# re

Most popular questions and responses by re
1. ## chemistry

A saturated solution was formed when 4.48×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 C, was dissolved in 1.0 L of water. Calculate the Henry's law constant for argon in mol/atm. I got an answer of 1.4*10^-3, maybe my units are

2. ## math

What is the third quartile, Q3, of the following distribution? 10, 25, 18, 31, 16, 27, 5, 13, 32, 24, 15, 21, 18, 18, 24, 4, 8, 11, 11, 23

3. ## Chemistry

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.6 L of water upon warming from 25 C to 50 C. Assume that the water is initially saturated with nitrogen and oxygen gas at

4. ## Physics

Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1490 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

5. ## chemistry

rank the following ionic compounds in order of increasing lattice energy NaF, Csl, CaO

6. ## math

Graph the equation in the rectangular coordinate system. -5y = -40 How should the line be going?

7. ## geometry

Three interior angles of a quadrilateral have measures of 52∘, 53∘, and 154∘. Find the fourth angle measure.

8. ## CHEMISTRY

Suppose that 1.01g of rubbing alcohol(C3H8O) evaporates from a 56.0g aluminum block. If the aluminum block is initially at 25'C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the

9. ## chemistry

How much energy is released when 48.5 g of water freezes?

10. ## Chemistry

A solution containing 26.40 mg of an unknown protein per 22.5 mL solution was found to have an osmotic pressure of 3.95 torr at 21 C. What is the molar mass of the protein?

11. ## physics

The drawing shows a force vector vector F that has a magnitude of 600 newtons. It lies at alpha = 67° from the positive z axis, and beta = 31° from the positive x axis. (that's the diagram given) webassign. (delete this space) net/CJ/p1-39alt.gif (a)

12. ## Math

An instructor gives regular 20-point quizzes and 100-point exams in a mathematics course. Average scores for six students, given as ordered pairs (x,y) where x is the average quiz score and y is the average test score, are (18, 87), (10, 55), (19, 96),

13. ## math

There are 5 options on the dessert menu at a restaurant. Erin and Ellen like all of the choices equally, so they each choose a dessert at random from the menu. What is the probability that Erin will choose apple pie and Ellen will choose strawberry

14. ## chemistry

what would be the vapor pressure of water in a solution wiith 23.7g NaCl dissolved in 500mL of water at 50degrees centigrade

15. ## algebra 2

Solve the problem. The growth in the population of a certain rodent at a dump site fits the exponential function A(t)= 164e0.032t, where t is the number of years since 1975. Estimate the population in the year 2000.

16. ## Physics

It takes 180 kJ of work to accelerate a car from 21.0 m/s to 27.5 m/s. What is the car's mass? kg?

17. ## physics

A hot-air balloon is rising upward with a constant speed of 2.95 m/s. When the balloon is 3.30 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

18. ## math

how long does the equation od pi go on?

19. ## Math

-2/5 x -1 1/4 I'm confused on how to solve this. can someone help?

20. ## algebra/math

Jamal is in charge of 3 lemonade stands at Summer Fun Day. He has 4 pitchers that will hold 9, 5,4 and 2 quarts. The largest pitcher is filled with lemonade, and the others are empty. How can Jamal use the pitchers to be sure he has pitchers with 3 quarts

21. ## algebra

maddie has 13-, 5-, 4-, and 2-liter pitchers. If she starts with the 3 smaller pitchers filled with water, how can she have pitchers with 5,3, and 3 liters of water?

22. ## calculus

Lim as x approaches 2 of (x^2-kx+4)/(x^3-8)

23. ## calculus

Lim as x approaches 2 of (x^2-kx+4)/(x^3-8)

24. ## algebra 2

Find the function value. Let f(x) = e3x. Find f(0.06), rounded to four decimal places.

25. ## math

Decide whether the relation is a function or not {(-4, -8), (-1, 2), (2, -2), (6, 1)}

26. ## Math

3 Islands K,M, H= 5300 miles squared H 3293 miles squared larger than M M is 177 miles squared larger than K What is the individual areas of Islands

1. ## social studies

ramdomthing is correct

posted on April 22, 2019
2. ## Physics

qwer

posted on February 12, 2018
3. ## Math

posted on December 19, 2017
4. ## Math

Ok thank you! I think i understand now :D

posted on October 16, 2017
5. ## Algebra

You multiply the 10 by 10 to make the fraction out of 100. then do the same thing to 6, and you get 60!

posted on August 23, 2017
6. ## math

42 its always 42

posted on January 12, 2016
7. ## math

10

posted on January 12, 2016
8. ## Math -- Algebra

HE WANTED A SANDWICH

posted on December 1, 2015
9. ## physics

What is the answer? I need it.

posted on July 15, 2014