Four moles of carbon monoxide (CO) has 48 grams of carbon (C) and 64 grams of oxygen (O). What is the percent composition of carbon in carbon monoxide?

6.25%

8.3%

43%

75.0%

A 30.00 mL solution of 0.100M benzoic acid, a monoprotic acid, is titrated with 0.100M NaOH. The Ka is 6.3x10^-5. Determine the pH of the solution after the volumes of NaOH given were added. a. 0ml b. 10.00ml c. 30.00ml d. 40.00ml

A person who is interested in the brain and its functions might pursue a career in A) endocrinology B) gene therapy C) neuroscience D) sports medicine

An athlete with a high count of red blood cells will perform well in tests of physical endurance because (a) waste products will be removed from the body easily. (b) excess levels of glucose will increase levels of respiration.

Ionic bonding would most likely occur between which two elements?

In which state of matter would you expect to find water, at 20°C on Earth?

C). If 0.5 mole of oxygen (0,) reacted with hydrogen (H2), how many mole of water (H, 0) was produced from the reaction?

A cube has a depth of 10 cm. What is the volume of the cube? Or What is depth?

A sample of NO2 in a 1550 mL metal cylinder at 70.26 kPa has its temperature changed from 480oC to - 237oC while its volume is simultaneously changed by a piston to 5114 mL. What is the final pressure in kPa?

How many grams of methane gas (CH4) are in a 15.8-liter sample at 1.2 atmospheres and 27°C? Show all work used to solve this problem

Oxygen forms a number of compounds with sulfur, many of which are quite reactive. One such compound is 57.20 % by mass S. Calculate the number of grams of oxygen present in a sample of this compound that contains 50.00 grams of S.