1.To make the following saline solution (375ml 0.5% w/v sodium chloride). I have weighed 1.875g of NaCl. What will be the volume of water that is required?
there were 360 pumpkins in a pumpkin patch , but it was difficult for farmer alexander to find the perfect pumpkin. evry third pumpkin was too small. every fourth pumpkin was too green. every fifth pumpkin had a broken stem. every sixth pumpkin had the wrong shape. How many pe...
Is the correct answer 1400.
At Strawberry State College, the ratio of females to males is 2:1. If there are 2100 students, how many are female and how many are male?
On a TV game show, a contestant makes $800 for every correct answer but loses $500 for every wrong answer. After answering 26 questions, Sarah broke even. How many questions did she answer correctly?
what is acceleration of an object over a 4second period if its starting velocity is 8 m/s and it velocity is 20 m/s?
I would like to know what volume of water you use? How to calculate the volume of water?
2. Sulfuric acid comes from the oxidation of sulfur. The stages of the reactions are given below: S + O2 --> SO2 ∆H= -296.8 kj SO2 + 1/2 O2 --> SO3 ∆H= -98.9 kj SO3 + H2O --> H2SO4 ∆H= -130.0 kj The typical plant produces 750 tons of H2SO4 per day. C...
Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of unknown gas. How many times heavier is a molecule of the unknown gas than an atom of helium?