significant_figures_practice

sity o... Fingsbo... ckboard... EARED4 Method? 7... 9 2 W 6 9 QUESTION 5 One mole of copper(II) sulfate, CuSO4, contains 2.41 x 1023 2.41 x 1024 6.02 x 1023 1.51 x 1023 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. 3 16 MAF 1 23 H R T moles of O. tv Y 8 Save All Answers 8 0.22 S

F. 15.2 m/s 1--1 - What is the molar mass (in kg/mol) of carbon tetrachloride (CC14)? 6 17 C Cl 12.01 35.45 2. A. 0.2535 kg/mol D. 0.2971 kg/mol B. 0.3026 kg/mol E. 0.09617 kg/mol C. 0.0834_kg/mol F. 0.1538 kg/mol 1--1 What is the average kinetic energy of a molecule of oxygen gas (0₂) at a temperatur 8 O

versity o... - Kingsbo... lackboard... LEARED4 Method? 7... O True O False QUESTION 9 The molar mass of copper(II) chloride is 134.5 g/mole. O True False Click Save and Submit to save and submit. Click Save All Answers to save all answer 16 MAR 1 23 245 tv Sav

Solve correctly please. Need all a to d parts. (Gpt/ai wrong answer not allowed)

1. Moles of NaHCO3 and NaCl:2. Mole Ratio:3. How does your experimental ratio compare to the theoretical? If they are different,explain what might have caused the difference.4. Calculate the percent error.

Br Br 2. 1. Mg. Et₂0 3. H3O+ 1. Mg Et₂O 1. Mg Et₂0 2. 3. H3O+ Дон 2. H 3. H3O+ CH3 /Et₂0 0/E1₂0 Et₂0

What is the percent by mass of oxygen in Al 2(SO 3) 3? (At. mass: Al=26.98; S=32.07;0=16.00) a. 18.34% b. 32.71% C. 35.4% d. 28.1% e. 48.95%

EN-US My Notes DOO ... L.. Table 1.2 ; Data sheet/ Part B RART B Record your data with units unknown Letter mass of empty evaporating dish 41.35g mass of unknown sample 3.01g mass of petri dish half t Clean funnel mass of petri dish half+ funnel + Sublimed NHYC) mass of evaporating dish With residue atfter Sublimator mass of evaporating dish and sand, first drying att empt. mass of evaporating dish and dry sand after setond 43.07g 43.079 Lab3: Sublimah on Crroup #12 Februany 26, 202

35

ome some City University o... Works - Kingsbo... both - Blackboard... tion-CLEARED4 Scientific Method? 7... # 2 6.02 QUESTION 7 One mole of particles of any substance contains how many particles? 3 × 10-10 particles 3 x 1010 particles 106 particles 6.02 x 10-23 particles 6.02 x 1023 particles Click Save and Submit to save and submit. Click Save All Answers to save all ans 3 16 MAR 23 245 átv 7 2

105 g of MgCl2 contains ________ mol MgCl2. Group of answer choices 1.76 1.10 1.06 x 1024 6.62 x 1023 105

1Mg + 1H2SO4 1MgSO4 + ___H22. 3Fe + ___O2 1Fe3O43. 2Pb(NO3)2  2PbO + ___NO2 + 1O24. ___C2H6 + 7O2 4CO2 + 6H2O5. 2BaO2 ___BaO + 1O26. 1MnO2 + 4HCl1MnCl2 + ___H2O + 1Cl27. 2C3H6 + 9O2 ___CO2 + 6H2O8. 2KMnO4 + ___HCl2KCl + 2MnCl2 + 4H2O + 1Cl2

I'm stuck on step 3. find the formula - Divide each by the smallest number to get while number ratio for the formula  With the information I've provided under attachments can you help? I don't know how to calculate the smallest number to get the ratio for the formula.

Please show the work on notebook papers. 1,2,3,4 Part. Chemistry

Question 31.

8. Calculate the number of grams in the following in 1.77 moles of nitrogen dioxide, NO2. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. 9. Calculate the number of grams in the following 0.84 mole of 2-propanol, C3H30, rubbing alcohol. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. 10. Calculate the number of moles in 4.9 x 10³ grams of vitamin C (C6HgO6). Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. 11. Calculate the number of moles of sodium ions in 6.56 moles of Na,S. Must Show work with units and correct number of significant digits. Round atomic weight off periodic table to two decimal places. 12. Calculate the number of molecules in 8.320 moles of Mg3(PO4)2, Must Show work with units and correct number of significant digits. Round…

to Bartleby learn! - lyna X b Answered: How many moles of a X + app.101edu.co Apps Settings YouTube O YouTube Maps Maps 9 News 9 News Forums Power Tra... RCFE Certification P... RCFE Administrator... Question 8 of 31 Aluminium has a density of 2.70 g/cm³. How many moles of aluminum are in a 13.2 cm3 block of the metal substance? STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) G 6.022 x 1023 1.32 2.70 962 0.489 0.100 26.98 13.2 35.6 g Al molecules AI mol Al g/cm3 cm3 g Al/mol 12:14 PM e Type here to search 10/27/2020 EsC DII PrtScn Home End PgUp F1 F2 F3 F4 F5 F6 E7 58

Calculate the mass of FeS formed when 9.42 g of Fe reacts with 8.50 g of S. Fe(s) + S(s) FeS(s) Select one: a. 17.9 g -3 b. 1.91 x 10 c. 87.9 g d. 14.8 g e. 26.0 g Previous pag Return to: General )

What is the mass of aluminum oxide (101.96 g/mol) produced from 3.59 g of iron(II) oxide (71.85 g/mol)?__FeO(l) + __Al(l)  __Fe(l) + __Al2O3(s)   a.  1.70 g b. 0.842 g c. 5.10 g d. 7.58 g e. 15.3 g

Ethylenediaminetetraacetic acid (EDTA) is a chemical that binds metals such as lead, to treat lead poisoning. Its chemical formula is (C10H16N2O8). What is the mass percent of oxygen in EDTA?   a. 9.59% b. 14.0% c.22.2% d. 43.8%