scholar78 scholar78

19-10-2022
Chemistry

Answered

A 1.90 g vitamin B3 tablet is found to contain
0.0122 mol of niacinamide, a form of vitamin
B3 with the formula C6H6N₂O. (The molar
mass of C6H6N₂O is 122.13 g/mol.)
What is the mass percent of C6H₁N₂O in
the tablet?

A 190 g vitamin B3 tablet is found to contain 00122 mol of niacinamide a form of vitamin B3 with the formula C6H6NO The molar mass of C6H6NO is 12213 gmol What class=

Answer :

Other Questions

The molar mass of a gas at STP is 74.4 g/mol. What is its density in g/L?

The plot below was obtained for the reaction N2O5(g) → NO2(g) + NO3(g). The activation energy, Ea, for this reaction is ________ Slope =-1.64 x 104 K choices:

7.0 mol AgNO3 can form 3.5 mol Zn(NO3)2 and 3.0 mol Zn can form 3.0 mol Zn(NO3)2. How many moles of Zn(NO3)2 can form during the reaction?

a gas mixture at 20.0 C and 2.0 atm contains 0.40 mol of H2, 0.15 mol of O2, and 0.50 mol of N2. Assuming ideal behavior, what is the partial pressure of hydrog

A quantity of 3.30 × 102 mL of 0.500 M HNO3 is mixed with 3.30 × 102 mL of 0.250 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The i

Given the following solubility vs. temperature data for two compounds, answer the questions below Compound A temperature degrees C 25.0 26.7 30.8 41.7 48.0 63.0

Problem A symmetrical unknown compound A, CH₁6, reacts with H₂ on a 1% Pt/C catalyst 16 to form B (C8H18). Treatment of A with 03 followed by Zn/HOAc affords bu

Fill in the blanks Telophase The last stage of mitosis The chromosomes have ________ the poles. Two new __________________ form around each of the two separat

Fill in the blanks Interphase Mitosis is now over __________ is unwound. Here the cell _________________its chromosomes in preparation for another round of cell

Provide explanations for the following: 1. Why does 5060 have three significant figures? 2. Why 5.67 + 0.00032 = 5.67 (and not 5.7 or 5.67032 or any other numbe