how many mg does a 433 kg sample contain? Please answer in unit converstion form.

The compound PClx contains 85.14% chlorine by mass. What is the value of x? Enter your response as a whole number.

Excesdrin headache pain relief extra strength contains 250mg of acetaminophen, C8H9NO2 per tablet. How many molecules of acetaminophen are present in a tablet of this medication?

please make sure the answer has the correct number of significant digits

A7

A mixture contains 16.3% A by mass and 67.3% component B by mass. The remainder is component C. If you have 75.3 g of this mixture how many grams of component C are there? Please show all your calculations and report answer in correct significant figures below to get full credit.

0.145 mol C2 H6 Express your answer using three significant figures. VC = mol Submit Request Answer Part C 4.66 mol C4H10 Express your answer using three significant figures. ? VC = mol

A 0.235 mL sample of carbon tetrachloride (density = 1.59 g/mL, MM = 153.81 g/mol) contains how many AMU of Cl? Note: Use 6.022 x 1023 and/or 1.661 x 10-24 as appropriate. 5.18 x 1022 2.42 x 10-3 2.07 x 1020 1.30 x 1022 2.07 x 1023 0.333 g of a hydrocarbon (CxHy) was analyzed by combustion analysis and 1.009 g of CO2 (MM = 44.01 g/mol) and 0.516 g of H2O (MM = 18.02 g/mol).   Which of the following is the correct empirical formula of the hydrocarbon?    C2H4 C2H5 C3H7 C2H3 CH3

Calculate the mass percent composition of each of the following Part A. 6.00 g of Si and 5.55 g of O Part B. 5.30 g of C and 1.55 g of H Part C. 16.7 g of Na, 22.5 g of S, and 11.0 g of O Part D. 6.67 g of C, 1.04 g of H, and 4.14 g of O Express your answers using three significant figures separated by commas.

Use the information given to you  below to solve/calcualte the rest of the table. Please show all work on how you reached your answers.  Formula of Hydrate: CuSo4*5H2O Weight of Hydrate and Evaporating Dish: 63.961 g Weight of Empty Evaporating Dish: 54.020 g Weight of Hydrate: ? Weight of Sample and Evaporating Dish after 1st Heating: 60.435 g  Weight of Sample and Evaporating Dish after 2nd Heating: 60.381 g Weight of Sample and Evaporating Dish after 3rd heating: 60.381 g Weight of Anydride and Evaporating Dish: 60.381 g Weight of Water lost: ? Weight of Anhydride: ? Experimental Percent Water: ?  Theoretical Percent Water: ?  Percent Error: ? Moles of Water: ? Moles of Anhydride: ? Ratio of Moles of Water to Molves of Anhydride: ? Experimental Formule of Hydrate: ? Please show all work on how you came to each answer. Thank you!