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10 10 points Which of the following would be a correct expression for the number 15,800,000...
Calculate the density of a substance for which 2.0 x 10-6 L of the substance has...
Calculate the density of a substance for which 2.0 x 10-6 L of the substance has a mass of 1.58 x 10-6 kg. Express your answer using the correct number of significant figures, and do not enter your answer using scientific notation.
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 10") How many moles of oxygen atoms are in 5.3E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. .- Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit...
Bonus points Solve the following problems and express the results in scientific notation with the correct...
Bonus points Solve the following problems and express the results in scientific notation with the correct number of significant figures (1 mark each) a) b) c) (3.968) + (8.000) + (4.210% 10%) + (1496.) (6.543 × 10^9)x (7.2 x 10?)/(4.71096) (3.33 x 104) * (4.9283 * 10)
USE CORRECT SIG FIGS AND SCIENTIFIC NOTATION Determine the molar (M) concentration of a solution made...
USE CORRECT SIG FIGS AND SCIENTIFIC NOTATION
Determine the molar (M) concentration of a solution made by dissolving 7.714E1 g of CaCl2 in sufficient water to make 250.0 mL of solution. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 105) Numeric Answer: Determine the number of grams of potassium permanganate present in 5.25E1 mL of a 0.250 M KMnO4(aq) solution. 0 Respond with the...
Be sure to answer all parts. Be sure to report your answer to the correct number...
Be sure to answer all parts. Be sure to report your answer to the correct number of significant figures. Calculate AG and Kp for the following processes at 25°C: (a) H2(g) + Br2(1) 211B10 0 AG- k.I/mol x 10 (Enter your answer in scientific notation.) (b) , H2(g) + , Br2() HBr(g) 0 AG k.J/mol Кр Enter your answer in scientific notation.) × 10
Express the following number in correct exponential (scientific) notation. 5000.5 x 103
Express the following number in correct exponential (scientific) notation. 5000.5 x 103
Complete the following operations by filling in the value of the exponent for the result: 1...
Complete the following operations by filling in the value of the exponent for the result: 1 = 10 10 105 (109) (10-) = 10 107 10-9 = 10 (105) * = 10 It is often necessary to do calculations using scientific notation when working chemistry problems. For practice, perform each of the following calculations. (2.40 x 10") (6.21 x 10") = 8.28 x 10-4 1.20 x 10 (5.09 x 10") (3.22 x 10-4) (6.21 x 10°) (8.28 x 10-4) neue...
Calculate the number of moles equivalent to 5.4 x 1023 atoms of helium. Note: Be sure...
Calculate the number of moles equivalent to 5.4 x 1023 atoms of helium. Note: Be sure to use the correct number of significant figures. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimaleg 2.55 for 2.5 x 107 Numeric Answer:
help QUESTION 14 Which of the following expressions is the correct equilibrium-constant expression for the reaction...
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QUESTION 14 Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4(s) + 5 O2(g) = P4010(5) [P4010] [P][0,1/5 O [021-5 O [02]5 [P][021 OP 010) [P4010] [P[021 QUESTION 15 A particular reaction has an activation energy. E. of 148 kJ/mol. If the rate constant for the reaction is 0.00387 3 582 °C, at what temperature in°C) would the rate constant be 0.487 s 111? *Please report 3 significant figures. Numbers only, no unit....
Scan for Multimedia Name: L Practice & Problem Solving 0 Leveled Practice in 7 and 8,...
Scan for Multimedia Name: L Practice & Problem Solving 0 Leveled Practice in 7 and 8, perform the operation and express your answer in scientific notation. 7. (7 x 10-57 x 10-6 8. (3.76 10%) + (7.44 x 105) on 605.05 4.9 x 10 12 1.12 x 105 12 02 120 9. What is the value of n in the equation 1.9 X 107 = (1 X 105(1.9 x 10")? 10. Find (5.3 X 10%) - (8 x 102). Express...
How many atoms of hydrogen are in 2.22E+1 g of methane? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 10") How many moles of oxygen atoms are in 5.3E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. .- Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit...
Bonus points Solve the following problems and express the results in scientific notation with the correct number of significant figures (1 mark each) a) b) c) (3.968) + (8.000) + (4.210% 10%) + (1496.) (6.543 × 10^9)x (7.2 x 10?)/(4.71096) (3.33 x 104) * (4.9283 * 10)
USE CORRECT SIG FIGS AND SCIENTIFIC NOTATION
Determine the molar (M) concentration of a solution made by dissolving 7.714E1 g of CaCl2 in sufficient water to make 250.0 mL of solution. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 105) Numeric Answer: Determine the number of grams of potassium permanganate present in 5.25E1 mL of a 0.250 M KMnO4(aq) solution. 0 Respond with the...
Be sure to answer all parts. Be sure to report your answer to the correct number of significant figures. Calculate AG and Kp for the following processes at 25°C: (a) H2(g) + Br2(1) 211B10 0 AG- k.I/mol x 10 (Enter your answer in scientific notation.) (b) , H2(g) + , Br2() HBr(g) 0 AG k.J/mol Кр Enter your answer in scientific notation.) × 10
Complete the following operations by filling in the value of the exponent for the result: 1 = 10 10 105 (109) (10-) = 10 107 10-9 = 10 (105) * = 10 It is often necessary to do calculations using scientific notation when working chemistry problems. For practice, perform each of the following calculations. (2.40 x 10") (6.21 x 10") = 8.28 x 10-4 1.20 x 10 (5.09 x 10") (3.22 x 10-4) (6.21 x 10°) (8.28 x 10-4) neue...
Calculate the number of moles equivalent to 5.4 x 1023 atoms of helium. Note: Be sure to use the correct number of significant figures. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimaleg 2.55 for 2.5 x 107 Numeric Answer:
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QUESTION 14 Which of the following expressions is the correct equilibrium-constant expression for the reaction below? P4(s) + 5 O2(g) = P4010(5) [P4010] [P][0,1/5 O [021-5 O [02]5 [P][021 OP 010) [P4010] [P[021 QUESTION 15 A particular reaction has an activation energy. E. of 148 kJ/mol. If the rate constant for the reaction is 0.00387 3 582 °C, at what temperature in°C) would the rate constant be 0.487 s 111? *Please report 3 significant figures. Numbers only, no unit....
Scan for Multimedia Name: L Practice & Problem Solving 0 Leveled Practice in 7 and 8, perform the operation and express your answer in scientific notation. 7. (7 x 10-57 x 10-6 8. (3.76 10%) + (7.44 x 105) on 605.05 4.9 x 10 12 1.12 x 105 12 02 120 9. What is the value of n in the equation 1.9 X 107 = (1 X 105(1.9 x 10")? 10. Find (5.3 X 10%) - (8 x 102). Express...
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