The purpose of this lab was to determine the effect of temperature on the volume of gas when the pressure is consistent and to verify Charles’ Law. The data from the experiment reveals that as temperature increases, so does volume. This also indicates that as temperature decreases, the volume decreases as well.…
The purpose of this lab was to determine the atomic weight of magnesium by measuring the amount of hydrogen gas evolved when hydrochloric acid reacted with magnesium. In order to measure the atomic weight I needed to measure the amount of the hydrogen gas that was evolved in reaction to the acid of the magnesium. The reaction used was: Mg + 2HCl --> H2 + Mg2+ (aq) + 2Cl- (aq). The major findings of this experiment were that there was a chemical reaction between hydrochloric acid and magnesium, and the reaction produced the hydrogen gas. The results also indicated how many moles of hydrogen gas were equal to the amount of moles of magnesium consumed.…
n = 1.074 atm x 0.03 L / 0.0821 x 295.15 K = 0.00133 mol H2…
Examine your skull model and describe some ways in which the mandible is different from the other bones of the skull.…
enantiomer of the molecule Naproxen is used to treat arthritis pain but the other enantiomer…
A. Why is the study of histology important in the overall understanding of anatomy and physiology?…
Review Sheet Results 1. Describe two variables that affect the rate of diffusion. Your answer: Increasing the number of membrane carriers and the concentration.…
Molar masses, can be seen and used daily in chemistry. In this lab, the ideal gas law helps determine and evaluate the molar mass of gases and volatile liquids. The ideal gas law compares four properties of a gas which include pressure, volume, moles, and temperature. During this experiment, the moles would be unknown, in effect the student must use a substance mass divided by its molar mass. With this, the ideal gas law can be arranged in an equation fit for helping the student determine the molar mass of a gas.…
2 - Cool the solution to room temperature and add ~ 0.5 to 1 ml of bromocresol green indicator,solution turns into blue. Titrate it with HCl until green color is reached. (DO NOT OVER TITRATE)…
Which type of compound usually has higher melting points: ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) Ionic compounds have higher melting and boiling points than covalent compounds. The electrostatic attraction in an ionic bond is very strong hence a lot of heat energy is required to break it down, ionic bonds have high melting and boiling points. In covalent bonds, the intermolecular forces are very weak and are easily broken, hence lesser heat is required and thus covalent bonds have lower melting and boiling points.…
1-2: In the space below, list the chemicals above from the MOST abundant in the human body to the LEAST abundant.…
10. Used the combined gas law to determine the volume (in L) of butane at STP…
In your own words, summarize what you have learned about Configuring Static and Default Routes.…
To a 150-mL, 0.1 gram of sodium hydrogen (solid) was measured and added. Drop wise, 1 mL of 1.0 M HCl was slowly added. The characteristics of the reaction were recorded.…
The purpose of this experiment is to become familiar with the precision and accuracy of scientific glassware.…