# Posts by Ld

Total # Posts: 12

**Chemistry**

no the answer above is wrong , u cannot assume[HA]+[A-]=0.1 recall back the formula of ionic strength ,then formed two simultaneous equation and solve it

**Math**

A picture must be hung on a wall were the distance from the floor to ceiling is 8 feet. The center of the picture mist be 5 1/4 feet from the floor. Determine the distance from the ceiling to the top of the picture frame How do I do this solve this? Thanks! The picture is 24 ...

**Math**

I'm so sorry. The picture is 24 imcjes wide and 28 inches high

**Math**

A picture must be hung on a wall were the distance from the floor to ceiling is 8 feet. The center of the picture mist be 5 1/4 feet from the floor. Determine the distance from the ceiling to the top of the picture frame How do I do this problem? Thanks!!

**Physics**

as the weight held by a spring increases, the length of the spring increases proportionally. Suppose a 2-lb weight stretches a spring to 15 in., and a 12-lb weight stretches the same spring to 20 in. What is the length of the spring with no weight attached?

**Chemistry**

ya baby i hav the same question

**Chemistry**

what is the percent by volume of 15.0 mL of ethanol in 0.250 L of water?

**Algebra 1**

Randy, Sam, Tim and Will counted the number of puzzles they had solved in two months. Sam has solved twelve more than Tim. Randy had solved seventeen less than Sam.Will had solved twice as many as Randy. They have solved a total of 267 problems. How many puzzles did each ...

**Social Studies**

I need to find and label the largest sheep herding area in Argentina and provide the name of it.

**Windows XP**

You are assisting a salesperson who has called into the Help Desk with a problem. The user’s laptop has a single hard drive, and he is currently using the laptop on the road while visiting potential sales partners. At one sales site, the technical staff assisted the user ...

**Muscular Energy**

it is when u do work, u use ur muscles 2 do it .if ur muscles r weak u r able to do less work

**spelling**

thanks guys