What mass of HIO3, iodic acid, is produced when 59.1 grams of iodine reacts with nitric acid, HNO3? (molar masses: HNO3 = 63.0: I2 = 253.8; HIO3 = 175.9; NO2 = 46.0; H2O = 18.0) 10 HNO3    +     I2     -->     2 HIO3     +    10 NO2    +    4 H2O​

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2b2t

explanation:

2b2t

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a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o