Seudónimo Seudónimo

01-06-2015
Chemistry

contestada

What is the gram-formula mass of (NH4)3PO4?(1) 112g/mol (2) 121g/mol (3) 149g/mol (4) 242g/mol

Respuesta :

lulu1991 lulu1991

01-06-2015

The gram-formula mass means that the mass of one mole molecule. Then you just need to calculate the elements together. So the gram-formula mass of (NH4)3PO4 is equals to (14+4)*3+31+16*4= 149g/mol. So the answer is (3).

Answer Link

Otras preguntas

A reference point is the object to which we compare another objects motion. true or false?

The chemical combination of two or more elements in fixed amounts is called a(n) A. orbit B. mixture C. molecule D. compound

Find the length of the hypotenuse of a right triangle with legs of 8 and 15. A) 17 B) 19 C) 21 D) 23

what's the ordered pair that is a solution to the system of equations. y = 2x - 7 x + 2y = 11 ?

ANSWER FOR BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What factors (2) led to the temporary decline of the Ku Klux Klan?

What argument is Franklin d. Roosevelt making in this excerpt from his "Four Freedoms" speech?

what are the coordinates of the fourth vertex of the rectangle

What does Lincoln metaphor “a house divided against itself cannot stand”mean

Whats Dr. Martin Luther king death date