3 years ago

Science.... homework!

Chemistry

1 answer:

Leokris [45]3 years ago

5 0

The answer to this question is 2 and 3

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6. a) Why is isocyanic acid prepared ""in situ"" in the Dulcin experiment? [2 pts] b) Draw a plausible Lewis structure for isocy

ycow [4]

Answer:

As it gets hydrolyzed easily.

Explanation:

The isocyanic acid may get polymerizes easily into cyanuric acid and a polymer cyamelide

Also, even at 0 °C temperature it may react with mositure and gets hydrolyzed into ammonia an carbon dioxide. Thus we generally prepare it in situ. Even after synthesis it is stroed at dry ice or liquid nitrogen at very low temperature.

The lewis structure is shown in the figure.

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3 years ago

a solution has a volume of 2.0L and contains 36.0 g of glucose. If the molar mass of glucose is 180 g/mol, what is the morality

lilavasa [31]

Find moles:
36.0 g of glucose divided by 180 g/mol = 0.200 moles of glucose 

find molarity: 
0.200 moles of glucose / 2 litres = 0.100 Molar solution

3 0

3 years ago

Consider the following: you mix 10.0 mL of CHCl3 (d = 1.492 g/mL) and 5.0 mL of CHBr3 (d = 2.890 g/mL), giving 15.0 mL of soluti

Allushta [10]

$d_{c}=\frac{m_{1}+m_{2}}{V_{1}+V_{2}}=\frac{10mL*1,492\frac{g}{mL}+5mL*2,89\frac{g}{mL}}{15mL}=\\ \\ =\frac{14,92g+14,45g}{15mL}=\frac{29,37g}{15mL}=1,958\frac{g}{mL}$

4 0

4 years ago

Read 2 more answers

A student mixes some water at room temperature with a white powder also at room temperature. The white powder disappears into th

Leya [2.2K]

Chemical change, because the white powder heated the water and caused a thermal reaction, and possibly gas was produced due to bubbles.

5 0

3 years ago

All matter has __. A.) COLOR B.) MASS C.) VOLUME D.) WEIGHT

Firlakuza [10]

I'm pretty sure it's B) Mass

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3 years ago