By knocking the glass vase, a student chipped off 0.070 g square of glass. How many silicon dioxide molecules were chipped off the vase?
Moles of SiO2 = 0.070/60
Number of molecules = 0.070×6.022×1023/60
= 7.02×1020 molecules
By knocking the glass vase, a student chipped off 0.070 g square of glass. How many...
How many molecules in a glass of water (.5L)
how many glasses of water (.5L) are in the ocean
divide molecules
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(a) How many moles of ammonium ions are in 0.777 g of ammonium carbonate? (b) What is the mass, in grams, of 0.0421 mol of iron(III) phosphate? (c) What is the mass, in grams, of 5.12 1023 molecules of aspirin, C9H8O4? (d) What is the molar mass of a particular compound if 0.070 mol weighs 6.46 g?
How many molecules of carbon dioxide will be formed if 6.75 g of propane is burned in the reaction below? C3H3()+502() 3C02()+4H20(8) © 1.22 x 1025 molecules 9.22 x 1022 molecules 3.69 x 102 molecules 2.77 x 1023 molecules 4.61 x 1023 molecules
Refer to the following equation: 4NH3(g) + 7O2(g) ® 4NO2(g) + 6H2O(g) How many molecules of water are produced for each mole of NO2 given off?
For the balanced equation, I got: C6H12+9O2=6CO2+6H2O...is
this correct?
A student in the chemistry lab reacted liquid hexane (C_6H_14) with oxygen of the air to produce carbon dioxide gas and liquid water. Write a balanced chemical equation for the reaction How many O_2 molecules are required to react completely with 48.8 g of C_6H_14? How many grams of carbon dioxide are produced from 48.8 g of C_6H_14?
A. How many moles of silicon dioxide, SiO2 , are present in a sample that contains 3.61 moles of oxygen atoms? B. How many moles of oxygen atoms are present in a sample that contains 2.95 moles of SiO2 ? C. How many moles of sulfur atoms are present in a sample that contains 1.92 moles of disulfur decafluoride, S2F10 ? D.How many moles of S2F10 molecules are present in a sample that contains 6.13 moles of sulfur atoms? E....
How many molecules of WO3 are there in 154.6 g of WO3? How many atoms of H are there in 56.4g of H2O? How many molecules of B are there in 22.6g of B2O3?
2. A normal dose of ibuprofen is 200. mg. How many ibuprofen molecules are there in a dose of ibuprofen? The molecular formula of ibuprofen is C13H18O2. (Hint: grams to mol and mol to molecules) 3-Propane fuel is used in BBQs. Use the following reaction to determine how many moles of carbon dioxide gas are produced from burning of 6 moles of propane gas. C3H8(g) + 5O2(g) ® 4H2O(g) + 3CO2(g) 4- A. If a person inhales 51 moles of oxygen,...
According to the following reaction, how many grams of dichloromethane (CH2CH) will be formed upon the complete reaction of 23.9 grams of carbon tetrachloride with excess methane (CH) ? methane (CH)(8) + carbon tetrachloride(g) - dichloromethane (CH2Cl() grams dichloromethane (CH,CI») Submit Answer According to the following reaction, how many grams of nitrogen gas will be formed upon the complete reaction of 26.2 grams of ammonium nitrite ? ammonium nitrite(aq) nitrogen(g) + water(1) L g rams nitrogen gas Submit Answer According...
A student weighs out a 0.3708 g sample of KHP. How many moles of KHP is in that sample? The molar mass is 204.2212 g/mol.