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Calculate the osmolarity of 0.39 M NaCO solution. Submit numeric answer only with correct number of...
answer with two sig figs scientific notation QB 15.10 Level 1 Homework. Unanswered In an aqueous...
answer with two sig figs scientific notation
QB 15.10 Level 1 Homework. Unanswered In an aqueous solution, if the [OH-] is 7.5E-9 M what is the [H30+)? 0 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 105) Numeric Answer: Unanswered . 2 attempts left Submit In an aqueous solution, if the [H3O+] is 7.1E-9 M what is the [OH-]? Respond with the correct...
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...
What is the molarity when 47 g of KCl dissolved in enough water to give 375...
What is the molarity when 47 g of KCl dissolved in enough water to give 375 ml of solution? Provide numeric answer (no letters or units) with correct number of sig figs. (for example: if your answer is 1.234 M, you must type it as 1.234E0.) Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.SES for 2.5 x 10" Numeric Answer
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...
*Remember to submit each part separately to avoid losing your work* A 0.100 M solution of...
*Remember to submit each part separately to avoid losing your work* A 0.100 M solution of an unknown acid, HA, is 3.87% ionized. Complete the following table, but instead of using the variable x, calculate the number values of each quantity and report these values to the correct number of significant figures. Fill in all of the cells. Include signs in the Change column to indicate a gain or loss of concentration. Do not include any units in your answers,...
What is the pH of a 0.67 M HBr solution? © Respond with the correct number...
What is the pH of a 0.67 M HBr solution? © Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5e5 for 25 x 10 Type your response
Study Example 8.1 on page 321. Then, calculate the molarity of a solution made by adding...
Study Example 8.1 on page 321. Then, calculate the molarity of a solution made by adding 5.57 g of CaCl2 to enough water to create a solution with a total volume of 2.50 L. Enter only a numerical value in the correct number of significant figures. Use the Periodic Table that is part of your exam to calculate molar mass. Do not enter units in the answer box, but know that the symbol for the unit of this calculation is...
(6 pts) Give your answer in the correct number of de fiets scientific notation only when...
(6 pts) Give your answer in the correct number of de fiets scientific notation only when we wse your calculator if you wish but remember that your calculator does NOT figure our sig. fig. A. 48.32 - 48.31 = B. 7.5+5.3 7.83 4.64 x 10-39 39.86 x 1042 x 21.6 x 10-28 8.(2 pts) Do the following calculations. Treat all the numbers as being "exact". Ans. 8-5x 3 + 7 (5+ 3) + 2 = 9. (2 pts) Solve for...
Please give detailed answer and correct number of answers and sig figs please!! File Edit View...
Please give detailed answer and correct number of answers and
sig figs please!!
File Edit View Favorites Tools Help Physics 107 Spring 2019 Apanasevich HW 00 - Phys 105 Review Problem 16.63 Review 1 Constants PartA You are slanding 2 50 n directly in front af one of the two loudapeakers shown in the figure. They are 3.00 m apert and both are playing a 636 Hz tone in phase. Flaure 1) As you begin to walk directly away from...
That is 23.0% where the cursor is. Correct Significant Figures Feedback: Your answer 949.21 m was...
That is 23.0% where the cursor is.
Correct Significant Figures Feedback: Your answer 949.21 m was either rounded differently or used a different number of significant figures than required for this part If you need this result for any later calculation in this item, keep all the digits and round as the final step before submiting your answer. Constants The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by...
answer with two sig figs scientific notation
QB 15.10 Level 1 Homework. Unanswered In an aqueous solution, if the [OH-] is 7.5E-9 M what is the [H30+)? 0 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 105) Numeric Answer: Unanswered . 2 attempts left Submit In an aqueous solution, if the [H3O+] is 7.1E-9 M what is the [OH-]? Respond with the correct...
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...
What is the molarity when 47 g of KCl dissolved in enough water to give 375 ml of solution? Provide numeric answer (no letters or units) with correct number of sig figs. (for example: if your answer is 1.234 M, you must type it as 1.234E0.) Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.SES for 2.5 x 10" Numeric Answer
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...
What is the pH of a 0.67 M HBr solution? © Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5e5 for 25 x 10 Type your response
Study Example 8.1 on page 321. Then, calculate the molarity of a solution made by adding 5.57 g of CaCl2 to enough water to create a solution with a total volume of 2.50 L. Enter only a numerical value in the correct number of significant figures. Use the Periodic Table that is part of your exam to calculate molar mass. Do not enter units in the answer box, but know that the symbol for the unit of this calculation is...
(6 pts) Give your answer in the correct number of de fiets scientific notation only when we wse your calculator if you wish but remember that your calculator does NOT figure our sig. fig. A. 48.32 - 48.31 = B. 7.5+5.3 7.83 4.64 x 10-39 39.86 x 1042 x 21.6 x 10-28 8.(2 pts) Do the following calculations. Treat all the numbers as being "exact". Ans. 8-5x 3 + 7 (5+ 3) + 2 = 9. (2 pts) Solve for...
Please give detailed answer and correct number of answers and
sig figs please!!
File Edit View Favorites Tools Help Physics 107 Spring 2019 Apanasevich HW 00 - Phys 105 Review Problem 16.63 Review 1 Constants PartA You are slanding 2 50 n directly in front af one of the two loudapeakers shown in the figure. They are 3.00 m apert and both are playing a 636 Hz tone in phase. Flaure 1) As you begin to walk directly away from...
That is 23.0% where the cursor is.
Correct Significant Figures Feedback: Your answer 949.21 m was either rounded differently or used a different number of significant figures than required for this part If you need this result for any later calculation in this item, keep all the digits and round as the final step before submiting your answer. Constants The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by...
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