Homework Answers
2)
Balanced chemical equation is:
2 NaOH + H2SO4 ---> Na2SO4 + 2 H2O
Here:
M(NaOH)=0.005 M
V(NaOH)=37.0 mL
V(H2SO4)=20.0 mL
According to balanced reaction:
1*number of mol of NaOH =2*number of mol of H2SO4
1*M(NaOH)*V(NaOH) =2*M(H2SO4)*V(H2SO4)
1*0.005*37.0 = 2*M(H2SO4)*20.0
M(H2SO4) = 0.0046 M
Answer: 0.0046 M
Only 1 question at a time please
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A beaker contains a 25 mL solution of an unknown monoprotic acid that reacts in a...
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titrated this solution of 0.21 M NaOH
moles of weak acid = 3.75*10^-3
moles of NaOH = moles of week acid
c) How many milliliters of the NaOH are required to neutralize the sample of weak acid? d) How many moles of NaOH have been added at one half of the volume in part...
3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M NaOH. a) What is the equivalence point volume and 2 equivalence point volume for this titration? Find the pH b) before the titration begins; c) after 20.00 mL of the NAOH has been added, d) after 62.50 mL of the NaOH has been added; and e) after 85.00 mL of the NAOH has been added. 4)...
Titration of a Weak Monoprotic Acid with a Strong Base Volume of Base (mL) 1. Using the graph, determine the K, of the weak acid. 2. Suppose 100mL of the monoprotic acid referred to in the graph was titrated with 1M NaOH, determine the molarity of the weak acid. The corresponding balanced chemical equation is shown below. HA + NaOH + H2O + A + Nat 3. If the weak acid above was prepared by using 5g of the weak...
Acid-base titration questions. Please help! Thanks.
2. Given that 20.00 mL of phosphoric acid solution required 15.50 mL of 0.200M NaOH for the first equivalent point. What is the molarity of the phosphoric acid? 3. A student titrated 25.00 mL of cola and it required 18.27 mL of 0.0100 M NaOH to reach the 1'equivalence point. Calculate the molar concentration of phosphoric acid in this brand of cola. 4. If the density of the "Cola" drink is 1.00 g/mL. What...
2. A 25.00 mL sample of acetic acid (CH3COOH) is titrated to the equivalence using 31.08 mL of 0.1978 M NaOH. What is the balanced neutralization chemical reaction? What is the molarity of the acetic acid in the original sample?
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