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

Please help me with this

(3x(3)+9X(2)+27X)/3X

Consider f and c below. f(x, y) = x2 i + y2 j c is the arc of the parabola y = 2x^2 from (−1, 2) to (0, 0) (a) find a function f such that f = ∇f. f(x, y) = (

A random sample of 25 boxes of cereal have a mean of 372.5grams and a standard deviation of 15 grams. Does an average box of cereal contain more than 368 grams

The Appalachian Trail is about 2,175 miles long. a. If Katia averages 18 miles each day, how long will it take her to hike the length of the trail? b. Katia’s

Flunking science need answers

Tell which value of the variable is the solution of the equation. s−4.3=0; s=4.3, 4.4, 4.5, 4.6 Question content area bottom Part 1 Which of the following i

Distance between Bholu's and Golu's house is 9 km. Bholu has to attend Golu's birthday party at 7 O'clock. He started his journey from his home at 6 O'clock on

practical examples of radition

1. Explain 'Computer Ethics" ?plz following me