One mole of silicon has a mass of 28.1 g, and one mole of oxygen has a mass of 16.0 g. What is the mass of one mole of silicon dioxide? Molar Mass: The molar mass pertains to the mass of one mole of a ...
(b) 4 moles of aluminium atoms (Atomic mass of aluminium = 27)? (c) 10 moles of sodium sulphite(Na2SO3)? View Solution (a) Calculate the formula unit mass ofNa2SO4 (b) What is the mass of one mole of sulphur atoms? (c) Convert 12 g of oxygen into mole. ...
If one mole of nitrogen molecules weighs28g, calculate the mass of one molecule of nitrogen in grams. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep,...
The molar mass of a substance is the mass of one mole of that substance. What is the unit of molar mass? A. g/mol B. mol/g C. L/mol D. mol/L 相关知识点: 试题来源: 解析 A。本题考查摩尔质量的单位。摩尔质量是指单位物质的量的物质所具有的质量,单位是克每摩尔(g/mol)。选项 B ...
What is the mole ratio of oxygen to carbon dioxide in the following equation? {eq}C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O {/eq} a. 2:2 b. 3:5 c. 5:3 d. 10:6 Mole Ratio: It is a ratio comparing th...
What is the volume of 3.5 moles of oxygen gas (O2) at standard temperature and pressure (STP)? At STP, what is the volume of 1.00 mole of carbon dioxide? At STP, what is the volume of 1.0 mole of carbon dioxide? How many moles of gas are present in a 10.0 liter sample at STP?
When 6.66 g of methane (CH_4) gas, was burned in excess oxygen at 75 degrees C, the internal energy change was -367.2 kJ. Calculate the enthalpy change for the combustion of one mole of methane at 75 degrees C. Using the standard heats of formation, what is ...
Mole (Chemistry) (TerminologyTerms and phrases (EvaluationJeannin, YvesMills, Ian MInternationalunionofpureandappliedchemistryJeannin Y 2010 A fixed Avogadro constant or a fixed carbon-12 molar mass: which one to choose? Chem. Int. 32 (January-February) 8-10...
grams of oxygen gas = 0.3 grams It should be fairly obvious that you could have plugged in the mole fraction right away in this particular example because only one type of atom was present on both sides of the equation. However, it's good to know the procedure for when you come across...
Look up the atomic masses of carbon and oxygen. This is the number of grams per mole of atoms. Carbon (C) has 12.01 grams per mole. Oxygen (O) has 16.00 grams per mole. One molecule ofcarbon dioxidecontains 1 carbon atom and 2 oxygen atoms, so: ...