To dilute 96% ethanol to 90%, you would need to add a calculated amount of water to the ethanol. The formula to calculate the amount of water needed is (V1*C1) = (V2*C2), where V1 is the initial volume of ethanol, C1 is the initial concentration of ethanol, V2 is the final volume of the solution, and C2 is the final concentration of ethanol. By using this formula, you can determine the volume of water needed to achieve a 90% ethanol solution. **

It depends on the qualifications and experience of the tutor. If the tutor is highly experienced and has a strong track record of success, then 38 euros for a 90-minute session may be reasonable. However, if the tutor is less experienced or does not have a strong track record, then 38 euros may be too much. It's important to consider the value that the tutoring session will provide and whether it is worth the cost. **

To find out how much 90 grams cost, we first need to convert 90 grams to kilograms. Since 1 kg is equal to 1000 grams, 90 grams is equal to 0.09 kg. Next, we can calculate the cost of 0.09 kg by multiplying it by the cost of 1 kg, which is 38 euros. Therefore, 90 grams would cost 0.09 kg * 38 euros = 3.42 euros. **

Your resting heart rate can fluctuate between 75 and 90 due to various factors such as stress, caffeine intake, hydration levels, and physical activity. If you are feeling stressed or anxious, your heart rate may be higher. Similarly, if you have consumed caffeine or are dehydrated, your heart rate may also be elevated. Regular physical activity can help lower your resting heart rate over time, so fluctuations within this range may be normal for you. However, if you notice significant and consistent fluctuations outside of this range, it may be worth consulting a healthcare professional. **

The difference in driving behavior between a 75 PS and a 90 PS car can be noticeable, especially in terms of acceleration and overall power. A 90 PS car will generally have better performance capabilities, allowing for quicker acceleration and easier overtaking on highways. Additionally, a 90 PS car may feel more responsive and agile compared to a 75 PS car, which can be beneficial for driving in various road conditions. Ultimately, the difference in driving behavior between the two power outputs may not be drastic in everyday driving situations, but it can be more pronounced in certain scenarios. **

The difference in driving behavior between a 75 hp and a 90 hp car can be noticeable, especially in terms of acceleration and overall power. A 90 hp car will generally feel more responsive and have better acceleration compared to a 75 hp car, which may feel slower and less powerful, especially when carrying heavier loads or driving uphill. Additionally, a 90 hp car may provide a more confident and smoother driving experience, particularly on highways or when overtaking other vehicles. Ultimately, the difference in driving behavior between the two horsepower ratings can impact the overall driving experience, with the 90 hp car offering a slight edge in performance. **

The difference in driving behavior between a 75 horsepower and a 90 horsepower car may not be significant in everyday driving situations. Both cars should be able to handle typical driving tasks like city commuting and highway cruising without much noticeable variation. However, the 90 horsepower car may offer slightly better acceleration and performance in certain situations, such as merging onto highways or climbing steep hills. Overall, the difference in driving behavior between the two horsepower ratings may be subtle and may not be a major factor for most drivers. **

The difference in driving behavior between a 75 HP and a 90 HP car can be noticeable but may not be significant in everyday driving conditions. A 90 HP car may feel slightly more powerful and responsive, especially when accelerating or overtaking on highways. However, the difference in driving behavior may not be drastic for most drivers during regular city driving. It ultimately depends on individual preferences and driving habits. **