ydtbally7prettyp ydtbally7prettyp

23-05-2016
Chemistry

contestada

The temperature of a sample of water increases from 20.9°C to 45.5°C as it absorbs 5637 J of heat. What is the mass of the sample?

Respuesta :

Willchemistry Willchemistry

23-05-2016

Q = 5637 J

C =4.814 J/KgºC

Temperature : 45.5ºC - 20.9º C = 24.6ºC

Q = m x C x T

5637 = m x 4.814 x 24.6

5637 = m x 118.4244

m = 5637 / 118.4244

m = 47.60 g

hope this helps!

Answer Link

Otras preguntas

72.3/0.6 What’s the answer?

miss Holman gave a 90 cent tip to a waitress for serving a meal costing $6.00. What percent of the bill was her tip. Please show step by step.

What are the correct answers?

Shavon is sitting in a cold classroom. To keep from feeling cold, she might shiver, have changes in heart rate and metabolism, and changes in the blood flow to

The slope of MN is −3. Which segments are parallel to MN ? Select each correct answer. A= RS, where R is at (1, 3) and S is at (4, 2) B= PQ, where P is at (5, 6

F16–5. A wheel has an angular acceleration of a = (0.5 u) rad>s 2 , where u is in radians. Determine the magnitude of the velocity and acceleration of a poin

A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1180 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is th

What is the tallest monument in the u.S.?

Which italian city is home to the last supper

Calculate the equilibrium constant for the following reaction: 2Cl2(g) + 2H2O(g) ⇌ 4HCl(g) + O2(g) Given: 2MgCl2(s) + O2(g) ⇌ 2MgO(s) + 2Cl2(g) K = 8.59 MgCl2(s