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Da Vinci Changing Pad $39 Made from polyurethane foam, this changing pad is hand sewn and will fit all DaVinci changing tables. Dimensions:34"L x 17"W x 1"H Gift Wrap not available. Shipping Note: This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO boxes, US territories, or APO/FPO addresses. |
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Dekor Terry Changing Pad Cover – Blue $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
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Dekor Terry Changing Pad Cover – Natural $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
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Dekor Terry Changing Pad Cover – Pink $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
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Cariboo Classic Changing Table – Teak $394.95 Cariboo is a line of children’s furniture that showcases elegant design with practical features. Designed and made in New Zealand, the Cariboo line is constructed of sustainable Radiata wood. The coordinating bassinets and changing tables blend easily with the most stylish home decor. Each piece will be a striking addition to any nursery or master bedroom. The timeless beauty of the Cariboo Classic Changing Table adds a touch of class to any nursery. The Classic Changing Table also has long term use as a stand for toys or books when a changing table is no longer needed. The Classic Changing Table is environmentally friendly, made from sustainable New Zealand Radiata wood. Comes complete with a changing table pad and fitted toweling cover. Specifications: Dimensions: 35" H x 32" D x 33" L Weight Limit: 45 lbs Gift Wrap not available. Shipping Note: This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO Boxes, US territories, or APO/FPO addresses. |
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Picci Changing Pad In Pink $120 Picci Changing Pad In Pink |
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Summer Contoured Changing Pad $24.99 Summer Contoured Changing Pad |
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Colgate Changing Pad $40 Colgate Changing Pad |
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iCandy Peach Changing Bag In Tomato $149.99 iCandy Peach Changing Bag In Tomato |
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Boppy Changing Pad Fabric In Blue $19.99 Boppy Changing Pad Fabric In Blue |
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Stokke Xplory Changing Bag In Red $119.99 Stokke Xplory Changing Bag In Red |
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Stokke Xplory Changing Bag In Beige $119.99 Stokke Xplory Changing Bag In Beige |
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Stokke Xplory Changing Bag In Purple $119.99 Stokke Xplory Changing Bag In Purple |
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Stokke Xplory Changing Bag In Green $119.99 Stokke Xplory Changing Bag In Green |
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Boppy Changing Pad Fabric In Pink $19.99 Boppy Changing Pad Fabric In Pink |
studying for chem test and confused...?
i have to calculate the standard entropy change (DeltaS^o) for the following equation:
4NH3(g) + 7O2(g) ---> 4NO2(g) + 6H2O(g)
and from the table in the book the values for the standard entropies are:
NH3(g) = 192.3 J/mol*K
O2(g) = 205.0
NO2(g) = 240.0
H2O(g) = 188.7
the answer in the back of the book for the problem is -112 J/K
no matter what i try i can't get the right answer 
does anyone know how to solve this?? thanks!!
To obtain the net entropy of the reaction we use the given formula:
Sum of Entropy of products-Sum of Entropy of reactants
Entropy of each Product/Reactant is: Respective stoichiometric coefficient times its Standard Entropy
In this case:
Products are Water and NO2:
Entropy of Water is (6*188.7): 1132.2 J/K
Entropy of NO2 is (4*240.0): 960 J/K
---------------------------------------------------
Reactants are O2 and NH3
Entropy of Oxygen is (7*205.0): 1435 J/K
Entropy of Ammonia is (4*192.3): 769.2 J/K
Hence Entropy of Reaction is Entropy of Products-Reactants
(1132.2+960)J/K - (1435+769.2)J/K = -112J/K
Delta Cambridge Crib and Changer in Espresso
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DEWALT DW758 8-Inch Bench Grinder $129.95 The heavy duty DEWALT DW758 8-inch bench grinder is ideal for all grinding operations, including sharpening tools, deburring, rust removal, shaping parts and cleaning objects. It's powered by a 3/4 horsepower induction motor that runs at 3,600 RPM for easy and reliable high speed material removal. 8-inch bench grinder with 5/8 horsepower motor (view larger). The DW758 is complemented by an... |
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DEWALT DW716 15 Amp 12-Inch Double-Bevel Compound Miter Saw $724.59 Whether you're cutting baseboards or crown molding, the DEWALT 12-Inch Double-Bevel Compound Miter Saw provides quick, accurate cuts to complete the job. Thanks to a powerful 15 Amp motor, an easy-to-adjust cam-lock miter handle, convenient miter and bevel stops, and a tall fence for oversized decorative moldings, this compound miter saw is ready for a range of crosscutting and miter-cutting appli... |
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DEWALT DW734 15 Amp 12-1/2-Inch Benchtop Planer $730.00 The DEWALT DW734 12-1/2-Inch Thickness Planer features a three-knife cutterhead and a powerful, 15 amp motor that delivers 10,000 rpm. Also offering quick, accurate depth adjustment, extra-long feed tables for material support, and the convenience of knives that are reversible and disposable, this planer makes it easy to create clean, custom stock.12-1/2-Inch Thickness Planer with Three Knife Cutt... |
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LA Baby 4 Sided Changing Pad 30, White $25.99 Change your baby's diaper in superior comfort with the LA Baby Cocoon Changing Pad. The ergonomic four-sided design helps to prevent your baby from rolling off, and is so cozy that baby won't squirm while you complete this frequent task. A quick release safety belt and secure snap-on mounting system also help ease your mind. The waterproof, non-toxic vinyl cover wipes clean and is easy to disinfec... |
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Simmons Kids Beautyrest Beginnings 2-Sided Vinyl Contour Pad $22.85 Features: Changing pad turns any flat surface into a changing surface Restraining strap with easy release buckle keeps baby safety in place Durable quilted cover locks out moisture and stains... |
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Nightstar Contour Changing Pad $24.96 The Serta Nightstar Contour Pad converts any flat surface into a safe convenient changing table. The 3-Sided enclosure helps keep your baby safe and secure. 32L"x16W"x4.5H"... |
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Da Vinci Changing Pad $39 Made from polyurethane foam, this changing pad is hand sewn and will fit all DaVinci changing tables. Dimensions:34"L x 17"W x 1"H Gift Wrap not available. Shipping Note: This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO boxes, US territories, or APO/FPO addresses. |
|
|
Dekor Terry Changing Pad Cover - Blue $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
|
|
Dekor Terry Changing Pad Cover - Natural $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
|
|
Dekor Terry Changing Pad Cover - Pink $9.95 Dekor’s Terry Changing Pad Cover is made of ultra soft, high-quality terrycloth and makes a great addition to changing stations. Fits all standard "16 x 32" changing tables. Available in three colors. Machine washable. |
|
|
Cariboo Classic Changing Table - Teak $394.95 Cariboo is a line of children's furniture that showcases elegant design with practical features. Designed and made in New Zealand, the Cariboo line is constructed of sustainable Radiata wood. The coordinating bassinets and changing tables blend easily with the most stylish home decor. Each piece will be a striking addition to any nursery or master bedroom. The timeless beauty of the Cariboo Classic Changing Table adds a touch of class to any nursery. The Classic Changing Table also has long term use as a stand for toys or books when a changing table is no longer needed. The Classic Changing Table is environmentally friendly, made from sustainable New Zealand Radiata wood. Comes complete with a changing table pad and fitted toweling cover. Specifications: Dimensions: 35" H x 32" D x 33" L Weight Limit: 45 lbs Gift Wrap not available. Shipping Note: This item ships via UPS Ground within contiguous United States only. Cannot be shipped to AK/HI, PO Boxes, US territories, or APO/FPO addresses. |
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Picci Changing Pad In Pink $120 Picci Changing Pad In Pink |
|
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Summer Contoured Changing Pad $24.99 Summer Contoured Changing Pad |
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Colgate Changing Pad $40 Colgate Changing Pad |
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iCandy Peach Changing Bag In Tomato $149.99 iCandy Peach Changing Bag In Tomato |
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Boppy Changing Pad Fabric In Blue $19.99 Boppy Changing Pad Fabric In Blue |
