how do I round 0.004198 to 3 sig figs

Pls help ASAP. Pls give proper units and significant digits to three. Pls circle the final answer as well.

00 %2A # 3. 5o09 awww.awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lijulplKKWv4bwenmyrLYoBHBAAsJtmzj53GErnx_viTdHblGMF9jvgkSu_nrizREmdQXHPJbMzqOmOrXJcuonZITOhB66q?1oBw7QYlbav. LEKS-Courtney Wh New Tab + x O CHEMICAL REACTIONS Percent yield of chemical reactions Courtney S0 OC Gaseous butane CH. reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0). If 2.32 g of water is produced from the reaction of 1.74 g of butane and 10.2 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it. % 固 Explanation Check ©2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility 24 %23 2 4. 9. 5. 8. by k 4 69 C. alt 123

What is the solubility of KCI at 80C 150 140 KI 130 120 110 100 NANO3 90 80 70 60 NH4CI KCI NacCl 50 40 30 20 KCIÓ3 10 Ce2(SO4)3 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) DELL Grams of solute per 100 g H,0 NH37 EONX

Masses of compounds used and observations NaCI CuSO4-5H20 Bright blue crystaline solids (NH4)2Fe(SO4)2 pale, Blue-green crystalline solid colorless Crystals Appearance of solid Mass of vial and 12.8364 12.7398 12.9445 compound (g) Mass of emptied vial (g) 11.6023 11.4888 11.9221 Mass of compound used (g) 1.2341. 1.2510. 1.0224 Volume of prepared solution = Type response here. Mass of sodium chloride used = Type response here.

Cl₂(g) + 2e Cr₂0 (aq) + 14 H(aq) + 6e¯ 02(g) +4H(aq) + 4e¯ MnO2(s) + 4H(aq) + 2e 103 (aq) +6H(aq) + 5e¯ VO₂ (aq) + 2H(aq) + e¯ Br₂() + 2e NO, (aq) + 4H(aq) + 3e¯ ClO2(g) + e Ag+(aq) + e 2 CT (aq) 1.36 2 Cr3+(aq) + 7 H₂O(1) 1.33 2 H₂O(1) 1.23 Mn2+(aq) + 2 H2O() 1.21 12(aq) + 3H2O(l) VO2+(aq) + H2O(l) 1.20 1.00 2 Br (aq) 1.09 NO(s) + 2 H2O(l) CIO₂(aq) 0.96 0.95 Ag(s) 0.80 0.77 Fe3+(aq) + e Fe2+(aq) A mixture of Fe3+, CIO₂, and Cr₂O,² was made, what reaction would be predicted, if any? a. Fe3+ + Cr2O7²- b. Cr2O + Clo²- c. Fe3+ Clo²- d. No reaction. -> -> Fe²+ + Cr³+. - Cr3+ + ClO2. Fe²+ + ClO2.

A compound contains only Mn and F. The ratio of Mn and F is 2.54 moles of F per 1 mole of Mn. If the empirical formula is expressed at Mnfx, what is the numerial value of x?

45. | You find that if you hang a 1.25 kg weight from a vertical spring, it stretches 3.75 cm. (a) What is the force constant of this spring in N/m? (b) How much mass should you hang from the spring so it will stretch by 8.13 cm from its original, unstretched length?

aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X Dom

Examples Cl2 / CCI4 a. 33 Study Unit 7 Br2 / CC4 b.