Other Chemistry Answers

You thought your last experiment was very cool so you decided to try another one - this time on a cookie. Your goal is to find out how many sugar molecules are in one Girl Guide cookie.

You weigh the cookie and find its mass to be 20.00 g

The nutrition label for the cookie states that 29.00 g of cookie contains 10.00g of sugar (glucose)

Find the percent glucose in a cookie

You thought your last experiment was very cool so you decided to try another one - this time on a cookie. Your goal is to find out how many sugar molecules are in one Girl Guide cookie.

You weigh the cookie and find its mass to be 20.00 g

The nutrition label for the cookie states that 29.00 g of cookie contains 10.00g of sugar (glucose)

a) Find the percent glucose in a cookie

b) Use your percent glucose to determine the mass of sugar in your cookie

c) Calculate the number of moles of glucose in the cookie

d) Use your answer from c) to calculate the number of molecules of glucose in the cookie

e) Use your answer from d) to calculate the number of hydrogen atoms consumed

A 250 mL glass of orange juice contains 22 grams of sugar. How much sugar is in a two-liter (2,000 mL)
bottle of orange juice?

In my chemistry class, we learn about quantities; for example, one of the questions is calculating the mass of 0.010 moles of NH3, and I'm not sure how to do the calculations.

The molecular weight of salicylic acid, \text{C}_7 \text H_{6} \text O_3C
7
​
H
6
​
O
3
​
start text, C, end text, start subscript, 7, end subscript, start text, H, end text, start subscript, 6, end subscript, start text, O, end text, start subscript, 3, end subscript, is 138.12\,\dfrac{\text g}{\text{mol}}138.12
mol
g
​
138, point, 12, start fraction, start text, g, end text, divided by, start text, m, o, l, end text, end fraction.
What is the mass, in grams, of 0.802\,\text {mol}0.802mol0, point, 802, start text, m, o, l, end text of salicylic acid?

What is the molality of 25.0 grams of KBr dissolved in 750.0 mL pure water?

What is the molarity of concentrated HF in the solution is 48% HF by mass and has a density of 1.17g/mL?

1. 1.456 g sample of unknown alloy was dissolved in acid and diluted to 100 mL. What was the percentage (by weight) of iron in the sample, if titration of 20.00 mL aliquot of the diluted solution requires on average 33.45 mL of 0.01005 M solution of potassium permanganate?
​​5Fe2+ + MnO4- + 8H+ → 5Fe3+ + Mn2+ + 4H2O

The mass of premature babies is customarily determined in grams. If a premature baby weighs 1550 g, what is its mass in pounds?