1 Answers
Call
The equation below represents an equilibrium reaction HNO3(aq) + NH3(aq) ↔ NO3- (aq) + NH4+(aq). Which chemical in the forward reaction is a Bronsted-Lowry acid? * A. HNO3 B. NH3 C. NO3- D. NH4+
A. HNO3
1 Answers 1 views
X cm³ of 0.15 mol dm³ zinc nitrate solution Zn(NO3)2 is pipetted into a 500 cm³ volumetric flask to produce 500 cm³ of 0.018 mol dm³ zinc nitrate solution. Zn(NO3)2. Determine the value of X.
Molar mass of Zinc nitrate = 189.36 189.36 × 0.018 =3.41×10 = 34.1= 500× 0.15/34.1= 2.2cm3
1 Answers 1 views
Assuming an efficiency of 40.30%, calculate the actual yield of magnesium nitrate formed from 135.8 g of magnesium and excess copper(II) nitrate Mg + Cu(NO3)2 = Cu + Mg(NO3)2
Actual Yield =216.43g
1 Answers 1 views
please help me balance these equations
1. Zn(s) + NO3−(aq) = Zn2+(aq) + NH3(aq)
2. CuS(s) + NO3−(aq) = Cu2+(aq) + S(s) + NO(g)
1. 4Zn(s) + NO3-(aq) + 6H+(aq) -> 4Zn2+(aq) + NH3 + 3OH-(aq)2.3Cu(s) + 2NO3-(aq) + 8H+ (aq)-> 3Cu2+(aq)+2NO + 3S + 4H2O
1 Answers 1 views
A solution contains 12.6 ppm of dissolved Ca(NO3)2. Calculate the concentration of NO3 in moles per litre. (4)
Solution:Each mol of Ca(NO3)2 (MM 164.088) contains 2 mol NO3- (MM 62.005),so the fraction of mass that is nitrate (NO3-) is:(2 mol NO3- / 1 mol Ca(NO3)2) × (62.005 g...
1 Answers 1 views
write the corresponding half reaction for (a) Ca(s) + Cu(NO3)2(aq) → Cu(s) + Ca(NO3)2(aq) (b) Zn(s) + Ni<sup>2+</sup> → Ni(s) + Zn<sup>2+</sup>
Solution:(a) Ca(s) + Cu(NO3)2(aq) → Cu(s) + Ca(NO3)2(aq)_______________________________________________Ca(s) − 2e- → Ca2+(aq) (oxidation half-reaction)Cu2+(aq) + 2e- → Cu(s) (reduction half-reaction)----------------------------------------------------------------------------Ca(s) + Cu2+(aq) → Ca2+(aq) + Cu(s)(b) Zn(s) + Ni2+ → Ni(s) +...
1 Answers 1 views
(a) How many ppm of Ca(NO3)2 are in 0.144mMCa(NO3)2?
Solution:0.144 mM Ca(NO3)2 = 0.144 mmol Ca(NO3)2 / LThe molar mass of Ca(NO3)2 is 164.088 g/molBecause 1 mol of Ca(NO3)2 is 164.088 g, by extension, 1 mmol = 164.088 mg1...
1 Answers 1 views
Need the ionic equation and net ionic equations
1. AgNO3(aq) +KCl(aq) ----> KNO3 + AgCl
2. CuCl2(aq) + Ba(NO3)2(aq) -----> Cu(NO3)2 + BaCl2
Thank you so much for helping me!
1. AgNO3(aq) +KCl(aq) ----> KNO3(aq) + AgCl (s) Ag+ + NO3- +K+ + Cl- ----> K+ + NO3- + AgCl(s) Ag+ + Cl- ----> AgCl(s) 2. CuCl2(aq) + Ba(NO3)2(aq) ----->...
1 Answers 1 views
Create a Daniell cell given the following cell notation: Pb/Pb(NO3)2//Ca/Ca(NO3)2
It is necessary to take 2 tanks, connect them with salt bridges from KCl. In the first you need to pour a solution of lead nitrate and lower the lead...
1 Answers 1 views
How many grams of solid BaSO4 will form when Na2SO4 reacts with 25mL of 0.50 M Ba(NO3)2?
_Ba(NO3)2 + _Na2SO4 ---> _ BaSO4 + _ NaNO3
Show all calculations
Answer: 1) Balance the reaction equation Ba(NO3)2 + Na2SO4 ---> BaSO4 + 2 NaNO3 2) Calculate number of moles of Ba(NO3)2 = 0.50 moles/L x 0.025 L = 0.0125 moles 3) Using stoichiometry...
1 Answers 1 views