30.0 L of oxygen are cooled at constant pressure from 200°C to 1°C, what is the new volume of oxygen? A. 0.150 L B . 17.4 L c . 23.0L D. 51.8 L E. 6.00 x 10 L 3. At what temperature will a fixed amount of gas...
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