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annabel
Questions (8)
if the yieeld for the following reaction is 85% how many grams of Al2S3 should be used to produce 165 g of Al(OH)3?
Al2S3+6H2O-->
1 answer
600 views
a mixture of 4.00 moles of hydrogen and
3.00 moles of oxygen is ignited, forming water. what is the maximum amount of water in
1 answer
878 views
A solution contains 1.50 g of dissolved Pb
2+ ions. How many grams of NaI must be added to the solution to completely precipitate
1 answer
1,014 views
A 1.8 mole sample of a compound weighs 195 g and is found to be 11.18% H and 88.82% C. What is
the molecular formula for the
1 answer
1,120 views
A sample of iron ore contains 1.02 x 10^24
Fe atoms and is found to be 69.94% Fe by mass. What is the mass of the sample?
1 answer
667 views
How many moles of O2 are needed for the complete combustion of 3 moles of CH4?
1 answer
1,889 views
How many atoms are there in a 15.0-g sample of KBr?
1 answer
632 views
How many atoms are there in a 15.0-g sample of KBr?
0 answers
405 views
Answers (2)
sorry convert your 53 grams to kg. because your specific heat capacity is in J per kg this should change your answer
q=m*c*change of t m=mass c= specific heat change of t= final temp- initial temp fill in these with your numbers and you should get the answer