8 CH3NH2 3 HCIO4 8 NO. 8 CO: 20H40 13 HCI MW: 31.06 00.5 46.01 44.0 18.02 36.46

Question

8 CH3NH2 3 HCIO4 8 NO. 8 CO: 20H40 13 HCI MW: 31.06 00.5 46.01 44.0 18.02 36.46 What mass of nitro dioxide can form reaction of 3.500 mole of a. 262 g b. 2.40 g Ig correct answer 99.1 c. d, 9.86 g 23. 8 CH3NH2 3 HCIO4 8NO2 +8CO2 20H10 13 HCI MW: 31.06 00.5 46.01 44.0 18.02 36.46 What mass of H20 will be formed by reaction of 3.50 g of CHJNHa with 15.0 gof HCIO2 a. 269 g correct answer b, 4.14 g c. 175 g d 5.08 g 24. Which one of the following formula name combinations is incorrect? a. Al (COJ)3 aluminum carbon trioxide correct answer b. Sno tin (II) oxide Fe(OH) ron (III) hydroxide d. LiAIH4 ithium aluminum hydride page 7 CHEM 1110 PRACTICE EXAM 3 25. What is the name of Niy(PO) a. Trinickel diphosphite correct answer b. Nickel(II) Phosphite c. Nickel III) Phosphite Nickel(II Phosphate 26. What is the name of this acid? HCIO:(aq)? a. Chloric acid b. Hydrochlorous acid c. Dioxygen hydrochloric acid d. Chlorous acid correct answer

Explanation / Answer

Ans 22 c 99.1 g

According to the reaction, 13 moles of perchloric acid produves 8 moles of nitrogen dioxide

So 3.5 moles of acid will produce (3.5 × 8) / 13 = 2.15 moles of NO2.

1 mole of NO2 weighs 46.01 g

So 2.15 moles will be 2.15× 46.01 = 99.1 grams

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