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We have to prepare 500 gr of a HCl solution 15% by mass:H2SO4 + NaCl at a Temperature of 100°C NAHSO4 is also produced The
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2. 562 views
The preparation of KClO3 follows these equations:2KMnO4 + 16HCl->2KCl + 2MnCl2 + 5Cl2 (g) + 8H2O 3Cl2 (g) + 6KOH ->KClO3 + 5KCl
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2. 785 views
Thanks for your help.I have a problem to solve et don't know how to do part of it. We have a solution of XNO3 (X = monovalent
1. 2 answers
2. 604 views
The combustion of 1.210 g of a mixture of CH4 and C2H6 gives 3.372 g of CO2I have to determine the composition of the mixture
1. 7 answers
2. 1,492 views
pepi's pizza has a choice of thin crust or thick crust. The available toppings are mushrooms, onions, pepperoni and sausage.
1. 2 answers
2. 850 views
Find the area of the partial circle, use 22/7 for pi.1.) radius = 27 cm find the area of 1/5 of the circle 2.) diameter = 29 ft
1. 2 answers
2. 668 views
Wow! Exclaimed Sammy. I have reached 47% of my goal! If her goal was 140 points, how many points does she have?
1. 1 answer
2. 321 views
How many grams of Na-benzoate (powder) do I need to prepare a buffer with pH = 4.2?How many grams of salt (NaCl) do I need to
1. 1 answer
2. 671 views
I need to calculate the amount of grams of Na-benzoate in a Na-benzoate buffer (water based) with a pH = 4.2 at 25'C?
1. 1 answer
2. 503 views
Equations for iodometric titration of carbon monoxide
1. 1 answer
2. 392 views