To how many significant figures should each answer be rounded?(6.626x 10-34 Js) (2.9979x 108 m/s)4.410 x 10-7 mequation A:After rounding, the answer to equation A should haveO2 significant figures.O 3 significant figures.O 5 significant figures.O4 significant figures.O 1 significant figure.equation B:(6.022x 1023 atoms/mol) (0.693 g)20.18 g/molAfter rounding, the answer to equation B should haveO2 significant figures.= 4.504327755102 x 10-19 J (unrounded)= 2.068 x 1022 atoms (unrounded)

In significant figures, an appropriate significant figure in the answer will be equal to the least…

To how many significant figures should each answer be rounded? (6.626x 10-34 Js) (2.9979x 108 m/s) 4.410 x 10-7 m equation A: After rounding, the answer to equation A should have O2 significant figures. 3 significant figures. 5 significant figures. 4 significant figures. O 1 significant figure. equation B: (6.022x 1023 atoms/mol) (0.693 g) 20.18 g/mol = 4.504327755102 x 10-19 J (unrounded) = 2.068 x 1022 atoms (unrounded)

To how many significant figures should each answer be rounded? (6.626x 10-34 Js) (2.9979x 108 m/s) 4.410 x 10-7 m equation A: After rounding, the answer to equation A should have O2 significant figures. 3 significant figures. 5 significant figures. 4 significant figures. O 1 significant figure. equation B: (6.022x 1023 atoms/mol) (0.693 g) 20.18 g/mol = 4.504327755102 x 10-19 J (unrounded) = 2.068 x 1022 atoms (unrounded)

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 6ALQ: You have a chemical in a sealed glass container filled with air. The setup is sitting on a balance...

See similar textbooks

Similar questions

Calcium carbonate is used in many antacids to neutralize stomach acid, as depicted by the following chemical equation: CaCO3(s) + 2 HCl(aq) → CaCl2 + H2O(l) + CO2(g) If 250. mg of calcium carbonate reacts with 0.459 g of hydrochloric acid, how much hydrochloric acid will remain? Provide your answer in g to 3 decimal places.
Consider the following unbalanced reaction:P4 + O2 → P4O6If 3.28 g of P4 is reacted with 9.55 g of O2, how much P4O6, in grams, can be formed? Report your answer to two decimal places.
4Cr(s)+3O2(g)→2Cr2O3(s) Given 16.0 gg of O2, how many grams of the product Cr2O3 could be produced? Express your answer with one decimal place and with appropriate units.
How many grams of product can be made from 75.00 grams of phosphorus? Express your answer with the correct number of significant figures. 4P(s) + 5O2(g) → 2P2O5(s)
C5H12(l) + 8 O2 (g) --> 6 H2O (g) + 5 CO2 (g) How many moles of CO2 will be produced by 53.9 grams of C5H12 ? Round your answer to 2 decimal places.
How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe (s) + 4 H2O (g) →Δ Fe3O4 (s) + 4 H2 (g) Enter your answer in grams for water into the first answer field in accordance with the question statement. g H2OEnter your answer in grams for iron into the second answer field in accordance with the question statement. g Fe
A beaker contains 100.0 mL of water. To it is added 10.0 mL of dilute nitric acid (HNO3). Calculate the total moles of water in the beaker after the acid is added. (Assume the density of the nitric acid is the same as that of water.) Density of water= 1.00 g/mL
Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . If 30.6g of carbon dioxide is produced from the reaction of 31.0g of hexane and 56.9g of oxygen gas, calculate the percent yield of carbon dioxide. Be sure your answer has the correct number of significant digits in it.
In the reaction: KClO3(aq) + 5KCl(aq) + 6HNO3(aq) → 6KNO3(aq) + 3Cl2(g) + 3H2O(l) How many grams of KClO3 are required to prepare 10.0 g of Cl2? Report your answer in standard notation using 3 significant figures.
1. A student collected the following data during Lab: Mass of MgCO3 hydrate = 0.9987 g. Constant mass of anhydrous MgCO3 = 0.4831 g How many moles of water were in the MgCO3 hydrate? 2. A student uses gravimetric determination to find the water of hydration of a hydrated sample of cobalt (II) sulfate. The student’s sample contained 0.0098459 moles of anhydrous cobalt(II) sulfate (CoSO4) and 0.068921 moles of water (H2O). What is the formula of the cobalt(II) sulfate hydrate? 3. A student has a sample of CaSO4 hydrate and it weighs 0.4813 grams. He heats it strongly to drive off the water of hydration, and after subsequent heatings, the student finds the anhydrous compound has a constant mass of 0.3750 grams. Find the formula of the hydrate.
Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . What is the theoretical yield of carbon dioxide formed from the reaction of 80.1g of hexane and 84.8g of oxygen gas?Be sure your answer has the correct number of significant digits in it.
Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O . If 3.49g of carbon dioxide is produced from the reaction of 1.7g of hexane and 9.7g of oxygen gas, calculate the percent yield of carbon dioxide.Be sure your answer has the correct number of significant digits in it.