Stoichiometry, inxs



Download 20.5 Kb.
Sana04.04.2017
Hajmi20.5 Kb.

Stoichiometry, INXS



Some important points to consider when dealing with stoichiometric calcualtions:


  1. Reactions are spontaneous. That is, when two chemicals are mixed, then they will actually react.




  1. The reaction is fast.




  1. The reaction goes to completion.




  1. The reaction is stoichiometric. The reactants and products react, in a simple whole number relationship.


Stoichiometry with a reactant in Excess Quantity.
Example:

5.0 g of oxygen and hydrogen are mixed. A spark caused an exothermic reaction to produce water. Determine how much water was produced in this reaction.



Example:

a) What mass of CS2 is produced when 17.0 g of C are reacted with 39.5 g of SO2?



5C + 2 SO2 ---- CS2 + 4 CO

b) What mass of the excess reactant will be left over?



Example:

A double replacement reaction takes place when 0.50 L of 0.20 M of sodium chloride is mixed with 0.50 L of 0.50 M Lead II nitrate. Which reactant is in excess? Calculate the moles of lead II chloride produced from this reaction.

Download 20.5 Kb.

Do'stlaringiz bilan baham:




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©hozir.org 2020
ma'muriyatiga murojaat qiling

    Bosh sahifa
davlat universiteti
ta’lim vazirligi
O’zbekiston respublikasi
maxsus ta’lim
zbekiston respublikasi
o’rta maxsus
davlat pedagogika
axborot texnologiyalari
nomidagi toshkent
pedagogika instituti
texnologiyalari universiteti
navoiy nomidagi
samarqand davlat
guruh talabasi
ta’limi vazirligi
nomidagi samarqand
toshkent axborot
toshkent davlat
haqida tushuncha
Darsning maqsadi
xorazmiy nomidagi
Toshkent davlat
vazirligi toshkent
tashkil etish
Alisher navoiy
Ўзбекистон республикаси
rivojlantirish vazirligi
matematika fakulteti
pedagogika universiteti
таълим вазирлиги
sinflar uchun
Nizomiy nomidagi
tibbiyot akademiyasi
maxsus ta'lim
ta'lim vazirligi
махсус таълим
bilan ishlash
o’rta ta’lim
fanlar fakulteti
Referat mavzu
Navoiy davlat
umumiy o’rta
haqida umumiy
Buxoro davlat
fanining predmeti
fizika matematika
universiteti fizika
malakasini oshirish
kommunikatsiyalarini rivojlantirish
davlat sharqshunoslik
jizzax davlat