Aerogel or “solid smoke" is a novel material that is made of silicon dioxide, like glass, but is a thousand times less dense than glass because it is extremely porous. Material scientists at NASA’s Jet Propulsion Laboratory created the lightest aerogel ever in 2002, with a density of 0.00011 pounds per cubic inch. The material was used for thermal insulation in the 2003 Mars Exploration Rover. If the maximum space for insulation in the spacecraft’s hull was 2510 cm 3 , what mass (in grains) did the aerogel insulation add to the spacecraft?
Aerogel or “solid smoke" is a novel material that is made of silicon dioxide, like glass, but is a thousand times less dense than glass because it is extremely porous. Material scientists at NASA’s Jet Propulsion Laboratory created the lightest aerogel ever in 2002, with a density of 0.00011 pounds per cubic inch. The material was used for thermal insulation in the 2003 Mars Exploration Rover. If the maximum space for insulation in the spacecraft’s hull was 2510 cm 3 , what mass (in grains) did the aerogel insulation add to the spacecraft?
Aerogel or “solid smoke" is a novel material that is made of silicon dioxide, like glass, but is a thousand times less dense than glass because it is extremely porous. Material scientists at NASA’s Jet Propulsion Laboratory created the lightest aerogel ever in 2002, with a density of 0.00011 pounds per cubic inch. The material was used for thermal insulation in the 2003 Mars Exploration Rover. If the maximum space for insulation in the spacecraft’s hull was
2510 cm
3
, what mass (in grains) did the aerogel insulation add to the spacecraft?
4. Choose the best reagent for carrying out the following reactions from the list below. Place the letter of
the reagent(s) in the box over the reaction arrow. Use only one letter per box.
OH
0
OH
CH3
CH3
0
CH3
CH3
OH
賽
OCH3
H
A.
NaH, then CHI
B.
NaOCH 3, CH3OH
C.
m-CIC6H4CO3H
D.
E.
warm H2SO4/H₂O
F.
G.
H₂/Pd
H.
CH3MgBr in ether, then H3O+
Hg(O2CCF3)2, CH3OH
PCC, CH2Cl2
I,
Cl₂, H₂O
J.
LiAlH4 in ether, then H3O+
CH3
Solve this
く
Predicting the pr
Predict the major products of the following organic reaction:
Δ
Some important notes:
• Draw the major product, or products, of the reaction in the drawing area below.
• If there aren't any products, because no reaction will take place, check the box below the drawing area instead.
• Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are
enantiomers.
?
Click and drag to start drawing a structure.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell