15.5 mL of 0.33 mol/L calcium acetate reacts with 20.5mL of 0.45 mol/L silver chlorate. Determine the concentration of the acetate ion in the final solution.
Ca(CH3COO)2(aq) + 2 AgClO3(aq) --> 2 AgCH3COO(s) + Ca(ClO3)2(aq)
A) 0.014 mol/L
B) 0.028 mol/L
C) 0.0 mol/L
D) 0.37 mol/L
Which is the right answer?
in a BaI2 solution if the concentration of I- = 0.386 M then what is the concentration of BaI2
consider the following reaction :2Al + Cr2O3 = Al2O3 +2cr. what is the mass of Al2O3 that will be produced upon complete reaction of 1.20* 10^21 atoms of Al
how many moles of iron (III) is produced by 0.030 moles of iron in the following reaction 4fe + 3o2- 2fe2o3
The decomposition of KClO
3
is commonly used to prepare small amounts of O
2
in the
laboratory:
2 KClO
3
s → 2 KCl s + 3 O
2
g
How many grams of O
2
can be prepared from 4.50 g of KClO
3
?
The molar absorptivity of compound A is 3070 at 520 mm and 2160 at 600 nm, and the molar absorptivity of compound B is 220 at 520 and 1470 at 600 mm. Analyze an unknown solution containing compounds A and B using a spectrometer in an absorption cell 1.00 cm thick. If the percentage of transmittance of the unknown solution is 54.4% at 520 nm and 35.0% at 600 nm, what is the molar concentration of both. and B in the unknown?
A 4.0520g sample of HCl, specific
Gravity 11.18, required 44.15ml of 0.9035M of Sodium Hydroxide in titration, compute for percent purity.
The mass (in grams) of copper produced is 2.46 g .
*The limiting reagent is Iron (steel wool)
1)Calculate the theoretical yield (in grams) of Copper?
a) 3.99
b) 1.28
c) 2.28
d) 1.98
2)What is the actual yield of Copper?
a) 2.78
b) 3.99
c) 2.58
d) 2.46
3)Determine the percent yield.
a) 61%
b) 67%
c) 88%
d) 108%
4) What type of reaction occurred
Five and one-half tons of compost containing 2.1 % N, 1.15 % P2O5, and 0.97% K2O can supply how many kilograms of N, P2O5 and K2O?