Answer:- The speed of the satellite is 7.6
.
Solution:- It's a unit conversion problem that could be solved using dimensional analysis which is also known as train trail method.
The given speed of the satellite is 17000 miles per hour and we are asked to convert it to kilometers per second.
given:
1 Kilometer = 0.62 mile
1 hour = 3600 second
Let's use this given info and plug in the values to make the set up as:
![17000\frac{mile}{hour}(\frac{1 kilometer}{0.62 mile})(\frac{1 hour}{3600 second})](https://tex.z-dn.net/?f=17000%5Cfrac%7Bmile%7D%7Bhour%7D%28%5Cfrac%7B1%20kilometer%7D%7B0.62%20mile%7D%29%28%5Cfrac%7B1%20hour%7D%7B3600%20second%7D%29)
= 7.616
We round the answer to two significant figures, since the given number(17000) has only two significant figures.
Hence, the speed of the satellite is 7.6
.
Explanation:
if you follow me I will give your answer
Benedict's solution, deep-blue alkaline solution used to test for the presence of the aldehyde functional group, - CHO. The substance to be tested is heated with Benedict's solution; formation of a brick-red precipitate indicates presence of the aldehyde group. Since simple sugars (e.g., glucose) give a positive test, the solution is used to test for the presence of glucose in urine, a symptom of diabetes. One liter of Benedict's solution contains 173 grams sodium citrate, 100 grams sodium carbonate, and 17.3 grams cupric sulfate pentahydrate. It reacts chemically like Fehling's solution; the cupric ion (complexed with citrate ions) is reduced to cuprous ion by the aldehyde group (which is oxidized), and precipitates as cuprous oxide, Cu2O
Answer:
v = 2.512 E-5 m³/mol
Explanation:
∴ P = 80 bar → V = 0.001384 m³/Kg......sat. liq water table
∴ P = 85 bar → V = 0.0014013 m³/Kg
⇒ P = 83 bar → V = ?
specific volume ( V ):
⇒ V = 0.001384 + (( 83 - 80 ) / ( 85 - 80 ))*( 0.0014013 - 0.001384 )
⇒ V = 0.00139438 m³/Kg
molar volume ( v ):
∴ Mw water = 18.01528 g/mol
⇒ v = 0.00139438 m³/Kg * ( Kg/1000g ) * ( 18.01528 g/mol )
⇒ v = 2.512 E-5 m³/mol
Answer:
This chemical reaction is a combustion.
n = 1.8mol
Explanation:
The ratio of oxygen to water is 13 to 10
The ratio of oxygen to water is also 43 grams to x
Cross multiply: 13x = 430 grams
Isolate x: x = 33.0769g
Remember that n = mass/Molar mass
The molar mass of water is 18.01528 g/mol
n = 33.0769/18.01528
n = 1.836048