The answer is: The best estimate for the wind speed is 47.15 - 54.05 miles/hour.
The knot is a unit of speed equal to one nautical mile per hour, approximately 1.15 mph.
The ISO standard symbol for the knot is kn.
<em>v</em>(wind) = 41-47 kn; speed of strong gale.
<em>v</em>(wind) = 41 · 1.15 mph.
<em>v</em>(wind) = 47.15 mph.
<em>v</em>(wind) = 47 · 1.15 mph.
<em>v</em>(wind) = 54.05 mph.
Answer: 2.7 grams
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Given: mass of sodium hydrogen carbonate = 3.4 g
mass of acetic acid = 10.9 g
Mass of reactants = mass of sodium hydrogen carbonate+ mass of acetic acid = 3.4 + 10.9= 14.3 g
Mass of reactants = Mass of products in reaction vessel + mass of carbon dioxide (as it escapes)
Mass of carbon dioxide = 14.3 - 11.6 =2.7 g
Thus the mass of carbon dioxide released during the reaction is 2.7 grams.
H and Br are both non-metals which means the bond that comes in between them is covalent. If the composing elements are non-metal and metal, then the bond should be ionic. In this case, HBR is considered polar because the Br atom pulls on the electron much harder than the H atom. Answer is C.
Answer:
Neopentane (C(CH3)4) have a lower a lower boiling point than n-pentane (CH3CH2CH2CH2CH3) because of it branched chain.
Explanation:
Structural isomers are compounds that have the same molecular or chemical formula but have different arrangement of atoms in space. The connectivity of the atoms differs for this compounds but they possess the same molecular formula. An example of structural isomers are butane and methyl propane. Usually, as the number of carbon increases for alkane the number of isomers also increases.
Since Isomers are different compound they are bound to have different characteristic both in melting and boiling points. Generally, straight chained isomers have higher boiling points than branched chain isomers.
n-pentane (CH3CH2CH2CH2CH3) is a straight chained isomer while neopentane (C(CH3)4) is a branched chain isomer. Neopentane (C(CH3)4) have a lower a lower boiling point than n-pentane (CH3CH2CH2CH2CH3) because of it branched chain.
Answer:
72.04g Ti and 7.75g Na
Explanation:
1.505 mol Ti x (47.87g/1 mol) = 72.04g Ti
0.337 mol Na x (22.99g/1 mol) = 7.75g Na
