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54.9 mL isopropanol 100 Part C How many liters of a 4.00 M K SO4 solution...
1. A solution of rubbing alcohol is 76.5 % (v/v) isopropanol in water. How many milliliters...
1. A solution of rubbing alcohol is 76.5 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 77.5 mL sample of the rubbing alcohol solution? Express your answer to three significant figures. 2. How many liters of a 3.18 M K2SO4 solution are needed to provide 98.8 g of K2SO4 (molar mass 174.01 g/mol)? Recall that M is equivalent to mol/L. Express your answer to three significant figures.
1) A solution of rubbing alcohol is 69.0 % (v/v) isopropanol in water. How many milliliters...
1) A solution of rubbing alcohol is 69.0 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 88.8 mL sample of the rubbing alcohol solution? Express your answer to three significant figures. 2) How many liters of a 3.06 M K2SO4 solution are needed to provide 83.8 g of K2SO4 (molar mass 174.01 g/mol)? Recall that M is equivalent to mol/L. Express your answer to three significant figures.
Part A How many liters of a 0.10% (m/v) KCHIV solution can be prepared from 3.0...
Part A How many liters of a 0.10% (m/v) KCHIV solution can be prepared from 3.0 L of a 35% (m/v) stock solution? Express your answer in liters to two significant figures. IVO AXPO Volume = 10 Submit Previous Answers Request Answer X Incorrect: Try Again
both please How many moles of helium are in the tank? Express your answer using three...
both please
How many moles of helium are in the tank? Express your answer using three significant figures. Constants A 12.0 L tank contains 4.46x104 kg of helium at 19.0 °C. The molar mass of helium is 4.00 g/mol. You may want to review (Pages 585-590) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume n-61.25 mol SubmitP Previous Answers Reguest Ans X Incorrect, Try Again; 8 attempts remaining: no points deducted...
Part B A solution of water (kr = 1.86°C/m) and glucose freezes at - 415°C What...
Part B A solution of water (kr = 1.86°C/m) and glucose freezes at - 415°C What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 °C Express your answer to three significant figures and include the appropriate units. View Available Hint(s) m= 2.34 m Submit Previous Answers X Incorrect: Try Again: 5 attempts remaining Part A solution of water (K = 0.512 °C/m) and glucose boils at 101.56 °C. What...
A volume of 100 mL of a 0.440 M HNO; solution is titrated with 0.760 M...
A volume of 100 mL of a 0.440 M HNO; solution is titrated with 0.760 M KOH. Calculate the volume of KOH required to reach the equivalence point. Express your answer to three significant figures, and include the appropriate units. View Available Hint(s) H ? 6.32 mL Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining
A. How many liters of H2S gas could be generated at STP from the reaction of...
A. How many liters of H2S gas could be
generated at STP from the reaction of dilute HCl with 15.55 kg of
an ore that is 15.7 % iron(II) sulfide by mass?
C. A mass of 0.3976 gof ore was dissolved in
I−(aq). The resulting solution required 17.98 mLof 0.01043
MNa2S2O3for complete titration. What is the percentage of copper in
the ore? Express your answer to four significant figures and
include the appropriate units.
Use and preparation of hydrogen sulfide...
Part C For 250.0 mL of a buffer solution that is 0.290 M in CH3 CH2NH2...
Part C For 250.0 mL of a buffer solution that is 0.290 M in CH3 CH2NH2 and 0.260 M in CH3CH2NH3 C1, calculate the initial pH and the final pH after adding 0.005 mol of NaOH. Express your answers using two decimal places separated by a comma. EVO A£Q R O 2 ? pHmitial, pHimal = 10.68,10.8 Submit Previous Answers Request Answer X Incorrect; Try Again; 12 attempts remaining
Part C - Calculating the moment about AB using the position vector BC As shown in...
Part C - Calculating the moment about AB using the position vector BC As shown in the figure, the member is anchored at A and 1.6 m, 1 1.7m, and z1 1.6 m. The force applied Figure 1) section AB lies in the x-y plane. The dimensions are c Using the position vector from B to C, calculate the moment about segment AB due to force F Express the individual components to three significant figures, if necessary, separated by commas....
amView?assignmentProblemID=125251857&offset=next ording to Part A How many liters of gas would be formed at 430 °C...
amView?assignmentProblemID=125251857&offset=next ording to Part A How many liters of gas would be formed at 430 °C and 1.00 atm pressure by explosion of 500 g of NH, NO,? O AEC Vous = 885.08 Submit Previous Answers Request Answer * Incorrect; Try Again; 5 attempts remaining Provide Feedback € > c ses ngchemistry.com/myct/itemview?assignmentProblemi <P 9 Problem 9.71: Section Problem Ammonium nitrate can decompose explosively when heated according to the equation 2NH4NO3(s) 2 N2(g) + 4H2O(g) + O2(9) Part A How ma...
Part A How many liters of a 0.10% (m/v) KCHIV solution can be prepared from 3.0 L of a 35% (m/v) stock solution? Express your answer in liters to two significant figures. IVO AXPO Volume = 10 Submit Previous Answers Request Answer X Incorrect: Try Again
both please
How many moles of helium are in the tank? Express your answer using three significant figures. Constants A 12.0 L tank contains 4.46x104 kg of helium at 19.0 °C. The molar mass of helium is 4.00 g/mol. You may want to review (Pages 585-590) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume n-61.25 mol SubmitP Previous Answers Reguest Ans X Incorrect, Try Again; 8 attempts remaining: no points deducted...
Part B A solution of water (kr = 1.86°C/m) and glucose freezes at - 415°C What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 °C Express your answer to three significant figures and include the appropriate units. View Available Hint(s) m= 2.34 m Submit Previous Answers X Incorrect: Try Again: 5 attempts remaining Part A solution of water (K = 0.512 °C/m) and glucose boils at 101.56 °C. What...
A volume of 100 mL of a 0.440 M HNO; solution is titrated with 0.760 M KOH. Calculate the volume of KOH required to reach the equivalence point. Express your answer to three significant figures, and include the appropriate units. View Available Hint(s) H ? 6.32 mL Submit Previous Answers X Incorrect; Try Again; 4 attempts remaining
A. How many liters of H2S gas could be
generated at STP from the reaction of dilute HCl with 15.55 kg of
an ore that is 15.7 % iron(II) sulfide by mass?
C. A mass of 0.3976 gof ore was dissolved in
I−(aq). The resulting solution required 17.98 mLof 0.01043
MNa2S2O3for complete titration. What is the percentage of copper in
the ore? Express your answer to four significant figures and
include the appropriate units.
Use and preparation of hydrogen sulfide...
Part C For 250.0 mL of a buffer solution that is 0.290 M in CH3 CH2NH2 and 0.260 M in CH3CH2NH3 C1, calculate the initial pH and the final pH after adding 0.005 mol of NaOH. Express your answers using two decimal places separated by a comma. EVO A£Q R O 2 ? pHmitial, pHimal = 10.68,10.8 Submit Previous Answers Request Answer X Incorrect; Try Again; 12 attempts remaining
Part C - Calculating the moment about AB using the position vector BC As shown in the figure, the member is anchored at A and 1.6 m, 1 1.7m, and z1 1.6 m. The force applied Figure 1) section AB lies in the x-y plane. The dimensions are c Using the position vector from B to C, calculate the moment about segment AB due to force F Express the individual components to three significant figures, if necessary, separated by commas....
amView?assignmentProblemID=125251857&offset=next ording to Part A How many liters of gas would be formed at 430 °C and 1.00 atm pressure by explosion of 500 g of NH, NO,? O AEC Vous = 885.08 Submit Previous Answers Request Answer * Incorrect; Try Again; 5 attempts remaining Provide Feedback € > c ses ngchemistry.com/myct/itemview?assignmentProblemi <P 9 Problem 9.71: Section Problem Ammonium nitrate can decompose explosively when heated according to the equation 2NH4NO3(s) 2 N2(g) + 4H2O(g) + O2(9) Part A How ma...
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