AATT You are a researcher in a geochemistry laboratory. A colleague brought to you a new mineral that you have never seen before. You need to identify all of the elements and their quantities in this mineral. You turn the mineral into a powder and put the mineral into multiple scientific machines to determine what it is made of. Your sample contained the following elements and amounts. • 160 grams of oxygen . 120 grams of silicon • 80 grams of aluminum ● 16 grams of magnesium . 32 grams of calcium. . 4 grams of uranium. Determine the mass percent of the different components in your soil sample. 29. Oxygen 30. Silicon 31. Aluminum 32. Magnesium 33. Calcium 34. Uranium

AATT You are a researcher in a geochemistry laboratory. A colleague brought to you a new mineral that you have never seen before. You need to identify all of the elements and their quantities in this mineral. You turn the mineral into a powder and put the mineral into multiple scientific machines to determine what it is made of. Your sample contained the following elements and amounts. • 160 grams of oxygen . 120 grams of silicon • 80 grams of aluminum ● 16 grams of magnesium . 32 grams of calcium. . 4 grams of uranium. Determine the mass percent of the different components in your soil sample. 29. Oxygen 30. Silicon 31. Aluminum 32. Magnesium 33. Calcium 34. Uranium

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

A nutrition table lists apples with a potassium content of 4600 mg/pound. Assume an average apple is 75.0 g, the minimum daily intake for potassium for a healthy adult is 3500. mg per day. Calculate the number of apples per day to meet this requirement for a healthy adult. Assume 454 g = 1 pound. O 7.96 apples per day O 0.126 apples per day O 0.217 apples per day O 4.61 apples per day
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the course of their duties. One such investigator, while reorganizing their shelves, has mixed up several small vials and is unsure about the identity of a certain powder. Elemental analysis of the compound reveals that it is 67.31 % carbon, 6.978% hydrogen, 4.617% nitrogen, and 21.10% oxygen by mass. Which of the compounds could the powder be? C17H19NO3C17H19NO3 = morphine, analgesic C17H21NO4C17H21NO4 = cocaine, illicit drug C7H5N3O6C7H5N3O6 = 2,4,6-trinitrotoluene (TNT), commonly used explosive C10H15NC10H15N = methamphetamine, stimulant C4H5N2OC4H5N2O = caffeine, stimulant C11H15NO2C11H15NO2 = 3,4-methylenedioxymethamphetamine (MDMA), illicit drug C21H23NO5C21H23NO5 = heroin, illicit drug C3H6NO3C3H6NO3 = hexamethylene triperoxide diamine (HMTD), commonly used explosive
You are given pure serine in powder form, and you are asked to make exactly 20 mL of a 20 μM solution. How much serine powder (in μg) would you need to make such a solution? For this problem, assume that carbon has molar mass of 12 amu, hydrogen 1 amu, nitrogen 14 amu, oxygen 16 amu, and sulfur 32 amu. You must compute the molecular weight of serine after drawing it; do not look up the molecular weight on google. Show your unit conversion fully step by step
Chemical equation involved: Baking soda + Vinegar Sodium Acetate + Heat Write the correct chemical formulas of the reactants and product. > Balance the chemical equation. > Identify the type of Chemical reaction.
A student needs to produce 19.09 grams of nitrogen gas (N2) for a lab experiment. How many grams of ammonia (NH3) will be required to produce this amount of nitrogen? Round your answer to the nearest 0.01 and remember to include units and substance! NH3 --> N2 + H2
A student needs to produce 27.42 grams of nitrogen gas (N2) for a lab experiment. How many grams of ammonia (NH3) will be required to produce this amount of nitrogen? Round your answer to the nearest 0.01 and remember to include units and substance! NH3 --> N2 + H2
A 1.58 mole sample of a pure unknown substance has a density of 1.87 g/cm3. If the sample occupies a volume of 188. cm3, what is the identity of the substance in the samples? Element Molar Mass Cadmium 112.411 Francium 223.02 Barium 137.327 Terbium 158.925 Molybdenum 95.95 Terbium Molybdenum Cadmium Francium Barium
Platinum is a precious metal that is used as a catalyst for many important industrial reactions. Platinum can be purified by reacting platinum(IV) bromide solution with aluminium metal. To test this purification process, a student reacted 14.6 kg of aluminium metal with excess platinum(IV) bromide solution. After the reaction was complete, the student had extracted 75.4 kg of platinum metal. From this data, calculate the percent error of this experiment. Hint: Write a balanced chemical reaction equation and calculate the theoretical yield of platinum first. Do not show your work in the space provided. Record only your final answer with the correct number of significant digits and the proper units. Answer: Evaluate your calculated percent error, is this an acceptable percent error?
Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB. The density of copper is 8.96 g/cm ^ 3 . The density of lead is 11.4 g/cm ^ 3
Suppose you start with 0.305 g of copper. Compute the theoretical yield of copper(II) phosphate using the procedure from your lab manual. Based on what you saw as you performed the experiment, what practical obstacles are there to weighing the copper(II) phosphate to check its actual yield?
A student performed an experiment in Lesson 2 (the chemical reaction is shown below). The student's total measured mass of reactants was 14.87 g. Ideally, what should the mass of the products be? Explain your answer using the law of conservation of mass.
Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick of C-4 measuring 82 mm x 100.0 mm x 165.0 mm.