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answer with two sig figs scientific notation
QB 15.10 Level 1 Homework. Unanswered In an aqueous...
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...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH of a 0.067 M solution of acetic acid, whose K_a=1.8 10^{-5}? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g 2.5E5 for 2.5 x 10") Numeric Answer Unanswered - Submit
What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq)...
What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq) solution having a pH of 2.00 with 10.0 mL of an HCl(aq) solution having a pH of 6.00? Numeric Answer: Unanswered • 2 attempts left Submit Calculate the pOH of a 7.0E0 M NACH3CO2 (aq) solution. The Ke of acetic acid is 1.8x10-5. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g....
QB 2.51 Level 2 Homework • Unanswered What is the mass of 375 calcium phosphate formula...
QB 2.51 Level 2 Homework • Unanswered What is the mass of 375 calcium phosphate formula units, Ca3(PO4)2, in grams? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before Numeric Answer: Unanswered
Trinitrotoluene (TNT), the explosive used in dynamite, decomposes according to this reaction. 2C7H5N306(s)—700(g) + 7 C(s)...
Trinitrotoluene (TNT), the explosive used in dynamite, decomposes according to this reaction. 2C7H5N306(s)—700(g) + 7 C(s) + 5 H2O(g) +3 N2(g) In mining operations dynamite is sometimes used to remove excess rock. For this procedure the dynamite is placed in a drill hole having a volume of about 1.5 L. Calculate the total gas pressure produced when 1.00 lb of TNT is detonated? under these conditions. TNT detonation temperature is 3500 K. Respond with the correct number of significant figures...
Calculate [HO] for a solution of pH 4.3. Use "E" for scientific notation. Respond with the...
Calculate [HO] for a solution of pH 4.3. Use "E" for scientific notation. Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5e5 for 25x1 Type your response
Homework - Answered Fill in the Blanks Based on the best Lewis structures you chose in...
Homework - Answered Fill in the Blanks Based on the best Lewis structures you chose in question 2, the SCl2 molecule has O molecular geometry with bond angles of degrees. Hint T13HW Question 11 Homework. Unanswered How many moles of Nare there in 0.251 g of N2O? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 10") Numeric Answer: 0.00570 Unanswered Submit
HQ3.01 Homework - Unanswered How many moles of oxygen atoms are in 9.2E-1 moles of CO2?...
HQ3.01 Homework - Unanswered How many moles of oxygen atoms are in 9.2E-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 Enotation and only 1 digit before decimale.g.2.585 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...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two decimal places in atomic masses. Only give the numeric value of your answer. Don't include the units. i 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) In a 1.018E+2 g sample of iron(111) oxide, how many grams of iron are present? Your answer should have the...
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...
Xtv /assigned/ Due Mar 22:15.5 Homework 6/16 answered Q15.26 Homework – Unanswered What is the pH of a 0.067 M solution of acetic acid, whose K_a=1.8 10^{-5}? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g 2.5E5 for 2.5 x 10") Numeric Answer Unanswered - Submit
What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq) solution having a pH of 2.00 with 10.0 mL of an HCl(aq) solution having a pH of 6.00? Numeric Answer: Unanswered • 2 attempts left Submit Calculate the pOH of a 7.0E0 M NACH3CO2 (aq) solution. The Ke of acetic acid is 1.8x10-5. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g....
QB 2.51 Level 2 Homework • Unanswered What is the mass of 375 calcium phosphate formula units, Ca3(PO4)2, in grams? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before Numeric Answer: Unanswered
Trinitrotoluene (TNT), the explosive used in dynamite, decomposes according to this reaction. 2C7H5N306(s)—700(g) + 7 C(s) + 5 H2O(g) +3 N2(g) In mining operations dynamite is sometimes used to remove excess rock. For this procedure the dynamite is placed in a drill hole having a volume of about 1.5 L. Calculate the total gas pressure produced when 1.00 lb of TNT is detonated? under these conditions. TNT detonation temperature is 3500 K. Respond with the correct number of significant figures...
Calculate [HO] for a solution of pH 4.3. Use "E" for scientific notation. Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5e5 for 25x1 Type your response
Homework - Answered Fill in the Blanks Based on the best Lewis structures you chose in question 2, the SCl2 molecule has O molecular geometry with bond angles of degrees. Hint T13HW Question 11 Homework. Unanswered How many moles of Nare there in 0.251 g of N2O? Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 10") Numeric Answer: 0.00570 Unanswered Submit
HQ3.01 Homework - Unanswered How many moles of oxygen atoms are in 9.2E-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 Enotation and only 1 digit before decimale.g.2.585 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...
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two decimal places in atomic masses. Only give the numeric value of your answer. Don't include the units. i 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) In a 1.018E+2 g sample of iron(111) oxide, how many grams of iron are present? Your answer should have the...
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