Chemistry, 30.01.2021 05:10 mralxrdk12
How many moles of helium gas are present in 120 liters at STP
a. 10.5 moles
b. 5.00 moles
c. 6.5 moles
d. 5.4 moles
Answers: 2
Chemistry, 21.06.2019 19:00
0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?
Answers: 1
Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1
Answers: 1
Chemistry, 22.06.2019 08:30
In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?
Answers: 2
How many moles of helium gas are present in 120 liters at STP
a. 10.5 moles
b. 5.00 mo...
b. 5.00 mo...
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