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i need hel pwith these three questions !
What is the molarity of NaCl when 3.46...
Calculate pH during acid base titration Question When titrating a strong acid with a strong base,...
Calculate pH during acid base titration Question When titrating a strong acid with a strong base, after the equivalence point is reached, the pH will be determined exclusively by: Select the correct answer below: O hydronium concentration O hydroxide concentration O conjugate base concentration O conjugate acid concentration FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
need hel owith these two asap! 60 Nd Pr 63 64 65 67 Ce 68 La...
need hel owith these two asap!
60 Nd Pr 63 64 65 67 Ce 68 La Pm Sm Eu Gd Tb Dy Ho E 138 901 140 116 Cemm 491 1442 354964 furepin 1s2 300 sa ses 44 98 samadae 89 94 95 97 98 100 Fr Es Ac Th Pa U Np Pu Am Cm Bk 227028 Actinium 232 03 Thorium 232648 244064 Pudes 247 7 240043 2470 Pet Landane. Protaceniu Cuum What volume of a 1.05 Msolution of...
Precipitation Question What is Ksp for the following equilibrium if Ca,(PO4), has a molar solubility of...
Precipitation Question What is Ksp for the following equilibrium if Ca,(PO4), has a molar solubility of 0.00050 M? Ca; (PO2)2($) = 3 Ca? + (aq) + 2 PO (aq) Select the correct answer below: O 1.1 x 10-20 O 5.7 x 10-17 O 3.4 10-15 O 8.9 x 10-2 FEEDBACK MORE INSTRUCTION Content attribution
Precipitation Question What is the Kip for the following equilibrium if zinc hydroxide has a molar...
Precipitation Question What is the Kip for the following equilibrium if zinc hydroxide has a molar solubility of 1.44 x 10-6 M? Zn(OH),(s) = Zn²+ (aq) + 2 OH" (aq) Select the correct answer below: O 6.65 x 10-15 O 1.19 x 10-17 O 3.88 x 10-19 O 9.95 x 10-21 FEEDBACK MORE INSTRUCTION Content attribution
What is the percent yield of water if we start with 5 g C, Hg and...
What is the percent yield of water if we start with 5 g C, Hg and produce 6.13 g H,O? The end point in a titration of a 58 mL sample of aqueous HCl was reached by the addition of 25 mL of 0.83 M NaOH titrant. The reaction proceeds by the following equation. C3H8 +502 — 3CO2 + 4H20 Select the correct answer below: HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 0 63.905 What is the molar concentration of...
Please explain the correct answer to all three questions. Thank you! Incorrect Question 11 0/1 pts...
Please explain the correct
answer to all three questions. Thank you!
Incorrect Question 11 0/1 pts A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration curve below was obtained. Which of the following indicators would be best for this titration? 12.01 10.0 8.0 pH of solution in flask 6.01 Equivalence Point Indicator methyl orange methyl red bromocresol purple bromthymol blue thymol blue phenolpthalein pka 3.46 5.00 6.12 7.10...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the so...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
can i get help answering both these questions please i am stuck. Construct a 95% confidence...
can i get help answering both these questions please i am
stuck.
Construct a 95% confidence interval for Hy with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances Stats X = 68 mg, s, = 3.72 mg, n = 14 x = 53 mg, s, -2.13 mg, n, 16 - + ng ni my Confidence interval when (*-*)-4,...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of w...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of whole numbers? __Cas(PO4h + H2SO4 - Caso + HPO. A) 3 B) 8 C) 10 D) 11 2) What is the coefficient of H20 when the following equation is properly balanced with smallest set of whole numbers? ALC + H2O - AM(OH), + CHE A) 3 B) 4 C) 6 D) 12 E) 24 3) of the reactions below, which one is...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Calculate pH during acid base titration Question When titrating a strong acid with a strong base, after the equivalence point is reached, the pH will be determined exclusively by: Select the correct answer below: O hydronium concentration O hydroxide concentration O conjugate base concentration O conjugate acid concentration FEEDBACK MORE INSTRUCTION SUBMIT Content attribution
need hel owith these two asap!
60 Nd Pr 63 64 65 67 Ce 68 La Pm Sm Eu Gd Tb Dy Ho E 138 901 140 116 Cemm 491 1442 354964 furepin 1s2 300 sa ses 44 98 samadae 89 94 95 97 98 100 Fr Es Ac Th Pa U Np Pu Am Cm Bk 227028 Actinium 232 03 Thorium 232648 244064 Pudes 247 7 240043 2470 Pet Landane. Protaceniu Cuum What volume of a 1.05 Msolution of...
Precipitation Question What is Ksp for the following equilibrium if Ca,(PO4), has a molar solubility of 0.00050 M? Ca; (PO2)2($) = 3 Ca? + (aq) + 2 PO (aq) Select the correct answer below: O 1.1 x 10-20 O 5.7 x 10-17 O 3.4 10-15 O 8.9 x 10-2 FEEDBACK MORE INSTRUCTION Content attribution
Precipitation Question What is the Kip for the following equilibrium if zinc hydroxide has a molar solubility of 1.44 x 10-6 M? Zn(OH),(s) = Zn²+ (aq) + 2 OH" (aq) Select the correct answer below: O 6.65 x 10-15 O 1.19 x 10-17 O 3.88 x 10-19 O 9.95 x 10-21 FEEDBACK MORE INSTRUCTION Content attribution
What is the percent yield of water if we start with 5 g C, Hg and produce 6.13 g H,O? The end point in a titration of a 58 mL sample of aqueous HCl was reached by the addition of 25 mL of 0.83 M NaOH titrant. The reaction proceeds by the following equation. C3H8 +502 — 3CO2 + 4H20 Select the correct answer below: HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 0 63.905 What is the molar concentration of...
Please explain the correct
answer to all three questions. Thank you!
Incorrect Question 11 0/1 pts A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration curve below was obtained. Which of the following indicators would be best for this titration? 12.01 10.0 8.0 pH of solution in flask 6.01 Equivalence Point Indicator methyl orange methyl red bromocresol purple bromthymol blue thymol blue phenolpthalein pka 3.46 5.00 6.12 7.10...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
can i get help answering both these questions please i am
stuck.
Construct a 95% confidence interval for Hy with the sample statistics for mean cholesterol content of a hamburger from two fast food chains and confidence interval construction formula below. Assume the populations are approximately normal with unequal variances Stats X = 68 mg, s, = 3.72 mg, n = 14 x = 53 mg, s, -2.13 mg, n, 16 - + ng ni my Confidence interval when (*-*)-4,...
What is the coefficient of H.So, when the following equation is properly balanced with the smallest set of whole numbers? __Cas(PO4h + H2SO4 - Caso + HPO. A) 3 B) 8 C) 10 D) 11 2) What is the coefficient of H20 when the following equation is properly balanced with smallest set of whole numbers? ALC + H2O - AM(OH), + CHE A) 3 B) 4 C) 6 D) 12 E) 24 3) of the reactions below, which one is...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
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