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Concept explainers
(a)
Interpretation: When magnesium of mass 0.121 g is dissolved in 50.0 mL of 1.00 M HCl, some amount of
Concept Introduction:Limiting reagentis the reactant that limits the amount of product produced in a
(b)
Interpretation: The volume of HCl in mL needs to be calculated at given temperature and pressure.
Concept Introduction:From theideal
Here, n is number of moles, R is Universal gas constant, T is temperature and P is pressure of the gas.
(c)
Interpretation: The joules of energy released by the magnesium needs to be determined.
Concept Introduction:Heat produced can be calculated as follows:
Where m is the mass, s is the specific heat capacity, delta T is the change in temperature.
The mass of the substance is related to number of moles and molar mass as follows:
(d)
Interpretation: The heat of reaction for magnesium needs to be calculated in joules/gram and in kilojoules/mol.
Concept Introduction:Heat released in J/g =
Heat released in kJ/mol =
1kJ = 1000J
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Chapter 16 Solutions
EBK BASIC CHEMISTRY
- (10.2) Calculate the fluoride ion concentration and pH of a solution that is 0.20 M in HF and 0.10 M in HCl. Ka 6.8 × 10¬4arrow_forwardDetermine the lime and soda ash does, in mg/L as CaO and Na2CO3, to soften the Thames River to a final hardness of less than 125 mg/L as CaCO3. Assume that all the alkalinity is bicarbonate and that the lime is 90% pure and the soda ash is 97% pure. (4.21)arrow_forward9.118 A solution is prepared by dissolving 22.0 g of NaOH in 118.0 g of water. The NaOH solution has a density of 1.15 g/mL. (9.4) a. What is the mass percent (m/m) of the NaOH solution? b. What is the total volume, in milliliters, of the solution? c. What is the mass/volume percent (m/v) of the solution? d. What is the molarity (M) of the solution?arrow_forward
- This is possible because of the following reactions that take place rapidly as long as reactants are available: (11.3) Equation : 51-(aq) + IO-3(aq) + 6H+(aq) ----> 3I2(aq) +3H2O(I)arrow_forwardBarium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the following solutions will be saturated or unsaturated at 25°C: (9.3) a) adding 32 g of Ba(OH)2 to 990 g of H2O b) adding 7.0 g of Ba(OH)2 to 125 g of H2O c) adding 22 g of Ba(OH)2 to 350. g of H2Oarrow_forward8) What is the pH of a solution containing 0.280 M weak base, B', with a K, of 3.9 X 107? (10.51) в (ад) + H-0 (1) ВН (аq) + ОН (ад)arrow_forward
- (5.7: Similar to For practice 5.11)The titration of a 20.0 mL sample of an H₂SO4 solution of unknown concentration requires 18.88 mL of a 0.203 M KOH to reach the equivalence point. What is the concentration (in M) of the unknown H₂SO4 solution? (Hint: Write the balanced reaction equation first.) O 0.0958 M O 0.383 M O 0.767 M O 0.192 Marrow_forward(14.6) Which of the following aqueous solution has the highest boiling point? O 1.00 M NaCl O 1.00 M Ca(NO3)2 O 1.00 M C6H1206 O 1.00 M NaNO3arrow_forwardH₂O₂ + KMnO4 + H₂SO4 O₂ + MnSO4 + K₂SO4+H₂O 1. How many moles of the oxidized product is formed in the reaction? (2,1,3,4) 2. How many electrons does the reducing agent loss?(5,3,7,1)arrow_forward
- What is the pH of a 0.25 M solution of a strong acid? (0.6)arrow_forward5.14 What is the molar concentration of chloride ion in a solution prepared by dissolving 22.0 g of calcium chloride (FW= 111.1 g/mol) to 4.0L with water?arrow_forwardComplete the following equations by writing the formula(s) of the product(s) and balancing the equation with coefficients. Use the type of reaction to aid in determining the products. 6. 7. 8. 9. Balanced Equation 10. Zn + FeCl3 + 12. C3H8 + HgO→ 13. Al + H₂SO4 → AgNO3 → 0₂ Cl₂ → Balanced Equation 11. Iron and oxygen react to form iron (III) oxide. afe +302 afe 203 Type of Reaction Single Replacement Write the balanced chemical equation for the following chemical reactions. Include the correct formulas for all reactants and products and balance with coefficients. Identify the type of reaction in the right column. Double Replacement Combustions Decomposition Combination Silver nitrate and magnesium chloride react to form magnesium nitrate and silver chloride. 2Aguo3 + MgCl₂ → 2 Agcl + ing [Nosta double displacement Type of Reaction Compustion Aluminum reacts with copper (II) sulfate to form aluminum sulfate and copper solid. 3 cu 50₂ +2A1-3 Cu +3504 +2A¹a (564)3 single displacment 10arrow_forward
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