Question

Consider the reaction: 2 NaBH4(aq) + H2SO4(aq) → 2 H2(g) + Na2SO4(aq) + B2H6(g) What volume,...

Consider the reaction: 2 NaBH4(aq) + H2SO4(aq) → 2 H2(g) + Na2SO4(aq) + B2H6(g) What volume, in mL, of a 0.526 M solution of NaBH4 is required to produce 0.574 g of B2H6? H2SO4 is present in excess.

Homework Answers

Answer #1

no of moles of B2H6   = W/G.M.Wt

                                   = 0.574/27.66   = 0.02075moles

2 NaBH4(aq) + H2SO4(aq) → 2 H2(g) + Na2SO4(aq) + B2H6(g)

1 mole of B2H6 produced from 2 moles of NaBH4

0.02075 moles of produced from = 2*0.02075/1   = 0.0415 moles of NaBH4

no of moles of NaBH4 = molarity *volume in L

0.0415                          =0.526*volume in L

volume in L                  = 0.0415/0.526   = 0.0789L

volume of solution = 78.9ml >>>>answer

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Al(s) + H2SO4(aq) --> Al2(SO4)3(aq) + H2(g) Consider the unbalanced equation above. What volume of 0.465...
Al(s) + H2SO4(aq) --> Al2(SO4)3(aq) + H2(g) Consider the unbalanced equation above. What volume of 0.465 M H2SO4 is needed to react with excess aluminum to produce 3.94 g of Al2(SO4)3? Use a molar mass with at least as many significant figures as the data given.
Sodium carbonate nuetralizes H2SO4 as shown below in the reaction: Na2CO3 (s) + H2SO4 (aq) -->Na2SO4...
Sodium carbonate nuetralizes H2SO4 as shown below in the reaction: Na2CO3 (s) + H2SO4 (aq) -->Na2SO4 (aq) + H2O (l) +CO2 (g) How many grams of sodium carbonate are required to nuetralize 455ml of 5.4% ( W/V) solution of H2SO4?
How much volume in mL of H2 gas is formed from the reaction of 5 g...
How much volume in mL of H2 gas is formed from the reaction of 5 g of Zn(s) and 10 mL of 0.1 M of H2SO4 solution at Standard Temperature and Pressure (STP) conditions? Assume ideal gas. Zn(s) + H2SO4(aq) => ZnSO4(aq) + H2(g) Atomic weights: Zn = 65.39 H = 1.0079 S = 32.065 O = 15.999
What is the mininium amount of 6.0 M H2SO4 necessary to produce 25.0 g of H2...
What is the mininium amount of 6.0 M H2SO4 necessary to produce 25.0 g of H2 (g) according to the reaction between aluminum and sulfuric acid? 2 Al(s) + 3 H2SO4(aq) ----> AL2(SO4)3(aq) + 3 H2(g) I know the answer is 2.1L. I don't understand how they got that answer.
CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(g) a) How many moles of CaBr2 would be consumed...
CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(g) a) How many moles of CaBr2 would be consumed when reacted with 53.0 mL of a 2.00 M H2SO4 solution? b) If you consume added 15.00 mL of Calcium Bromide, and produce 0.023 moles of HBr, what was the original concentration of the calcium bromide? c) If 10.32 g of HB are generated, what volume of 0.100 M H2SO4 is needed to produce this much HBr? d) A 532 mL solution of 0.133...
The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown. H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq)...
The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown. H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq) What volume of 0.230 M KOH is needed to react completely with 13.6 mL of 0.160 M H2SO4 ? volume: ? mL
Mg(s) + HCl (aq) ---> MgCl2(aq) + H2(g) Consider the above unbalanced equation. What volume of...
Mg(s) + HCl (aq) ---> MgCl2(aq) + H2(g) Consider the above unbalanced equation. What volume of H2 is produced at 340 mm Hg and 73.4°C when 0.86 g of Mg reacts with excess HCl? Use molar masses with at least as many significant figures as the data given
What is the minimum amount of 5.3 M H2SO4 necessary to produce 22.0 g of H2...
What is the minimum amount of 5.3 M H2SO4 necessary to produce 22.0 g of H2 (g) according to the following reaction? 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g) Express your answer using two significant figures.
The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown. H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq)...
The balanced equation for the neutralization reaction of aqueous H2SO4 with aqueous KOH is shown. H2SO4(aq)+2KOH(aq)⟶2H2O(l)+K2SO4(aq) What volume of 0.220 M KOH is needed to react completely with 13.0 mL of 0.230 M H2SO4 ?
Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: ZnO(s) + H2O(l)...
Consider this reaction, which occurs in the atmosphere and contributes to photochemical smog: ZnO(s) + H2O(l) →Zn(OH)2(aq) If there is 16.9 g ZnO and excess H2O present, the reaction yields 18.5 g Zn(OH)2. Calculate the percent yield for the reaction. Metallic zinc reacts with aqueous HCl. Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g) What volume of 2.60 M HCl, in milliliters, is required to convert 12.6 g of Zn completely to products? mL HCl