The mass percent of protein needs to be determined, if 1.25 g sample of meat is heated with sulfuric acid to produce (NH 4 ) 2 SO 4 . It gets neutralized by 50 mL dilute H 2 SO 4 and it requires 32.24 mL 0.4498 M NaOH for titration for which separate 25 mL sample dilute H 2 SO 4 (aq) is needed for 22.24 mL of 0.4496 M NaOH. Concept introduction: Mass percent of a substance present in the sample can be determined by dividing mass of substance present in it to overall mass of sample. After that, multiply the overall result with 100 to get the percentage. Such as mass percent of x g of a substance present in the y g sample can be determined as follows: M % = ( x y ) × 100
The mass percent of protein needs to be determined, if 1.25 g sample of meat is heated with sulfuric acid to produce (NH 4 ) 2 SO 4 . It gets neutralized by 50 mL dilute H 2 SO 4 and it requires 32.24 mL 0.4498 M NaOH for titration for which separate 25 mL sample dilute H 2 SO 4 (aq) is needed for 22.24 mL of 0.4496 M NaOH. Concept introduction: Mass percent of a substance present in the sample can be determined by dividing mass of substance present in it to overall mass of sample. After that, multiply the overall result with 100 to get the percentage. Such as mass percent of x g of a substance present in the y g sample can be determined as follows: M % = ( x y ) × 100
Solution Summary: The author explains that the mass percent of protein found in meat is 39.36 %. Neutralization of a reaction between NaOH and H 2 SO 4 can be shown as follows:
The mass percent of protein needs to be determined, if 1.25 g sample of meat is heated with sulfuric acid to produce (NH4)2SO4. It gets neutralized by 50 mL dilute H2SO4 and it requires 32.24 mL 0.4498 M NaOH for titration for which separate 25 mL sample dilute H2SO4 (aq) is needed for 22.24 mL of 0.4496 M NaOH.
Concept introduction:
Mass percent of a substance present in the sample can be determined by dividing mass of substance present in it to overall mass of sample. After that, multiply the overall result with 100 to get the percentage.
Such as mass percent of x g of a substance present in the y g sample can be determined as follows:
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