A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 ∘C. The partial pressure of water above the solution is torr. The vapor pressure of pure water at 55 ∘C is 118.0 torr. The MW of lactose is 342.3 g/mol. a. 116.3
b. 169.4
c. 94.1
d. 92.7
e. 1.670

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

I’m an electrically neutral atomic any element, there are equal numbers of