Answer:
The corect answer is d. all of the above. The complete explanation is given below.
Explanation:
A Material Safety Data Sheet (MSDS) is a document with a description about potential hazards (health, environment, reactivity, etc.), physical properties, how to storage and how to manipulate and work safely with a given chemical product or substance. These kind of documents are standarized to a correct interpretation of final user. When someone purchased a chemical, chemical supply companies must provide the respective MSDS. However this kind of label are not legally required to be accurate.
False. volume is the amount of space the object occupies.
pH = 4.82
[H⁺] = 1.5 × 10⁻⁵ mol·L⁻¹.
pH = -log[H⁺] = -log(1.5 × 10⁻⁵) = 4.82
Hello!
Answer: 14.3%
Explanation: In order to find the mass percent of hydrogen in this compound, you must determine how many grams of hydrogen you'd get in 100 g of compound.
In your case, you know that an unknown mass of hydrogen reacts with 0.771 g of carbon to form 0.90 g of hydrocarbon, which is a compound that contains only carbon and hydrogen.
Use the total mass of the hydrocarbon to determine how many grams of hydrogen reacted with the carbon.
Now, if 0.90 g of this compound contain 0.129 g of hydrogen, it follows that 100 g of this compound will contain.
So, if 100 g of this compound contain 14.33 g of hydrogen, it follows that the mass percent of hydrogen is 14.3%
Hope this Helps! Have A Wonderful Day! :)
