NHe Each element has dilferent numbers of atoms on the two sides of the reacion

Question

NHe Each element has dilferent numbers of atoms on the two sides of the reacion arrow Since there are two N atoms on the left side and one N of 2 in front of HH,0 on the right side of the reaction will balance for H. The balanced equation for N and Hi Now the total number of O atoms on the right side of the reaction is six (4 0 atoms from 2NO2+20 atoms from 21H,0) Since there N, H0) Part B How many moles of axygen are needed to react with 155 g of hydrazine? Express your answer to three significant figures and include the appropriate units. Value Units ncorrect: Try Again; 4 attempts remaining; no points deducted Part C This question will be shown

Explanation / Answer

N2H4 (aq)+ O2 (g) ----> N2 (g) + 2H2O (l)

molar mass of N2H24 = 32 g/mol

155 g / 32 g/mol => 4.84 moles of N2H4

1 eq of N2H4 requires 1 eq of O2

so 4.84 mol of N2H4 would require 4.84 mol of O2

Answer = 4.84 mol

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